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	Tube Stirling engine (ASSEMBLED) - £124.50
	Miniature high temperature Stirling Engine that runs on a tiny methylated spirit flame. More information about the Tube Stirling engine (ASSEMBLED)

	Precision Stirling Engine (BLUE KIT) - £86.00
	available ready-assembled or in self-assembly kit form. More information about the Precision Stirling Engine (BLUE KIT)

	Twin Cylinder Stirling Engine (SILVER ASSEMBLED) - £159.00
	This is a new twin cylinder model of the popular precision single cylinder Stirling engines. They are superbly made and a delight to watch. A modified scotch yoke links the mechanisms of the two cylinders which is mesmerising when in action. The engine can run from just a small difference in temperature between the top and bottom plates. More information about the Twin Cylinder Stirling Engine (SILVER ASSEMBLED)

	Light Crystal Prism 4.5 inch - £13.80
	The Light Crystal Prism will fascinate children by demonstrating the rainbow of colours hidden in natural sunlight. Bevel cut to reflect images into wonderful kaleidoscopic patterns, the Light Crystal Prism will provide hours of imaginative play for your child. More information about the Light Crystal Prism 4.5 inch

	Working Brass Model Steam Roller - £269.99
	This is a superbly realistic model of an early steam road roller. Just supply water and matches to burst this engine into life. More information about the Working Brass Model Steam Roller

	Springy / Slinky (Mini Metal) - £1.99
	Often called a springy or slinky. It is a loosely coiled spring which can be satisfyingly poured from hand to hand or even made to 'walk' down steps. The slinky/springy comes in two pre-assorted colours, Silver and Bronze. 3.5cm in diameter. A classic toy. More information about the Springy / Slinky (Mini Metal)

	Twin Cylinder Stirling Engine (SILVER KIT) - £144.50
	This is a new twin cylinder model of the popular precision single cylinder Stirling engines. They are superbly made and a delight to watch. A modified scotch yoke links the mechanisms of the two cylinders which is mesmerising when in action. The engine can run from just a small difference in temperature between the top and bottom plates. More information about the Twin Cylinder Stirling Engine (SILVER KIT)

	Twin Cylinder Stirling Engine (SOLAR KIT) - £148.00
	This is a new twin cylinder model of the popular precision single cylinder Stirling engines. They are superbly made and a delight to watch. A modified scotch yoke links the mechanisms of the two cylinders which is mesmerising when in action. The engine can run from just a small difference in temperature between the top and bottom plates. More information about the Twin Cylinder Stirling Engine (SOLAR KIT)

	Steam Engine Kit - £34.99 OUT OF STOCK - click here to be emailed when its back in stock
	This is a really nice and simple steam engine kit. Idea for older children. The kit is not too taxing and is actually really fun to see running. More information about the Steam Engine Kit

	Working Brass Model Steam Engine (LOCOMOBILE) - £370.00 OUT OF STOCK - click here to be emailed when its back in stock
	This is a superbly realistic model of an early steam engine. Just supply water and matches to burst this engine into life. More information about the Working Brass Model Steam Engine (LOCOMOBILE)

	METAL Valvular Conduit - Tesla valve - £49.99 OUT OF STOCK - click here to be emailed when its back in stock
	Nikola Tesla’s valvular conduit is another one of his forgotten inventions. Very few understand its importance and what it can do. Invented in 1920 it has largely been overlooked. What is it? In simple terms it is a one-way valve. That in its self is not special. What makes it special is the fact it has NO moving parts. More information about the METAL Valvular Conduit - Tesla valve

	Mamod Working Steam Brunel Vertical Boiler Engine - £565.00 OUT OF STOCK - click here to be emailed when its back in stock
	This is a working model steam engine based on a Brunel vertical boiler engine. More information about the Mamod Working Steam Brunel Vertical Boiler Engine

	Mamod Working Model Steam Roller (CHALLENGER) - £299.99
	This is a superbly realistic model of an early steam road roller. Just supply water and matches to burst this engine into life. More information about the Mamod Working Model Steam Roller (CHALLENGER)

	Radiometer - £11.50
	The vanes in the Crooke’s Radiometer are dark and light on opposite sides. Light striking these vanes leads to unequal forces which cause the radiometer to revolve inside its vacuum globe. The reason for the rotation has been the cause of much scientific debate since its invention by chemist Sir William Crooke in 1873. More information about the Radiometer

	Mamod Working Model Steam Roller - £199.99
	This is a superbly realistic model of an early steam road roller. Just supply water and matches to burst this engine into life. More information about the Mamod Working Model Steam Roller

	Mirascope - Objects appear to float in mid-air - £8.99 OUT OF STOCK - click here to be emailed when its back in stock
	A fascinating optical illusion device and just the sort of scientific curiosity we love. Any item of a suitable size placed in the base appears to float above it totally unsuspended. More information about the Mirascope - Objects appear to float in mid-air

	Mamod Working Model Steam Traction Engine - £209.99
	This is a superbly realistic model of an early steam traction engine. Just supply water and matches to burst this engine into life. More information about the Mamod Working Model Steam Traction Engine

	Springy / Slinky (Large Metal) - £5.99
	Often called a springy or slinky. It is a loosely coiled spring which can be satisfyingly poured from hand to hand or even made to 'walk' down steps. The slinky/springy comes in two pre-assorted colours, Silver and Bronze. 7cm in diameter. A classic toy. More information about the Springy / Slinky (Large Metal)

	Gyroscope Golf Putting Aid - £99.98
	More information about the Gyroscope Golf Putting Aid

	Twin Cylinder Stirling Engine (SOLAR ASSEMBLED) - £155.00
	This is a new twin cylinder model of the popular precision single cylinder Stirling engines. They are superbly made and a delight to watch. A modified scotch yoke links the mechanisms of the two cylinders which is mesmerising when in action. The engine can run from just a small difference in temperature between the top and bottom plates. More information about the Twin Cylinder Stirling Engine (SOLAR ASSEMBLED)

	Beam Stirling engine (ASSEMBLED) - £139.50 OUT OF STOCK - click here to be emailed when its back in stock
	This beautiful engine will run at over 2000rpm on a tiny methylated spirit flame. More information about the Beam Stirling engine (ASSEMBLED)

	Working Brass Model Steam Traction Engine - £265.52
	This is a superbly realistic model of an early steam traction engine. Just supply water and matches to burst this engine into life. More information about the Working Brass Model Steam Traction Engine

	Tube Stirling engine (KIT) - £114.50 OUT OF STOCK - click here to be emailed when its back in stock
	Miniature high temperature Stirling Engine that runs on a tiny methylated spirit flame. More information about the Tube Stirling engine (KIT)

	PLASTIC Valvular Conduit - Tesla valve - £34.99
	Nikola Tesla’s valvular conduit is another one of his forgotten inventions. Very few understand its importance and what it can do. Invented in 1920 it has largely been overlooked. What is it? In simple terms it is a one-way valve. That in its self is not special. What makes it special is the fact it has NO moving parts. More information about the PLASTIC Valvular Conduit - Tesla valve

	Radio Control Add-on for BRASS Steam Rollers - £70.00 OUT OF STOCK - click here to be emailed when its back in stock
	You can now convert your brass steam roller into a radio controlled model. This kit is enables both forwards and backwards movement along with steering left and right. More information about the Radio Control Add-on for BRASS Steam Rollers

	Hero Steam Turbine - £99.98
	This is believed to be the only Hero steam turbine on the market. More information about the Hero Steam Turbine

	Thermal Thinking Putty - Changes Colour - £10.99 OUT OF STOCK - click here to be emailed when its back in stock
	This Heat Sensitive Hypercolors really make their mark! More information about the Thermal Thinking Putty - Changes Colour

	UV Reactive Putty - £10.99
	UV Reactive Putty reacts with vibrant colors to UV light. Shape the putty to however you want and then draw on the putty with the supplied keychain torch. More information about the UV Reactive Putty

	Aerogel - Monolithic Silica Aerogel - £32.00
	Aerogel is a low-density solid-state material derived from gel in which the liquid component of the gel has been replaced with gas. The result is an extremely low density solid with several remarkable properties, most notably its effectiveness as an insulator. More information about the Aerogel - Monolithic Silica Aerogel

	Magnetic Field Viewer - £5.21 OUT OF STOCK - click here to be emailed when its back in stock
	The special paper laminated in this amazing card shows the pole locations on any magnet. Two magnets may look the same physically but have radically different magnetization patterns. With this card you can see how many poles a magnet has, and where they are on the magnet. More information about the Magnetic Field Viewer

	Super Magnetic Thinking Putty - £10.99 OUT OF STOCK - click here to be emailed when its back in stock
	This Thinking Putty has unique and mind-blowing awesome magnetic properties! More information about the Super Magnetic Thinking Putty

	Steam Turbine - £1,100.00
	This is a steam turbine with a unique design. The turbine itself is surrounded in a clear chamber made from strong yet clear acrylic. Around 300ml of water is stored at the bottom ready to heated and turned into steam. When the turbine is spinning, water is drawn up into the upper section creating a 1mm layer of water against the turbine wall. More information about the Steam Turbine

	20 Solid Fuel tablets - £5.10
	These solid fuel tablets from Esbit are non-toxic and consume themselves when burned. They burn for about 15 minutes and are great for our toy steam engine products. More information about the 20 Solid Fuel tablets

	Balsa Glider - £0.98
	This glider flies unbelievably well and can be adjusted for maximum flyability. It is very easy to assemble (takes less than a minute). More information about the Balsa Glider

	Yoshimoto Cube Polyhedral Mechanical Puzzle Toy - £66.98 OUT OF STOCK - click here to be emailed when its back in stock
	Yoshimoto Cube. A Polyhedral Mechanical Puzzle Toy. More information about the Yoshimoto Cube Polyhedral Mechanical Puzzle Toy

	Super Precision Gyroscope (without gimbals) - £90.00
	The Super Precision Gyroscope is a completely new gyroscope, designed from scratch and precision-built to extremely high standards. Made from solid brass and aluminium, it runs on miniature high-grade ball bearings. A free electric motor starter spins it up to 12,000rpm. There is an optional gimbal kit and rate kit. More information about the Super Precision Gyroscope (without gimbals)

	Super Precision Gyroscope (without gimbals) - £85.00
	The Super Precision Gyroscope is a completely new gyroscope, designed from scratch and precision-built to extremely high standards. Made from solid brass and aluminium, it runs on miniature high-grade ball bearings. A free electric motor starter spins it up to 12,000rpm. There is an optional gimbal kit and rate kit. More information about the Super Precision Gyroscope (without gimbals)

	Maxwell top - £349.99
	This 1/2 scale reproduction of Maxwell's Dynamical Top finely handcrafted from solid brass and tool steel stands just over 5.5" high and will delight both the discerning collector and the historical scientific enthusiast. More information about the Maxwell top

	Artificial horizon / attitude indicator (add-on) - £49.99 OUT OF STOCK - click here to be emailed when its back in stock
	We are working on a new add-on kit for our super gyroscope. It turns it into an Artificial horizon (otherwise known as an attitude indicator). More information about the Artificial horizon / attitude indicator (add-on)

	Luxury box for super gyroscope - £24.00
	This box is custom made for the super gyroscope. It is a hinged solid walnut box with 7mm thick sides, hidden magnet catches and a polished finish makes a lavish storage box for the gyroscope. More information about the Luxury box for super gyroscope

	Super Gyroscope Gimbals (add-on kit) - £34.99
	This kit provides additional components for use with the Super Precision Gyroscope allowing a much wider range of experiments to be performed. More information about the Super Gyroscope Gimbals (add-on kit)

	Special edition super gyroscope? - £199.99 OUT OF STOCK - click here to be emailed when its back in stock
	Would you be interested in a special edition super gyroscope? Same size but maybe 2 or 3 times more powerful? We are seriously considering making some. Feel free to facebook or email us to let us know your interest. More information about the Special edition super gyroscope?

	Faster motor for the super gyroscope - £199.99 OUT OF STOCK - click here to be emailed when its back in stock
	Faster motor for the super gyroscope More information about the Faster motor for the super gyroscope

	Twin Cylinder Stirling Engine (BLACK KIT) - £147.50
	This is a new twin cylinder model of the popular precision single cylinder Stirling engines. They are superbly made and a delight to watch. A modified scotch yoke links the mechanisms of the two cylinders which is mesmerising when in action. The engine can run from just a small difference in temperature between the top and bottom plates. More information about the Twin Cylinder Stirling Engine (BLACK KIT)

	Twin Cylinder Stirling Engine (BLACK ASSEMBLED) - £153.18
	This is a new twin cylinder model of the popular precision single cylinder Stirling engines. They are superbly made and a delight to watch. A modified scotch yoke links the mechanisms of the two cylinders which is mesmerising when in action. The engine can run from just a small difference in temperature between the top and bottom plates. More information about the Twin Cylinder Stirling Engine (BLACK ASSEMBLED)

	Advanced Gyro - £79.96
	The last couple of hundred years is littered with some interesting spinning tops and gyroscopes. Every so often someone manages to get them to do something no one else has thought about. More information about the Advanced Gyro

	Deluxe Gyroscope - £7.99
	This gyroscope was designed to be an improvement on the Tedco gyroscope and is the most precise toy gyroscope for its price. Tiny ball bearings in the shaft and a well-balanced wheel keep the gyroscope spinning for several minutes. More information about the Deluxe Gyroscope

	Gyrobot2 - The Amazing Tightrope-Walking Gyrobot - £34.99
	A robot fit for the circus! With this kit, you can build a robot that walks, step by step, along a tightrope. How? Thanks to the robot’s main component, a gyroscope, it can maintain its balance and perform this fun trick without falling over! More information about the Gyrobot2 - The Amazing Tightrope-Walking Gyrobot

	Rattleback - £2.48
	A science curiosity whose ancient and mysterious properties capture the attention of all ages. Rattleback will spin in one direction but when spun in the wrong direction, it will quickly stop, rattle up and down, and then begin to spin in the opposite direction. It also magnifies and is sure to entertain for hours! More information about the Rattleback

	Tedco Original Toy Gyroscope - £6.98
	Produced since circa 1911, This original Tedco gyroscope has been a classic educational toy for generations. Includes starting string, pedestal, and instructions for amazing tricks. More information about the Tedco Original Toy Gyroscope

	Single Cylinder Thermal Engine - £269.99
	A wonderfully engineered thermal engine. More information about the Single Cylinder Thermal Engine

	Horizontal Gas Engine - £349.99
	A wonderfully engineered fully functional single cylinder horizontal gas-powered engine. 1.5cc runs from either butane, propane or a mix of both. More information about the Horizontal Gas Engine

	Precision Stirling Engine (SOLAR ASSEMBLED) - £94.99
	These wonderfully made stirling engines are a joy to watch. They can run from the heat from your hand. They really get up to a speed when place on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. This version is has a clear plastic top and bottom plate which makes it ideal to put by a window to run from solar power. More information about the Precision Stirling Engine (SOLAR ASSEMBLED)

	Precision Stirling Engine (BLACK ASSEMBLED) - £91.91
	These wonderfully made stirling engines are a joy to watch. They can run from the heat from your hand. They really get up to a speed when place on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. More information about the Precision Stirling Engine (BLACK ASSEMBLED)

	ROSS Precision Stirling Engine (BLACK KIT) - £102.12
	This is a Ross yoke Stirling engine. It has ross yoke mechanism which gives a wonderful visual movement. It can even run on the heat from you hand or a warm cup of coffee/tea. More information about the ROSS Precision Stirling Engine (BLACK KIT)

	Two-Cylinder V-Twin Gas Powered Engine - £699.98
	A wonderfully engineered fully functional two-cylinder 'V-twin' gas-powered engine. More information about the Two-Cylinder V-Twin Gas Powered Engine

	Precision Stirling Engine (SILVER ASSEMBLED) - £94.99
	These wonderfully made stirling engines are a joy to watch. They can run from the heat from your hand. They really get up to a speed when place on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. This version has highly poslished chrome like finish. More information about the Precision Stirling Engine (SILVER ASSEMBLED)

	Precision Stirling Engine (BLUE ASSEMBLED) - £96.00
	These wonderfully made stirling engines are a joy to watch. They can run from the heat from your hand. They really get up to a speed when place on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. This version has blue plates. More information about the Precision Stirling Engine (BLUE ASSEMBLED)

	Gakken Vacuum hot air engine kit - £120.00
	This is a kit vacuum engine that is manufactured by the Japanese firm Gakken. Vacuum engines are sometime called flame lickers or flame gulping engines. More information about the Gakken Vacuum hot air engine kit

	ROSS Precision Stirling Engine (SOLAR KIT) - £99.00
	This is a Ross yoke Stirling engine. It has ross yoke mechanism which gives a wonderful visual movement. It can even run on the heat from you hand or a warm cup of coffee/tea. More information about the ROSS Precision Stirling Engine (SOLAR KIT)

	Single Cylinder Gas Engine - £499.99 OUT OF STOCK - click here to be emailed when its back in stock
	A wonderfully engineered fully functional single cylinder gas-powered engine. More information about the Single Cylinder Gas Engine

	SOLAR Powered Precision Stirling Engine (KIT) - £94.99
	These wonderfully made stirling engines are a joy to watch. They can run on the heat from your hand. They really get up to a speed when placed on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. This version is has a clear plastic top and bottom plate which makes it ideal to put by a window to run from solar power. More information about the SOLAR Powered Precision Stirling Engine (KIT)

	Precision Stirling Engine (BLACK KIT) - £89.99
	These wonderfully made stirling engines are a joy to watch. They can run on the heat from your hand. They really get up to a speed when placed on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. More information about the Precision Stirling Engine (BLACK KIT)

	Opposed-piston engine Gas Powered Engine - £725.00
	This is a lovely engineered opposed-piston gas powered engine. The design is inspired by the two-stroke diesel engines between the 1930s and 1950s. More information about the Opposed-piston engine Gas Powered Engine

	Twin Cylinder Thermal Engine - £350.00 OUT OF STOCK - click here to be emailed when its back in stock
	A wonderfully engineered thermal engine. More information about the Twin Cylinder Thermal Engine

	Precision Stirling Engine (SILVER KIT) - £94.99
	These wonderfully made stirling engines are a joy to watch. They can run on the heat from your hand. They really get up to a speed when placed on top of a cup of tea or coffee. Been made over a number of years and this shows with the performance. This version has highly poslished chrome like finish. More information about the Precision Stirling Engine (SILVER KIT)

	4 Stroke Single Cylinder Gas Power Engine - £699.98
	A wonderfully engineered fully functional single cylinder 4-stroke gas powered engine. More information about the 4 Stroke Single Cylinder Gas Power Engine

	Magnetic Sand Timer - £9.98
	The magnetic sand timer makes instant magnetic sand sculptures. As the sand falls into the bottom half of the glass it forms magnetic sculptures due to the hidden magnet in the base. More information about the Magnetic Sand Timer

	Inkless pen, writes in silver - spring shape - £19.99
	This pen has an uncompromising design. This spring pen allows one to instantly see what the pen can do. e.g. it has no ink inside. The wide-wound part of the refined metal spring reveals that there is simply nothing in the pen body. The tightly wound lower part ensures a pleasant grip. More information about the Inkless pen, writes in silver - spring shape

	Music Box - £3.49
	Classic miniature music box with transparent case. Turn the handle and the mechanism inside will chime out a rendition of a traditional song. More information about the Music Box

	Liquid Timer - £7.00
	The elegant cylinder contains a reservoir at each end from which a coloured, viscous liquid drips when turned over. More information about the Liquid Timer

	Sand Timer - 15 minutes - £14.99
	This is a 15 minute sand timer with blue sand. Classic style with a double throat design. Simple and Functional Mesmerizing to watch as you flip it over time and time again. Too many uses to list! More information about the Sand Timer - 15 minutes

	Sand Timer - 30 minutes - £14.99
	This is a 30 minute sand timer with red sand. Designed in a classic style. With two bulbus ends with a single thin throat in the centre. Simple and Functional. A design classic. Too many uses to list! More information about the Sand Timer - 30 minutes

	Pocket Microscope - £7.99
	This cleverly ultra compact microscope is just as powerful as many desktop microscopes but only a fraction of the size and weight. This means you can take the microscope to the specimen. More information about the Pocket Microscope

	Mini Gyroscope - £4.00
	This mini gyroscope comes in a box just 2.5 inches (6cm) square. The disk is 2 inches (5cm) across and because of its size it is ideal for younger children from about 5 years old. More information about the Mini Gyroscope

	Crystal Spinning Top - £0.98
	Transparent spinning top with crystal-like design. More information about the Crystal Spinning Top

	Blow Top - An air powered spinning top - £3.49
	Well this spinning top is a little different in two ways. You can start it by blowing on it and it is also attracted to magnets! A simple fun and inexpensive toy. More information about the Blow Top - An air powered spinning top

	Light Up Gyroscope - £9.98
	This toy gyroscope has a mesmerising light show when spun up with the supplied pull string. The gyroscope is a good size and weight for a toy gyroscope, the spin times are also good. More information about the Light Up Gyroscope

	Sand Timer - 60 minutes - £25.00
	A whole hour sand timer. 60 minutes with yellow sand. Function and beauty go hand in hand with this glass sand timer. Mesmerizing to watch as you flip it over time and time again. Designed in a classic style. Too many uses to list! More information about the Sand Timer - 60 minutes

	Music Box - £17.99
	Music boxes are a classic toy. This one is a little different because you can create your own music. It comes with paper and a punch. You punch out the notes you want to play. Feed the paper into the music box and use the hand crank to play the music. More information about the Music Box

	Mini Humming Top - £5.99
	Miniature spinning top made from tin. Spin one of these tops and it will hum as it turns on the spot, behaving in much the same way to larger tops of a similar design. More information about the Mini Humming Top

	Inkless pen, writes in silver - Standard shape - £19.99 OUT OF STOCK - click here to be emailed when its back in stock
	This pen has won numerous design awards. The body is sleek aluminium but the the writing end holds a secret. There is no ink! More information about the Inkless pen, writes in silver - Standard shape

	Inkless pen, writes in silver - pocket size - £19.99 OUT OF STOCK - click here to be emailed when its back in stock
	Before the invention of the pencil, medieval scholars would use silver to draw fine lines. This has now been recreated into a modern form. A pen that has no ink and which has a tip made of a silver alloy. More information about the Inkless pen, writes in silver - pocket size

	Drinking Bird - a novel heat engine - £9.98
	This is a classic toy. The Drinking bird swings taking regular sips of water until it runs out of water. The toy often runs for days at a time despite just using evaporation of water to power the device. A great demonstration of thermodynamics. More information about the Drinking Bird - a novel heat engine

	Metal Titan Powerball - £119.98
	The Titan is the top of the range latest generation of powerball gyroscopes, this remarkable gyroscope offers the serious Powerball enthusiast a spin experience like absolutely no other. More information about the Metal Titan Powerball

	Gravitron - £5.50
	This is another variation on the humble gyroscope appealing to children's imaginations. The Gravitron is a gyroscope concealed in a UFO and is operated with a simple-to-use T-handle suitable especially for small children. More information about the Gravitron

	Magnetic balls for fidget spinners - 3 balls - £7.00
	Our standard fidget spinners come with chrome steel balls. You can pull them out and replacement with these magnetic balls. More information about the Magnetic balls for fidget spinners - 3 balls

	Luxury high performance fidget spinner - 3 balls - £19.99
	Using our extensive experience with gyroscopes and machined metal products we have created the ultimate luxury performance fidget spinner. More information about the Luxury high performance fidget spinner - 3 balls

	Tungsten balls for fidget spinners - 3 balls - £11.99
	Our standard fidget spinners come with chrome steel balls. You can pull them out and replacement with these super heavy tungsten carbide balls. More information about the Tungsten balls for fidget spinners - 3 balls

	Vulcan Stove Fan (Stirling Engine Powered) - £125.00 OUT OF STOCK - click here to be emailed when its back in stock
	This Stirling engine powered fan is powered solely by the heat from a stove. It requires no external power source such as batteries or AC power. The fan circulates the stove’s warmth quietly, efficiently and inexpensively. More information about the Vulcan Stove Fan (Stirling Engine Powered)

	Luxury high performance fidget spinner - 6 balls - £29.99
	Using our extensive experience with gyroscopes and machined metal products we have created the ultimate luxury performance fidget spinner. More information about the Luxury high performance fidget spinner - 6 balls

	KGB Vanishing Ink Pen - £9.98 OUT OF STOCK - click here to be emailed when its back in stock
	The Russian KGB disappearing ink spy pen is based on a secret formula developed by KGB scientists during the Cold War period, and has been recently adapted into a modern gel pen format. More information about the KGB Vanishing Ink Pen

	Victorian Humming Top - £13.50
	This is a large humming top based on Victorian humming tops and comes with pictures of Victorian toys painted on. 18 cm in size. More information about the Victorian Humming Top

	Rainbow Humming Top - £15.00
	This is a large pretty rainbow humming top is based on victorian humming tops but with a modern fun design. 18 cm in size. More information about the Rainbow Humming Top

	Metal Flip Over Top - £5.48
	Once the top is spun it suddenly flips over and continues to spin upside-down. An unusual gyroscopic effect ! More information about the Metal Flip Over Top

	Fidget Spinner Mirror Ball - £14.99
	This is a very ornamental desktop fidget spinner. The shape and almost mirror like finish really give it a tremendous lustre. It has bearings and a hidden base under it. It is made from solid Aluminium giving it substantive feel and inertia. More information about the Fidget Spinner Mirror Ball

	Magnetically Levitated Solar Motor - £275.00
	The first thing you notice about this product is the fact that it is levitating, then you notice it is spinning using just the power from the sunlight! Ultra-strong neodymium magnets keep it levitating, while more magnets and a copper coils and solar panels keep it rotating. More information about the Magnetically Levitated Solar Motor

	Tesla Turbine - MK2 - £214.45 OUT OF STOCK - click here to be emailed when its back in stock
	A Tesla turbine is a bladeless turbine designed by the Serbian-American inventor Nikola Tesla who was also responsible for the creation of alternating current, multi-phase electricity supply and may other electrical innovations. This model generates up to 60 Watts of 3-phase power from a standard compressed air line. More information about the Tesla Turbine - MK2

	Tesla Turbine - MK3 - £255.31 OUT OF STOCK - click here to be emailed when its back in stock
	Once again this turbine eagerly is awaited. Further improvements have been made after plenty of R&D from the last turbine. The Tesla turbine efficiency has increase, it now has ceramic bearings and it is now close-loop which makes it ideal for organic rankine cycle systems. More information about the Tesla Turbine - MK3

	Spectroscope - Pocket size 12x54mm - £49.99 OUT OF STOCK - click here to be emailed when its back in stock
	This is a pocket-sized diffraction grating spectroscope. Point one end at a light source and the hold the other end to your eye to reveal a clear spectrum. More information about the Spectroscope - Pocket size 12x54mm

	Hot Air, Caloric and Stirling Engines - £25.00 OUT OF STOCK - click here to be emailed when its back in stock
	Robert Sier's 350 page hardback book on Hot Air, Caloric and Stirling Engines is a comprehensive record of the development of heat based engines from the beginning up to modern day. More information about the Hot Air, Caloric and Stirling Engines

	Robert Stirling’s Models of the Air Engine - £12.95 OUT OF STOCK - click here to be emailed when its back in stock
	A new book from James Rizzo is to be celebrated, and James certainly does not disappoint with this book. In it he describes in detail the two earliest surviving hot air engines, and how to build working replicas, or reduced sized models of them. More information about the Robert Stirling’s Models of the Air Engine

	Stirling and Hot Air Engines - £27.99
	Stirling and Hot Air Engines provides an essential reference to engineers, teachers, students and hobbyists. The books aims to provide a thorough insight into designing and building Stirling and other hot air engines. More information about the Stirling and Hot Air Engines

	Tesla Turbine - MK4 - £600.00 OUT OF STOCK - click here to be emailed when its back in stock
	Coming soon. Production of the Mk4 is well under way. Feedback from customers is that you wanted a larger turbine with higher efficiency and can produce more power. Have a look at videos on the product page to see the progress. More information about the Tesla Turbine - MK4

	280hz AutoStart Pro Powerball Gyroscope - £39.98
	This gyroscope uses no batteries but can get up to speeds of 18,000rpm+ using nothing more than a rotary hand motion. It can be used as a wrist/arm exerciser and because of the massive amount of torque it develops, it will make a brilliant school/college demonstration. Comes with a built-in rpm counter. More information about the 280hz AutoStart Pro Powerball Gyroscope

	Tesla Turbine - MK1 - £204.24 OUT OF STOCK - click here to be emailed when its back in stock
	This turbine is now replaced by the metal version More information about the Tesla Turbine - MK1

	Around the world by Stirling Engine - £12.76 OUT OF STOCK - click here to be emailed when its back in stock
	What is the `Perfect Engine'? The Stirling engine is so clean, efficient, and silent that it is sometimes called the Perfect Engine. Learn all about them in this fascinating book More information about the Around the world by Stirling Engine

	Building Stirling Engines without a lathe - £6.95 OUT OF STOCK - click here to be emailed when its back in stock
	If you have always wanted to build a working model from scratch, or are fascinated by Stirling engines and want to experiment further, but have been frustrated by lack of any machine tools, then this is the book you have been waiting for. More information about the Building Stirling Engines without a lathe

	Pocket Digital Laser Tachometer - £9.98
	Tachometers are used to measure the rate of rotation (in revolutions per minute) of a spinning object. This one uses a laser beam which allows for non-contact measurement. It is ideal for measuring the speed of gyroscopes and a `must-have' for laboratory experiments. More information about the Pocket Digital Laser Tachometer

	Gas powered hit-and-miss engine - £299.99 OUT OF STOCK - click here to be emailed when its back in stock
	An affordable classic hit and miss engine. The sound these types of engines make is very distinctive "POP whoosh whoosh whoosh whoosh POP". More information about the Gas powered hit-and-miss engine

	Stove/stovepipe thermometer - £8.99
	This thermometer allows you to measure the temperature of your stove or stovepipe. Too low a temperature and creosote deposits will build up. Too high and your stove will have a poor efficiency. More information about the Stove/stovepipe thermometer

	ROSS Precision Stirling Engine (BLACK ASSEMBLED) - £102.12
	This is a Ross yoke Stirling engine. It has ross yoke mechanism which gives a wonderful visual movement. It can even run on the heat from you hand or a warm cup of coffee/tea. More information about the ROSS Precision Stirling Engine (BLACK ASSEMBLED)

	ROSS Precision Stirling Engine (SOLAR ASSEMBLED) - £110.00
	This is a Ross yoke Stirling engine. It has ross yoke mechanism which gives a wonderful visual movement. It can even run on the heat from you hand or a warm cup of coffee/tea. More information about the ROSS Precision Stirling Engine (SOLAR ASSEMBLED)

	Inverted Stirling Engine (SOLAR ASSEMBLED) - £140.00 OUT OF STOCK - click here to be emailed when its back in stock
	The Kontax Solar Inversion Low Temperature Differential Stirling Engine is the only engine of its kind available for sale anywhere in the world. More information about the Inverted Stirling Engine (SOLAR ASSEMBLED)

	Square Bottle of Ferrofluid Magnetic liquid - £28.99 OUT OF STOCK - click here to be emailed when its back in stock
	Ferrofluid in a bottle and supplied with a magnet. Ferrofluid is a black runny fluid.... that reacts to magnetic fields, often changing into seemingly impossible shapes as it tries to maintain the shape of the magnetic field. This gas bottle has ferrofluid which is suspended in a clear fuild allowing you play with the ferrofluid without ever getting messy ! It is mesmerising and strangely very enjoyable to manipulateblack liquid at will. More information about the Square Bottle of Ferrofluid Magnetic liquid

	Magnetically Floating Spinning Top - £25.00 OUT OF STOCK - click here to be emailed when its back in stock
	This Magnetically Floating Spinning Top uses the principles of gyroscopic physics and maglev technology. The end result is an amazing educational toy that floats in mid-air. More information about the Magnetically Floating Spinning Top

	Control Moment Gyroscope Platform - Mk2 - £3,000.00
	This kit helps you to understand all the fundamentals of Control Moment Gyroscopes. Very niche market. Aimed at uber-geeks and aerospace students/engineers. More information about the Control Moment Gyroscope Platform - Mk2

	Protective glass dome - £19.99
	These glass domes are ideal for keeping your Stirling engines dust-free and in superb condition. The bases are made from wood. More information about the Protective glass dome

	Fire Plunger - £22.99
	This Fire Plunger is used to demonstrate Gas Law and Diesel Engine Principle. More information about the Fire Plunger

	Polymorph - Low temperature melting plastic - £4.99
	Polymorph is a fascinating new type of material. It is perfect for hobbyists whether you are model making or prototyping. At room temperature it just as strong as a normal plastic but at 62 degrees C becomes soft and mouldable. More information about the Polymorph - Low temperature melting plastic

	Ferrofluid - Magnetic fluid/liquid - £20.41
	Ferrofluid is a really interesting material. As the name suggests it is a runny fluid....until it is subjected to a magnet. Ferrofluid reacts to magnetic fields, often changing into seemingly impossible shapes as it tries to maintain the shape of the magnetic field. More information about the Ferrofluid - Magnetic fluid/liquid

	Inverter Magnet - Tractor Beam Magnet - £19.99
	The Inverter Magnet contains a number of magnets in a special arrangement. The special arrangement creates a unique magnetic field that can hold another magnet a fixed distance away. More information about the Inverter Magnet - Tractor Beam Magnet

	5 Replacement Strings for Gyroscopes - £0.80
	High quality string for toy gyroscopes. Ideal for mini, tedco, extreme deluxe and Japanese gyroscopes. In fact any toy gyroscope for that matter ! 5 strings included. More information about the 5 Replacement Strings for Gyroscopes

	Time Machine - £0.00 OUT OF STOCK - click here to be emailed when its back in stock
	So we are working on a time machine..... We are now on the 3rd prototype and things have been progressing well recently. It will be able to pause, fast-forward and rewind time ! More information about the Time Machine

	Wooden musical boxes - £10.99
	Music boxes are a classic toy. This have music from The Beatles, Pink Panther, Game of Thrones, Winnie the Pooh, Harry Potter, The Godfather and Pirates of the Caribbean. More information about the Wooden musical boxes

	Brass 1/2 BSPT male to 1/4 BSPT male adapter - £2.50
	This is a brass 1/2 inch BSPT Male to 1/4 BSPT male adapter. Ideal for use with the Tesla valve. When used with our M6 to 1/4 BSPT female adapter you convert to 1/2 BSPT. More information about the Brass 1/2 BSPT male to 1/4 BSPT male adapter

	Halbach Array - £19.99
	A Halbach array is a special arrangement of permanent magnets which increases the magnetic field on one side of the device while cancelling the field to near-zero on the other side. It is the closest you can get to a monopole magnet. More information about the Halbach Array

	Vortex Tube - £124.99 OUT OF STOCK - click here to be emailed when its back in stock
	Vortex tubes are a type of heat pump. They have one inlet and two outlets. Compressed air is pumped into the inlet, where it is spun at high speed causing it to split into two streams, one stream giving kinetic energy to the other. The result is one outlet has hot air while the other is considerably colder. More information about the Vortex Tube

	Brass M6 male to 14 inch BSPT female adapter - £2.50
	This is a brass M6 male to 1/4 inch BSPT female adapter. Ideal for use with the Tesla valve to convert either the inlet or outlet to 1/4 BSPT female. More information about the Brass M6 male to 14 inch BSPT female adapter

	Circular Halbach Array - £34.99
	A Halbach array is a special arrangement of permanent magnets which increases the magnetic field on one side of the device while cancelling the field to near-zero on the other side. It is the closest you can get to a monopole magnet. More information about the Circular Halbach Array

	Gyroscope.com mug - £5.10 OUT OF STOCK - click here to be emailed when its back in stock
	This is our very own gyroscope.com mug. If you ever wanted a dishwasher safe mug for your tea or coffee with pictures of a V-twin engine, gyroscopes and Stirling engine then now is your chance to buy one. More information about the Gyroscope.com mug

	Feel Flux - A device showing Lenz's Law - £70.00
	Simple yet unexpected. The Flux original is the perfect combination of science and design, amaze anybody with the beautiful Lenz’s law provides. Drop the ultra-strong magnet ball inside the perfectly turned copper tube and see how extremely slowly the ball falls. It is something you have to feel in your hands to believe. More information about the Feel Flux - A device showing Lenz's Law

	4 Cylinder Gas Powered Engine - £1,200.00
	This is a 4-cylinder `tumbling spider' gas power engine. This engine is based on aircraft engines tested in the 1930s and 40s. These engines were particularly interesting as replacements for radial engines because their smaller diameter meant that they took up less space. More information about the 4 Cylinder Gas Powered Engine

	Kevlar string for gyroscopes - £2.00
	Most toy gyroscopes are started with string. That's the way it has been done for over 100 years. Sadly sometimes the string can wear and break. That is a pain. So we are introducing kevlar string! Same stuff that is used for bullet proof vests and army helmets. More information about the Kevlar string for gyroscopes

	Gyrosteady - Camera Gyrostabilizer - £419.98 OUT OF STOCK - click here to be emailed when its back in stock
	Our new GyroSteady camera gyrostabilizer keeps your camera stable using gyroscope technology to stop unwanted movements. Ideal for professionals and 'prosumers'. More information about the Gyrosteady - Camera Gyrostabilizer

	Control Moment Gyroscope Platform - £1,512.77 OUT OF STOCK - click here to be emailed when its back in stock
	This kit helps you to understand all the fundamentals of Control Moment Gyroscopes. Very niche market. Aimed at uber-geeks and aerospace students/engineers. More information about the Control Moment Gyroscope Platform

	Solar Lighter - £14.99
	This is the world's only pocket-sized solar lighter. The stainless steel parabolic mirror can focus the sun's radiant energy to a focal point which can reach 1000 degrees! More information about the Solar Lighter

	Skeleton Knife - £7.99
	The unusual skeletonized design of this folding knife not only adds style, but enables the pocket knife to be opened with a smooth one-handed motion, making it an easy and secure tool to use. More information about the Skeleton Knife

	Leidenfrost Effect Ring - £26.99
	The Leidenfrost ring is a metal ring that demonstrates the Leidenfrost effect. It has a precise shaped pattern on the surface that causes the water to be propelled across the surface. More information about the Leidenfrost Effect Ring

	Rare-Earth Magnet (Cube 0.125 inch) x 100 - £12.98 OUT OF STOCK - click here to be emailed when its back in stock
	Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. More information about the Rare-Earth Magnet (Cube 0.125 inch) x 100

	Rare-Earth Magnet (Rod 0.25 x 0.5 inch) x 10 - £12.98 OUT OF STOCK - click here to be emailed when its back in stock
	Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. More information about the Rare-Earth Magnet (Rod 0.25 x 0.5 inch) x 10

	Stirling Engine Powered Rocket Train - L1 - £409.99
	The legendary Stephenson's Rocket which won the Rainhill Trials in October 1829. More information about the Stirling Engine Powered Rocket Train - L1

	Ford Model T Car - AF4 - £449.99 OUT OF STOCK - click here to be emailed when its back in stock
	Ford Model T (AF1). Take a trip back to the year 1915. More information about the Ford Model T Car - AF4

	Trailer for AS1 Stirling Car - £85.00
	Now you can add a trailer to you A1 car. You can tidy up you desk by transporting pens, paper clips and other objects from one side of the desk to the other! The trailer coupling is including in trailer set! More information about the Trailer for AS1 Stirling Car

	Stirling Engine Powered Car - A1 - £329.99
	Robert Stirling, inventor of the Stirling motor, and Carl Benz have one thing in common: They both patented exceptional revolutionary technology. Böhm combined the ideas of both inventors in the Stirling-Car A1. More information about the Stirling Engine Powered Car - A1

	Texas Pumpjack - TP1 - £349.99
	In Texas they call them "nodding donkeys" or pumpjacks! More information about the Texas Pumpjack - TP1

	Stirling Engine Power Plant - HB5 - £395.99 OUT OF STOCK - click here to be emailed when its back in stock
	If you are looking to drive something from a Stirling engine, you are in the right place. The Power Plant is the strongest Böhm Stirling motor to date. More information about the Stirling Engine Power Plant - HB5

	Ferris wheel - R3 - £255.00
	This is a 9 gondola ferris wheel accessory for the Böhm range of Stirling engines. More information about the Ferris wheel - R3

	Steampunk Marble Machine - ROLL1 - £299.99
	Bohm Stirling Engine Steampunk Marble Machine More information about the Steampunk Marble Machine - ROLL1

	Stirling Engine Sports Car - A4 - £349.99
	This Sports car A4 is a homage to the first Mercedes vehicle. More information about the Stirling Engine Sports Car - A4

	Steampunk Marble Machine - ROLL2 - £1,698.00 OUT OF STOCK - click here to be emailed when its back in stock
	Bohm Stirling Engine Steampunk Marble Machine More information about the Steampunk Marble Machine - ROLL2

	Stirling Engine Peugeot Car - AP172 - £349.99
	This Sports car A4 is a homage to the first Mercedes vehicle. More information about the Stirling Engine Peugeot Car - AP172

	Viking Ship Stirling engine - HB4 - £259.99
	If you are looking for a Stirling Engine but want something a little different then this maybe what you are looking for. More information about the Viking Ship Stirling engine - HB4

	Rare-Earth Magnet (Rod 0.125 x 0.125 inch) x 100 - £12.98
	Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. More information about the Rare-Earth Magnet (Rod 0.125 x 0.125 inch) x 100

	Big Powerstation - Böhm Stirling engine (BHB12) - £249.98
	Big Powerstation - This engine is packed with torque. More information about the Big Powerstation - Böhm Stirling engine (BHB12)

	Rare-Earth Magnet (Rod 0.125 x 0.25 inch) x 50 - £12.98
	Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. More information about the Rare-Earth Magnet (Rod 0.125 x 0.25 inch) x 50

	Little Pump - Böhm Stirling engine (BHB11) - £173.60 OUT OF STOCK - click here to be emailed when its back in stock
	Little Pump - Pump it up could be this little engines's motto. Enjoy this machine with its overhead rocker arm and precision crankshaft. More information about the Little Pump - Böhm Stirling engine (BHB11)

	Big Bonsai - Böhm Stirling engine (BHB14) - £250.00
	Big Bonsai - Power and energy pour from this machine via a double overhead cam. More information about the Big Bonsai - Böhm Stirling engine (BHB14)

	Little Bonsai - Böhm Stirling engine (BHB13) - £194.99
	Little Bonsai - You can almost feel the energy flowing through this quiet machine. Double rocker arm version with a precision crankshaft. More information about the Little Bonsai - Böhm Stirling engine (BHB13)

	Smoking Colt - Böhm Fire Eater (HB22) - £449.99
	Smoking Colt - listen carefully to the crackling sound of this firefighter. It reminds you of the old Tractors from the last century. It uses water evaporation cooling. The alcohol burner is highly adjustable to control the speed. Enjoy the amazing sound and let the pleasing design fascinate you. Larger and more impressive than the rest. More information about the Smoking Colt - Böhm Fire Eater (HB22)

	Classic Smoking - Böhm Fire Eater (BHB24) - £409.99 OUT OF STOCK - click here to be emailed when its back in stock
	Smoking Colt - listen carefully to the crackling sound of this firefighter. It reminds you of the old Tractors from the last century. It uses water evaporation cooling. The alcohol burner is highly adjustable to control the speed. Enjoy the amazing sound and let the pleasing design fascinate you. Larger and more impressive than the rest. More information about the Classic Smoking - Böhm Fire Eater (BHB24)

	Twin Bridge - Böhm Stirling engine (BHB26) - £259.99
	Twin Bridge - This end is second in the bridge series of engines. 2 engines inline. More information about the Twin Bridge - Böhm Stirling engine (BHB26)

	Small Tattoo - Böhm Stirling engine (BHB31) - £204.24
	Small Tattoo - Slightly taller than the others with a wonderful movement. Tattoo name comes from the design cut into the side. More information about the Small Tattoo - Böhm Stirling engine (BHB31)

	Little Bridge - Böhm Stirling engine (BHB25) - £199.99
	Little Bridge - This lovely little engine is part of a series. More information about the Little Bridge - Böhm Stirling engine (BHB25)

	Big Bridge - Böhm Stirling engine (BHB28) - £400.00
	Big Bridge -Bohm created a really big engine by putting 4 engines all inline. More information about the Big Bridge - Böhm Stirling engine (BHB28)

	Calliper Pen - It measures and writes! - £17.35
	Calliper measurer? Tire tread gauge? Ruler? Thread scale? Writing instrument? The calliper pen is all of these in one unique product. It is a multipurpose instrument, constructed of chromium-plated brass for those who demand more than just the joy of writing. More information about the Calliper Pen - It measures and writes!

	New Book On Gyroscopes - £24.99 OUT OF STOCK - click here to be emailed when its back in stock
	This book was written as a response to a lack of publications offering easily understandable information on gyroscopes. This book aims to fill the gap between dictionary definitions and the all too often highly mathematical books on gyroscopes. With the aid of illustrations you will be shown the principles of gyroscopes including precession and nutation, where and how gyroscopes are used, practical mathematical examples and some of the history of gyroscopes. More information about the New Book On Gyroscopes

	Large Stirling Engine Black (ASSEMBLED) - £160.00
	This a larger version of our Stirling Engines. It comes pre-assembled, tested and ready to run. Affectionately nicknamed our dinner plate engine because of the size of the of the engine. More information about the Large Stirling Engine Black (ASSEMBLED)

	Erasable Pen - £2.03
	These unique pens can erase their own ink cleanly by friction-generated heat, leaving no debris. Write a message, if you make a mistake just use the non-writing end of the pen to erase the ink. It has a fine 0.7mm tip and the ink comes in black, purple or blue ink. More information about the Erasable Pen

	Small drill to start lecture gyroscope - £25.00 OUT OF STOCK - click here to be emailed when its back in stock
	More information about the Small drill to start lecture gyroscope

	The Original Set - SUPERCOLOR - 16pcs - £66.00
	More information about the The Original Set - SUPERCOLOR - 16pcs

	Stapleless Stapler - £13.00
	Instead of punching finger-stabbing, environmentally unsound steel wires into your papers, this gadgets folds, cuts and tucks the paper itself to hold sheets together just like a `real' staple. Never needs refilling. More information about the Stapleless Stapler

	Chargeable USB Drill - £24.00
	This little drill is perfect for starting our lecture gyroscope. The low torque and high speed is ideal. USB rechargeable too! More information about the Chargeable USB Drill

	Super Gyroscope Replacement Part Kit - £14.99
	This is a bearing replacement kit for our popular super gyroscope. More information about the Super Gyroscope Replacement Part Kit

	Super Gyroscope Rate Kit - £25.00
	This kit turns the Super Precision Gyroscope and gimbals kit into a rate gyroscope making an ideal demonstration for pilot training or physics lessons. More information about the Super Gyroscope Rate Kit

	Bag of parts that come with super gyroscope - £6.00
	This is a replacement bag of super gyroscope parts. More information about the Bag of parts that come with super gyroscope

	Brass Lecture Gyroscope - £599.99 OUT OF STOCK - click here to be emailed when its back in stock
	Its back! By popular demand we have produced another version of our lecture gyroscope. Based on University gyroscopes from the 19th century this gyroscope is over 12 inches tall and is made from solid brass. It runs almost silently on precision stainless steel miniature ball bearings. More information about the Brass Lecture Gyroscope

	Replacement Motor for Super Precision Gyroscope - £15.00
	This is a replacement motor and battery pack for the super gyroscope. You shouldn't ever need a spare motor and battery pack but if you happen to loose yours or damage it, don't worry you can buy this replacement from us. More information about the Replacement Motor for Super Precision Gyroscope