剑桥大学Cambridge
The story of how the 'longitude problem' was solved - a conundrum so complex that even Isaac Newton doubted it could be done - is now freely available to everyone via the Cambridge Digital Library. 🔗 网页链接 展开全文The entire archive of the Board of Longitude has been made freely available to everyone online at: 🔗 网页链接 The drawing here is one of the schemes that didn't make it! 转发 1评论 0 原微博