And lastly for today

SciDev.Net reports a Vietnamese doctor who has built his own endoscope for substantially less than the cost of a ready made one. Nguyen Phuoc Huy bought a microscope for $800, built a system of lenses linked to a webcam, for $30, and linked the whole thing to his computer. He taught himself computing, optics, and the maths required to do this, and can now build the endoscope in a week. SciDev.Net picked the story up from the BBC World Service's Go Digital programme and there is a link to the BBC Online site for more details.