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