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.
Yet by sanding the edges off the previous Cruzeâs upright, three-box sedan shape, Chevrolet lowered the roof by 0.7 inch and reduced nearly every major interior measurement save for rear leg- and knee room. Consider it a sort of packaging coup that the car somehow feels more spacious than before.