I thought I watched a TV programme about transmitting sound waves to Space, so that alien life, if existed out there would know that they are not alone and isolated. Have we had any luck with that?
2007-06-26 06:17:29 · 9 answers · asked by Justbenice 1 in Science & Mathematics ➔ Astronomy & Space
Space is not a Vacuum!!
2007-06-26 06:37:30 · update #1
Sound waves can't go through space, only through air. But radio waves can go through space, and everything we transmit on the radio or TV could theoretically be heard in space if someone was listening. So far nobody's gotten back to us though.
There is a project called SETI, the Search for Extraterrestrial Intelligence. They don't send sound but they listen for radio waves from all over the universe. They've been doing this for several years now but have found nothing.
They record 'noise' from space and analyze it with computers to see if there's anything in it. This takes a lot of computer time. You can download a program that works for them when you're not using your computer. It downloads pieces of this 'noise' and analyses them and sends back the results to SETI. There are thousands of people who do this, and it makes up millions of hours of computer time!
2007-06-26 06:29:21 · answer #1 · answered by Anonymous · 1⤊ 0⤋
First of all, sound waves do not travel in the vacuum of space. Sound needs a medium to propagate through.
Electromagnetic radiation, however needs no such media and we have been transmitting it in the form of radio waves since it was invented. Traveling at the speed of light, like all energy does, our radio transmissions are now about 100 light years out which is in the range of a few dozen star systems.
2007-06-26 06:24:20 · answer #2 · answered by lunatic 7 · 1⤊ 0⤋
Space is very nearly a perfect vacuum, and sound cannot travel in a vacuum. We do not transmit sound waves to the heavens because it is impossible to do so. Instead, we send radio emissions, which are distinctly different from sound waves. Radio waves are electromagnetic radiation and travel at the speed of light. They do not require a medium in which to propagate, as sound does.
2007-06-26 10:38:27 · answer #3 · answered by clitt1234 3 · 0⤊ 0⤋
Waves are disturbances in a medium. These disturbances will cause a force to move ,the particular motion of a force is a wave.Hence there must exist in space a medium of a particular substance that would be responsible for the wave phenomenon. In Space the gravitation Power is not homogeneous. It Conforms to different gravitational Power levels. Therefore in Space there must exist Gravity waves of various frequencies. However because of the range of frequencies that our ears can respond is not within the range of a Gravity wave; thus we cannot hear it. On Earth disturbances in a gas liquid or solid will cause different motion of sound at different velocities and frequencies.Our ears only responds to only a certain range of frequencies. Animals have different range of frequency of audible range. In order for a wave to exist and propagate a medium needs to exist.The Density of the medium determines the velocity of its propagation.Thus Gravity waves velocities are a function of the space power level densities.
2016-04-01 05:27:44 · answer #4 · answered by Anonymous · 0⤊ 0⤋
1) Sound does not propagate through vacuum. Send photons.
2) SETI empirically demonstrates there is no technological civlization within a 50 lightyear radius of Earth.
3) If there were an contactable outworlder civilization advanced beyond ours, who would be so stupid as to tell them we are here? What happened to the New World after the Spanish "discovered" it? It was christ-besotted Spanish psychotic felons against inbred genetic throwbacks. Horses, Toledo steel, greed, and above all disease conquered the New World.
2007-06-26 06:26:46 · answer #5 · answered by Uncle Al 5 · 1⤊ 1⤋
Sound does not travel in space, because there is no medium to carry the compression wave. The show you watched might have been referring to radio waves, which are a certain segment of the electromagnetic spectrum.
2007-06-26 06:21:39 · answer #6 · answered by JLynes 5 · 2⤊ 2⤋
Sound waves don't travel in space.
2007-06-26 06:28:42 · answer #7 · answered by Anonymous · 1⤊ 0⤋
Never heard of it, but it makes no sense... Sound waves need a medium (such as air) to travel through. Space has no medium (or at least very little as you leave the atmosphere).
2007-06-26 06:21:09 · answer #8 · answered by Chris G 1 · 1⤊ 2⤋
Well, yes I know of several alien planet cultures, who are really digging, "I Love Lucy"!
21st Century Man
2007-06-26 06:21:49 · answer #9 · answered by Anonymous · 4⤊ 1⤋