However, “the costs and risks of a private initiative to develop the systems needed for successful asteroid mining are simply too high and … government participation … is required …” (Blair, 2000). However, the costs of exploiting mineral resources on near-Earth asteroids other than the ...
He found that he himself had to supply all the instruments at Greenwich, apart from a few gifts; he was forced to take private pupils to augment his income. A small inheritance from his father, who died in 1688, provided the means to construct a mural arc, a wall-mounted instrument for...