Who thought British ingenuity was dead!

[doodab]

How long can you output 700W for, is it long enough to heat up a ready meal in the microwave?

Tens of seconds at best.

http://aerosociety.com/Assets/Docs/A...s/HP_evans.pdf

[Mich the Tester]

200W is enough to run a desktop PC or to light your home, the treadmill should use more like 5W surely?

How long can you output 700W for, is it long enough to heat up a ready meal in the microwave?

If you're very fit, maybe a couple of minutes. If you're not fit, a few seconds or maybe not at all. If you're Brad Wiggins, maybe 20 minutes and if you're Lance Armstrong, 3 weeks.

[Mich the Tester]

Actually, just looked it up; Chris Hoy's peak power output was 2483 watts, at the very top of his career and for a few seconds.

[d000hg]

He'd literally cook himself if he lasted any longer at that output!

[xoggoth]

Endothermic reactions etc. Hydrocarbons burn to produce CO2 and water producing X amount of energy. You can't turn water and CO2 back to hydrocarbons without inputting at least that amount of energy.