Airy dip circle by Troughton & Simms

Airy dip circle

Troughton & Simms

Fine art poster

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  • Amazing giclée print quality
  • 280gsm thick fine art print paper
  • 100+ year colour guarantee
  • Dimensions:
    • x cm including border ( x in)
    • x cm excluding border ( x in)

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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 & 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.

Airy dip circle by Troughton & Simms zoom

Airy dip circle

A dip circle measures the vertical direction (or dip) in the Earth's magnetic field in the same way that a compass measures the horizontal direction. George Biddell Airy (1801-1892), Astronomer Royal (1835-1881) championed the study of terrestrial magnetism because it improved understanding of the compass and therefore fit in with the role of the Observatory as a compiler of scientific information to aid navigation. Under Airy the Magnetic and meteorological department was established. This dip circle, designed by Airy, and made by Troughton and Simms, replaced the Robinson dip circle and was used at the Observatory until 1915 to take daily readings to find the variations in the Earth's magnetic field at Greenwich.
Troughton & Simms

  • Image reference: d9241-2

Discover more

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