GranTeCan
On Friday I showed another group of tourists around the William Herschel Telescope. Afterwards they were going on to GranTeCan, which is the huge telescope the Spanish are building at the Roque (see Thursday, July 26, 2007). I managed to tag along and finally see inside. I’ve seen a lot of telescopes, and I knew it was huge, but I still wasn’t prepared for the sheer size of the thing.This…