30 ms·
The first record in the graph used by the hn-linked article is from 1978. If I'm not wrong this should be the point from which frequent reliable measurements h
by dathinab 6y ago
The first record in the graph used by the hn-linked article is from 1978.
If I'm not wrong this should be the point from which frequent reliable measurements had been taken. (It also roughly matches with my memory about that topic).