Invention and Engineering
The Dorrigo Steam Railway and Museum in Dorrigo, New South Wales, Australia is a large, privately owned collection of railway vehicles and equipment from the railways of New South Wales, covering both Government and private railways. The collection dates from 1878 until 1985.
Harvard Mark I.
History of wind power.
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.