Description
When exposed to sunlight, vanes transfer heat to each one but not to the same degree which causes the radiometer vanes to spin.
THE LIGHTER, THE FASTER
It’s the spear powered by the sun! When light strikes the diamond wings it transfers heat to each one, but not to the same degree. The light wing reflects the rays and the darker wing absorbs the rays. The stronger the light the more energy there is to heat up the darker side causing the wings to spin faster.
Warning
In order to keep the mica vanes light, a smoke blacken method is used for production.
During transportation, a small amount of mica black powder may fall off.
Therefore, some mica powder is slightly attached to the glass sphere, which is a normal condition.
Those who mind it please think it through before placing the order.