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 |
---|---|---|---|
41134 | 2023-10-24 13:28:56 | 105.77 | 97.2% |
40777 | 2023-10-15 13:57:24 | 108.43 | 97.4% |
35782 | 2023-05-07 13:48:01 | 103.41 | 98% |