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 |
|---|---|---|---|
| 5680 | 2025-05-23 20:06:37 | 92.42 | 97.3% |
| 5167 | 2025-04-01 15:24:28 | 96.73 | 97.1% |