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 |
---|---|---|---|
865 | 2023-09-28 13:59:02 | 70.23 | 96.9% |
237 | 2023-08-06 11:03:19 | 71.60 | 97.5% |