The term black hole is of very recent origin. It was coined in 1969 by the American scientist John Wheeler as a graphic description of an idea that goes back at least two hundred years, to a time when there were two theories about light: one, which Newton favoured, was that it was composed of particles; the other was that it was made of waves. We now know that really both theories are correct.
Game | Time | WPM | Accuracy |
---|---|---|---|
5879 | 2024-01-06 21:34:48 | 118.89 | 98.6% |
5262 | 2023-09-09 13:41:47 | 101.45 | 96% |