In recent times, can sound travel through space has become increasingly relevant in various contexts. Can sound travel in space? - Physics Stack Exchange. Sound "information" can travel trough space only if it is converted to electromagnetic waves, or binary data streams, and then back.
Moreover, then reproduced via converting signal to magnetic to physical speaker on a vessel with air to propagate the sound, etc. I learnt in high school that sound was a wave - as an example, you could fix a shoelace at one end and vibrate the other - voila, a wave forms. And then sound kind of moves in the same way through, say, air, because of the slight molecular attraction between individual molecules is enough to create a similar waveform. Why is it said that light can travel through empty space?.
You can see the confusion that arises from the conflicting statements which are commonly heard in physics. In relation to this, the fact that light travels via an electromagnetic field is in clear contradiction to the statement that light travels through empty space. I suppose we could try to join empty space and the EM field into one thing by saying light is the ... Why cannot longitudinal waves travel through space (vacuum)?.
3 'The reason sound can't travel through a vacuum is that sound needs a medium (solid, liquid or gas with real vibrating molecules) and not because it is a longitudinal wave' How does this make sense as there are particles in space which can vibrate. Building on this, can sound wave travel through space? A mechanical wave, such as a sound wave, can only travel through matter because it requires a medium to propagate. Electromagnetic waves, such as light, can travel through both matter and empty space. Why does sound need air in order to travel? I know that in space, because of vacuum that we can't hear voices or sound to be specific, why is that?
Why does sound need a medium to go through? What is the speed of sound in space? With regard to hearing a scream in space, that's not possible.
The highest possible sound frequency in a gaseous medium has a wavelength roughly equal to the mean free path. In interplanetary space near Earth, the mean free path is about one astronomical unit and the speed of sound is on the order of 10 to 100 km/s. The speed of a sound wave can also be affected by the density, temperature, and elasticity of the medium through which the sound waves travel.
Below is a table, we have listed the speed of sound in various materials. What is light, and how can it travel in a vacuum forever in all .... 0 How can light (or electromagnetic radiation) travel through a vacuum when there is nothing there to act as a medium, and do so forever in all directions? For example the light coming from a star millions of light years away. Light is observed as traveling at velocity v=c, according to the second postulate of special relativity.
How do radio waves physically "travel"? If sound waves physically travel by one molecule bumping into another and the chain reaction eventually reaching my ear, how is a radio wave emitted and how does it "move"?
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