Airy dip circle
Image information
Sizing information
| Overall size (inc frame) | x cm ( x in) |
| Depth | cm (in) |
| Artwork | x cm ( x in) |
| Border (mount) |
cm
top/bottom
(in)
cm left/right (in) |
| The paper size of our wall art shipped from the US is sized to the nearest inch. | |
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
- National Maritime Museum, Greenwich, London, RGO Collection
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We use a 240gsm 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.
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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.
Due to the coronovirus pandemic and Brexit situation, current shipping times may be longer, particularly for destinations outside the UK.
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.
