Kikkerland ST71 Storm Glass

Par un écrivain mystérieux

Description

Crystals in chamber respond to changes in atmospheric pressure Markings of glass indicate forecast Solid Beech wood base Makes a great decorative

Kikkerland Storm Glass - Admiral Fitzroy's Weather Predicting Storm Glass

Solar Radiometer By Kikkerland Also known as the light mill or solar engine, the solar radiometer demonstrates with simple physics and movement how light can be transformed into energy. Black vanes and polished vanes are suspended in the semi vacuum created inside the radiometer. Expose the radiometer to a warm light source such as a lamp or the sun, the vanes spin.The more powerful the source the faster the vanes spin. Note Radiometers are hand made and will vary in somewhat in size and color.