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 |
---|---|---|---|
6317 | 2023-12-24 23:54:30 | 86.74 | 97.9% |
6031 | 2023-11-01 06:08:38 | 91.02 | 97.2% |