Just received an email today from www.quicktest.co.uk informing about a Radio 4 programme on optics :
Today, 1 March, there was an interesting program on BBC Radio 4 about the history of optics, including the developement of binoculars and telescopes.
You can listen to it on The BBC web site by clicking the following link:
http://www.bbc.co.uk/radio/aod/radi...adio4/inourtime
This will be available until 9am on Thursday 8 March only, after that, the BBC replace it with another program. If you have difficulty with this link, go to http://www.bbc.co.uk/radio4/progs/listenagain.shtml. scroll down to IN OUR TIME and click on LISTEN.
Nearly 4 years later and the BBC link still works!