Glass Radiometer - 20cm

Measure electromagnetic radiation with the curious and mesmerising radiometer
(No reviews yet) Write a Review
Product Code:
Selected Colour is
Adding to basket… The item has been added
Standard delivery - With our standard delivery service we aim to deliver your item within 5 days, whilst asking you to allow up to 10 days as some items are despatched directly from our trusted specialist suppliers.
This curious and mesmerising radiometer measures the power of electromagnetic radiation. Made from a glass bulb with much of the air removed to form a partial vacuum, inside is a set of fine metal vanes, each with one dark and one light side, mounted on a spindle. The vanes rotate, as if by magic, when exposed to sunlight, artificial light, or infrared radiation (even the heat of a hand nearby can be enough) – the more intense the light, the faster the rotation.

  • Measures the power of electromagnetic radiation
  • Made of glass
  • Choose from Blue or Clear base
  • Measures 20cm tall

Hello! We’ve noticed your internet browser hasn’t been updated for a while. You won’t be able to checkout on our website without upgrading. You will increasingly find that you are struggling with other websites too. Please click here to discover how to upgrade – it’s very simple.