But in the western United States, there are highways where the speed limit is one hundred twenty-five kilometers an hour.

VOA: special.2010.04.26

At the end of the test flight,the speed of the Apollo spacecraft was increased to forty thousand kilometers an hour.

VOA: special.2009.07.08

It enables the user to control the speed and sound levels of orchestral music playing on a computer.

VOA: special.2011.05.11

Super-fast Internet connections let people watch movies and send huge amounts of information at the speed of light.

VOA: special.2010.09.01

The first plane ever to fly faster than the speed of sound was the X-1 in nineteen forty-seven.

VOA: special.2010.07.07

The team made the discovery by measuring the speed at which our galaxy is moving through space.

VOA: special.2009.01.20

It involves the relationship of energy, mass and the speed of light, written as the letter c.

VOA: special.2010.07.16

In June,the Speed Sisters became the first all-female racing team to compete in the Speed Test, a popular race in the West Bank.

VOA: special.2010.07.30

The large number of sails the Flying Cloud could carry increased the speed of the ship.

VOA: special.2009.12.23

The observations also showed that the speed was linked directly to the galaxies' distance from Earth.

VOA: special.2009.04.29

Didier Vermeulen of France sent us this one: "It does not matter the speed you go.

VOA: special.2009.03.01

The Speed Sisters received money from the British Consulate in Jerusalem to buy a race car.

VOA: special.2010.07.30

Air France is now moving quickly to put in newer versions of the speed sensors.

VOA: special.2009.06.13

The American buffalo could run at the speed of almost seventy-five kilometers an hour.

VOA: special.2009.02.15