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 |
---|---|---|---|
3677 | 2024-03-23 13:53:04 | 96.19 | 97.9% |
3384 | 2024-03-08 09:30:59 | 95.85 | 97.9% |