The Natural Philosopher wrote:
On 24/07/13 11:28, Tim+ wrote:
Jim K wrote:
On Wednesday, July 24, 2013 11:06:34 AM UTC+1, Tim+ wrote:
I want one. ;-)



http://youtu.be/syJq10EQkog



It's a video of a human powered helicopter. A thing of beauty and utter

uselessness. ;-)
he looked f**ked when he landed it!!

Jim K
I think he just ran out of string. ;-).

Interesting to see that the drive was achieved by just reeling in cords, a
bit like spinning four large tops. It must be hard work though considering
he has to lift himself AND the copter off the ground using just his own
power.

Tim
Oddley enough the ultimate energy gained is no worse than say walking upstairs.

Same as walking up stairs carrying a helicopter on your back presumably?

Tim