who published a catalogue of southern stars in 1679, made improvements to barometers, and investigated the optics of rainbows. In 1705 he calculated the orbit of Halley’s comet and in 1718 discovered the proper motion of the stars.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。