量的结论是:林肯岛在南纬37度线上。如果把计算时不精确的程度估计在内,假设误差有五度,那么海岛的位置一定在南纬35度与40度之间。
cyrus harding then took the instrument which he had made the evening before, the space between its two legs giving the angular distance between the star alpha and the horizon. he measured, very exactly, the opening of this angle on a circumference which he divided into 360 equal parts. now, this angle by adding to it the twenty-seven degrees which separated alpha from the antarctic pole, and by reducing to the level of the sea the height of the cliff on which the observation had been made, was found to be fifty- three degrees. these fifty-three degrees being subtracted from ninety
第66章知识(13/23)