September 2008

… small aircraft a few inches across had already been built in America and flown, but these could only stay airborne for a few minutes. His team's work will allow them to stay in flight for longer, but more work is needed to find ways to power them more efficiently.

'Bumble bee paradox' solved - Telegraph

I'm not sure what impresses me more – that nature is so infinitely far ahead of us in certain respects, or that in a scant few centuries we've caught up so much. We can't get close to duplicating the efficiency of nature's machines, but we can get pretty close to duplicating many of their abilities.