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Re: How Does Light Travel Space And Sound Cannot

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Posted by mathman/">mathman on January 14, 2000 05:06:13 UTC

: : : According to universal theory Big bang happened 20 billion years ago. : : : Galaxy far way from these have been found. : : : Also what about Sound frequencies after the blast they t ravel far slower then light. : : : we should be also able to catch those.Any takers.

: : Your information concerning galaxy ages versus big bang age is incorrect. Sound requires a : : material medium. One elementary science experiment I remember (from 9th grade?) was a noise source inside an inverted glass bowl with a vacuum pump - once the air was pumped out, you couldn't here the noise, although it kept clapping. : : :

: I cannot accept that sound frequencies : cannot travel space and light can. : Can anybody explain.

Sound is simply vibrations of stuff - for example molecules of air - hitting our eardrums. To make the air vibrate, something else (loudspeaker?) must vibrate. In essence, sound transmission requires a physical medium. Light is completely different, and it does not require a medium to transmit. I suggest you et hold of any first year college or even high school physics text.

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