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.
Its city/highway/combined fuel consumption is rated at 19/28/22 mpg and it carries a sticker price of $44,855. The tested Chevy Traverse AWD LTZ crossover has 151 cubic feet of passenger space, or 19 less than the Odyssey. Cargo space behind the third row measures 24 cubic feet, or 14 cubic feet less. That gap is substantial, about the size of a trunk on a mid-size sedan. The Traverse has a 288-horsepower V-6 engine with a six-speed automatic transmission and 16/23/19 mpg.