Bringing to Light , or Bringing to Life
Oxygen
Of course.
ah yes, the classic which gas is in which test tube experiment... Oxygen accelerates the combustion of organic material. The wood splint will burn more brightly and quickly if placed in oxygen. If the splint is 'blown out' leaving only a glowing tip it will reignite when placed in oxygen.
Can't tell, 'cause water doesn't burn. Water is totally oxidized hydrogen. It is essentially hydrogen "ash". Just as you cannot reignite the ashes from a fire you cannot re-burn water after hydrogen is burned with oxygen to water.
The glowing splint will relight if you place it in a flask with oxygen. Scientists do this as a test for oxygen so if it relights, then that means the flask contains oxygen.
Guzzle Puzzle Junior
Pennsylvania
stuff
Oxygen
Of course.
Just be yourself
The most likely way to reignite fusion in a white dwarf is for gas from a close binary companion to be pulled to it by gravity. As the gas collects the white dwarf heats up and may either ignite fusion in the hydrogen or in the carbon of the white dwarf itself.
Carbon dioxide drifts away, and the hot embers reignite.
A smouldering piece of wood (like a bamboo skewer) will reignite in the presence of pure oxygen.
You can't control anyone but yourself, but there are tips to reignite the fire.
Correct as they may not displace enough O2 to put the fire out-causing it to reignite.
There should be a sticker on the boiler or the gas valve telling you how to relight your particular model.