Top Network Posts
- 15When was Zero actually introduced in mathematics ?
- 10What were theories for why and how we see things?
- 8Why should February have 28 days?
- 7When and on what basis was it decided that an hour have 60 minutes and a minute have 60 seconds?
- 7What is the truth behind "The Turk" (the mechanical chess machine)?
- 6Who pitched in the theory of Hollow Earth?
- 6Who invented the integers?
- View more network posts →