Before the flight went down, sensors gave conflicting information on air speed to the plane's computers, possibly because of ice.

VOA: special.2009.06.13

While doing his famous "Moonwalk" step, he seemed to be walking backwards on air.

VOA: special.2009.07.05

Other businesses that depend on air travel, including hotels and vacation places,also suffered.

VOA: special.2010.04.23

Dr.Brook, who chaired group that produced a scientific statement on air pollution and cardiovascular disease for the American Heart Association.

VOA: standard.2010.08.04

"You cannot build a foolproof system for air security unless you are willing to slow the whole air system down to a crawl and institute very, very invasive procedures before Americans get on airplanes,".

VOA: standard.2009.12.30

This is clear that this was a mistake,". He added that incidents such as this one are rare, especially after the United States imposed new restrictions on air strikes in an effort to avoid civilian casualties.

VOA: standard.2009.11.07

General Petraeus appeared to be pointedly rejecting suggestions by some analysts, and some officials and members of Congress, that the United States should scale back its ground operations in Afghanistan and focus on air strikes and special operations missions.

VOA: standard.2009.09.23

strategic objective." The defense secretary has given several hints of his views on the way forward in Afghanistan, including a speech earlier Monday in which he cautioned against an over-reliance on air power and high technology, which some officials believe should be used more in Afghanistan, instead of the additional troops the U.S.and NATO commander there wants.

VOA: standard.2009.10.06

"That will not have any appreciable or noticeable impact on the air traffic control infrastructure in the foreseeable future today.

VOA: special.2011.07.11

Air Force pilot Gordon Cooper became an expert on the Redstone Rocket that would launch Mercury astronauts on short training flights.

VOA: special.2009.06.10

As part of the supply effort, the British Royal Air Force even landed Sunderland Flying Boats on a Berlin lake.

VOA: special.2011.08.11

Yet up at about five-thousand-four hundred meters the air pressure is only about half of what it is on the ground.

VOA: special.2011.04.06

On a passenger cruise ship, fresh air is available on decks and in other places above sea level.

VOA: special.2009.07.14

It includes long,thin,red and white rocks that reach high into the air like fingers on a hand.

VOA: special.2009.04.15

They point out that the finding was based on one air measurement taken in an industrial town that is not even in Pittsburgh.

VOA: special.2009.07.13

Girls can listen to programs about women in science at a Web site called Women in Science, Technology,Engineering and Mathematics ON THE AIR!

VOA: special.2009.05.13

Such problems had led Air France to begin replacing older sensors on some of its Airbus planes, but not the one that crashed.

VOA: special.2009.06.13

A spokesperson for the Cruise Lines International Association says other air quality depends on the requirements of the nation where a ship was built.

VOA: special.2009.07.14