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 |
|---|---|---|---|
| 19437 | 2025-11-05 22:28:16 | 172.52 | 99% |
| 19436 | 2025-11-05 22:27:45 | 157.78 | 98% |