A quality 60 degree acrylic prism allows you to learn to split a beam of light into a multicolored rainbow or look through the top beveled edge to reflect images into wonderful kaleidoscopic patterns. Instructions included. More information about the 60 Degree Prism

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

A precision crafted right angle acrylic prism includes instructions to learn secrets of prismatic effects. More information about the Right Angle Prism

This does everything the Levitron platinum pro can do but comes in an attractive cherrywood base. Powerful neodymium magnets allows the spinning top to float even higher. More information about the Cherry wood Levitron

This advanced version of the popular original has enhanced magnetic qualities, thanks to the use of high-powered neodymium iron boron magnets. Basically, this means Levitron Pro can go higher than any other anti-gravity top on the market and stay suspended there by the gyroscopic spinning force. More information about the Levitron Platinum Pro

Electric motors and solar power are familiar concepts. Even levitation is fairly straightforward. Here we combine all three concepts to give you the hand-built, levitating solar-powered motor! More information about the Levitating Hand Built Solar Motor

This solar powered Stirling engine offers a dramatic demonstration of energy conversion. The Stirling engine with its parabolic mirror, can be attached to any conventional camera tripod. When properly aimed at the sun, incoming solar energy is focused on the heat cap of the engine and is converted to rotary motion. More information about the New Solar Stirling Engine

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

These amazing little gadgets allow you to send any illuminated message to viewers up to 50 meters away! Words are left 'floating' in mid air as you move Spacewriter from side to side. Welcome to Wave Messaging! Only the size of a key fob. Spacewriter fits easily in the pocket, and makes a great fun novelty gift. More information about the Spacewriter