Radiometer, blue base, 16cm
Radiometer, blue base, 16cm ~ Radiomètre, base bleue, 16cm ~ Radiometro base blu, 16cm ~ Strahlungsmesser, blauer Sockel, 16cm ~ Radiometro, azul, base, 16 cm ~ Radiometer, blue base, 16cm
- Product Code: 7685
- Catalogue Page: 39
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These curious and mesmerising instruments measure 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.
Attribute | |
Brand | Nauticalia |
Dimensions | 16cm |