One way to compute its value is to shine light through a gas-filled container.
Packages covered with a sealed layer of clear plastic are modified-atmosphere packages, which have a gas-filled space inside to help preserve freshness and color.
Unlike a conventional hot air balloon where the height is controlled by a burner, the gas balloons are filled with hydrogen and controlled by releasing gas to go down and throwing out ballast to go up.
This is filled with gas and fine wires, and is permeated by an intense magnetic field.
We love the mobility our cars provide, but keeping them filled with gas has gotten us into all sorts of trouble, and suburban sprawl is a nightmare.
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"I filled up the gas can, I have water, I have peanut butter, and I took the rocking chairs off the front porch, " she said.
That's right -- a congressman who sits on the House Judiciary Committee is talking about a shootout in a dark room filled with tear gas and panicked, innocent people.
The Iraqi declaration is said to lack any explanation for what has happened to certain equipment and arms, such as shells filled with mustard gas, that had remained unaccounted for even when weapons inspectors were last in Iraq in the late 1990s.
He hit on hydrogen sulfide as a potential knockout after watching a television program in 2002 about spelunkers who had to wear respirators when exploring caves filled with the toxic gas.
Geiger counters use an electrically charged wire inside a metal tube filled with methane and argon gas.
But Iraq never accounted for all the 100, 000 chemical weapons it produced for use in the Iran-Iraq war, and there are fears that thousands of them, filled with either deadly VX or mustard gas, could be squirreled away.
John McCain made an unusual campaign stop this week, at a rally for motorcycle enthusiasts whose roaring machines filled the air with the fumes of burning gas.
Car batteries are filled with acid and can give off hazardous hydrogen gas if mishandled.
She made inquiries at the Gas Board about returning to a position similar to the one she had filled in the past, but for the moment there was nothing.
While the headlines are filled with talk of solar, wind and ethanol, the oil and gas industry is quietly gambling billions of dollars that natural gas and its controversial liquefied counterpart will replace oil and coal in the energy economy of the future.
This container is filled with 50kg of liquid argon and a thick layer of the element in its gas form.
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Fracking of oil and natural gas has created, directly and indirectly, more than a million high-paying jobs and has filled entire states, such as North Dakota, Oklahoma, and Pennsylvania, with boom towns, while repairing their public finances.
In the 1963 film, filled with comedy all-stars, Winters stood out as a truck driver who destroys a gas station.
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