The Solar Radiometer ball with drop for hanging is the basic type of radiometer . The sphere is made of crystal Lauscha glass. In the glass body of the light mill is a rotor turned by light. The ball is on the top with a glass eye for hanging and at the bottom with a glass hook for another hanging radiometer. This article has the protected trademark of the Thuringian glassblower federation.
The Solar Radiometer with hoop and hook for hanging is the basic type of radiometer. The sphere is made of crystal Lauscha glass. Inside the glass body of the light mill is a rotor turned by light. The body of the solar radiometer features a glass hoop for hanging the radiometer and has a hook on the bottom for another hanging radiometer. This article has the protected trademark of the Thuringian glassblower federation.
