48 Woke Titan submarine found in pieces (www.youtube.com) posted 342 days ago by dnile1000bc 342 days ago by dnile1000bc +48 / -0 28 comments share 28 comments share save hide report block hide replies
I'm resisting the urge to do my high school science teacher act here, but a perfect Carnot heat engine would use just the ~20% oxygen in air as fuel. Fire pistons can create a flame using just air.