Invention

hospital bed

I came across a reference to electronic paper and tried to work out what this might actually be. For once the wikipedia entry was unhelpful; this not much more so; and this lost me after the first few sentences. I must say, I can’t quite see its use - apart from securing a place in the quirky inventions gallery alongside author Margaret Atwood’s gadget for remote book-signing (the LongPen) and this from BoingBoing Gadgets – the Bible-writing robot!