Solar Radiometer 11x8 cm

€43

Solar Radiometer also called Crookes radiometer.

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Description

Article no.: 101656

A Solar Radiometer spins its wheel in sunlight. No batteries needed. It consists of an airtight bulb containing a vacuum, the wheel starts to spin when exposed to sunlight and it spins faster the more sunlight it is exposed to, there for it becomes a good indicator of how much uv radiation is in real time. Size: 11x8 cm