*Kikkerland Solar Radiometer

*I received this product for free but the opinions are my own.

The Kikkerland Solar Radiometer* demonstrates with simple physics and movement how light can be transformed into energy. The black and polished vanes are suspended in the semi-vacuum created inside the radiometer and when it is exposed to a warm light source such as the sun or a lamp, the vanes will spin.

The more powerful the light source the faster the vane will spin. This works because the black side of the vane absorbs the light faster than the polished side, air pressure builds and raises the temperature of the air molecules on the back side of the vane which causes the spinning motion. Hopefully you can see how it works in the video I have included below.

The Kikkerland Solar Radiometer comes in 2 pieces, measures 4 inches x 3 inches and is really easy to slot together. You can use it as a science experiment with your children, or simply display it as an interesting conversation piece. Its also quite relaxing to watch it spin. The Kikkerland Solar Radiometer is available from Amazon for £28.28.

 Leigh💜