An radiometer Anonymous

An radiometer by Anonymous

Fine art poster
Fine art poster

  • Amazing giclée print quality
  • 280gsm thick fine art print paper
  • 100+ year colour guarantee
  • Dimensions:
    • x cm overall ( x in)
    • x cm image ( x in)
£14.95

Framed picture
Framed picture

  • Premium wooden frame with a thick bevel-cut mount
  • Fully strung, ready-to-hang
  • 100+ year colour guarantee
  • Dimensions:
    • x cm overall ( x in)
    • x cm image ( x in)
£14.95

Canvas
Canvas

  • 400gsm artist grade cotton
  • Giclée fine art print
  • 100+ year colour guarantee
  • European kiln-dried knotless pine
  • Dimensions:
    • x cm overall ( x in)
    • x cm image ( x in)
£14.95

Postcard
Postcard

  • Printed on 320gms thick watercolour paper
  • Blank reverse for your own message
  • Dimensions:
    • x cm overall ( x in)
    • x cm image ( x in)
£14.95

Greetings card
Greetings card

  • Printed on 320gms thick watercolour paper
  • Blank inside for your own message
  • Supplied with envelopes and protective cellophane sleeves
  • Dimensions:
    • x cm overall ( x in)
    • x cm image ( x in)
£14.95

Image information

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An radiometer

A radiometer with aluminium vanes. An instrument designed for measuring the mechanical effect of radiant energy. Mounted in a partial vacuum, the central rotor spins when the vanes are exposed to light. Chemist William Crookes (1832-1919) initially believed the vanes with black surfaces were pushed around by pressure from light radiation. This was incorrect and other theories were put forward. It was not until 1879 that Osborne Reynolds suggested the correct explanation, warmer molecules striking the edge of the vanes obliquely with a higher force than the colder molecules.

ca. 1875

  • Image reference: RS-8489

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Our prints

We use a 280gsm fine art paper and premium branded inks to create the perfect reproduction.

Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.

Read more about our fine art prints.

Manufactured in the UK

All products are printed in the UK, using the latest digital presses and a giclée printmaking process.

We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.

Delivery and returns

We print everything to order so delivery times may vary but all unframed prints are despatched within 2-4 days via courier or recorded mail.

Delivery to the UK is £5 for an unframed print of any size.

We will happily replace your order if everything isn’t 100% perfect.

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