Why Doesnt Sound Travel through a Vacuum?

Answer

The reason sound cannot travel in a vacuum is due to the fact that sound waves transfer energy through molecules of gases as a mode of travel and in vacuums there are no gas molecules. This manner of travel is due to the fact that sound is a mechanical vibration.
Q&A Related to "Why Doesnt Sound Travel through a Vacuum"
Light. does. travel through a vacuum.
http://wiki.answers.com/Q/Why_doesn't_light_travel...
It is possible for sound to travel through water. Sound does make its way through but it's properties can distort and muffle the sound.
http://answers.ask.com/Science/Physics/how_does_so...
Some comments: "Vacuum" literally means, a space containing nothing. Vacuum in that sense does not exist inside a vacuum cleaner, but then it also doesn't exist anywhere
http://answers.yahoo.com/question/index?qid=200906...
Sound is a waveform that travels through matter. Commonly associated in
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Sound cannot travel through a vacuum. This is because in a vacuum, there are no molecules as well as particles to propagate the vibrations of sound waves. Generally ...
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