Invention and Engineering
The Impulsoria was a locomotive constructed in 1850 that was powered via a gearbox by one-two to four horses on a treadmill following a design by Clemente Masserano. It undertook trials in London in 1850 and was exhibited at The Great Exhibition in 1851.
Dredging.
Electrical impedance tomography.
Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.