Radcliffe Observatory

Thomas Hornsby, the Savilian Professor of Astronomy, was lying on his sick-bed in the Radcliffe Infirmary when he observed a small black disk transiting the face of the sun. It was the planet Venus. The year was 1769. This was a rare and momentous astronomical event. More than that, it was a phenomenon of worldwide significance … Continue readingRadcliffe Observatory

Einstein’s Blackboard

If you like astrolabes, Oxford is the place for you. There are 170 of them in the History of Science Museum. And not just astrolabes. There are also (according to Christopher and Edward Hibbert’s magisterial Encyclopædia of Oxford) ‘armillary spheres, orreries, globes, equatoria, quadrants, sun-dials, instruments of navigation and telescopes’, plus sextants, microscopes and optical devices … Continue readingEinstein’s Blackboard