Note 73 — Chapter III
Reading edition
This number 1210 represents the significant figures of √106·84, 6·84 metres being the correction given by 1 − k2rd2 for a distance of ten kilometres.
Reading edition
This number 1210 represents the significant figures of √106·84, 6·84 metres being the correction given by 1 − k2rd2 for a distance of ten kilometres.