Hydrogen, helium, ammonia, methane, neon, coal gas and pure nitrogen are all lighter than air. A pocket of air can be made lighter than the surrounding air by heating it. Continue Reading.
Related Questions. 1  Do 2015 Jeep Wrangler Sports have back air vents 1 answer I recently bought a 2015 Jeep Wrangler Sport and I am not sure if it has back air vents or not... If it does I can't seem to find them.
December 14, 2015. If you recoil at the prospect of driving a minivan, the roomiest seven- and eight-passenger crossovers are pretty good substitutes. And if your escape from sliding doors brought you to either the Honda Pilot or the Toyota Highlander, you're on the right path.