Cosmic Exploration · discovery
The Atomic Nucleus
1911 · Ernest Rutherford
- Year
- 1911
Description
Alpha particles fired at gold foil, and about one in eight thousand came straight back — 'as if you had fired a 15-inch shell at tissue paper and it bounced'. The positive charge was a point.
Open on the Cosmic Exploration shelf — the interactive card, the filters, and everything alongside it.