21 January 2014
Surprisingly, perhaps, the age of brass and hardwood is not that far back in history. These two historic instruments, on display in UCL Physics & Astronomy, are less than a century old, yet they look like they come from a totally different age.
Above is a large demonstration model of a galvanometer (a device which measures electric current), with over-sized parts and a glass window to make them easier for students to see during classes. It was built around 1920.
Below is a mid-20th century manometer, a type of pressure gauge.
The upper attachment contains a small glass window (facing away from us in this photo, but visible in this close-up) through which readings would be taken.
Photo credit: Oli Usher (UCL MAPS), acknowledgement: Jim Grozier (UCL Physics & Astronomy)
High resolution image
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