"Christian McArdle" wrote
| I've got a New World Royale 600 gas cooker with a self-lighting
| oven - you turn the gas on and the sparker clicks away until
| the oven lights.
| First, how's it do that then?
| Hardly rocket science.

Presumably there must be a similar mechanism on rockets to ignite them? I
can't see NASA sending out for some two-furra-pound gas lighters every time
they want to do a launch.

Owain