Pressure waves in --- whatever the medium is --- air.
In a vacuum (real empty space), there is no sound.
(See the old gag line for the original Alien movie (in space they can't hear you scream).)
D: Empty space.
He discovered that the atom was mostly made up of empty space.
A vacuum is composed of empty space.
empty space
Yes, all sound is simply a vibration of the particles of matter. In space, where there is not continuous matter, there is no sound.
In space
it was just an empty space but then the creators made something of that space
The emergency sound made by ambulances is produced by a siren.
Tim concluded that all matter is mostly made of empty space because when he studied the structure of atoms, he found that they consist of a nucleus surrounded by electrons orbiting at a distance. The vast majority of an atom's volume is empty space between the nucleus and the electrons, leading Tim to believe that matter is mostly empty space.
The body is made of bones,fat,cells,blood,and atoms. Because of atoms your body is mostly empty space The body is made of bones,fat,cells,blood,and atoms. Because of atoms your body is mostly empty space The body is made of bones,fat,cells,blood,and atoms. Because of atoms your body is mostly empty space
The emptiness of space is made of nothing -- absolutely nothing. There are various particles, chunks of rock, dust and gases, but they are made of matter. The space itself is just space. Lots and lots of space.
Sound cannot travel in a vacuum (empty space) because there is no medium through which soundwaves can travel upon. This is why if you were to scream in space no sound would be made (well except maybe in your mind! ha!) well anyways, that is also why the Star Wars movies, and some other sci-fi movies that have laser fights in space are innaccurate because no sound would be made from the lasers (also because there is no gravity in empty space the vehicles would move much differently...but that is a whole new concept!) Anyways, so sound needs a medium to travel and so far, no medium has been found.... THAT IS LEFT TO BE DISCOVERED!!!! YEAH!!!!