We all talk about the big bang as this moment the Universe begins by popping into existence with simple hydrogen and some helium. Hydrogen and Helium are gases that are able to carry sound. Today, space has expanded so much that there is vacume beyond where matter clumps together to form stars/planets, which means the sound couldn’t propagate, but the early early Universe wouldn’t have clumped like today; there would have been hydrogen everywhere. This means it would have been loud everywhere.
*Edit: I know we call it the Big Bang because of the rapid expansion of spacetime, but I always just pictured the general motion of expansion as the “bang”. Never thought of how loud it would have been.
If a tree falls in the forest and there’s nobody around to hear it, does it make a sound?
Some argue it does not, since sound is. An interpretation of pressure waves in a particular frequency range.
I personally believe it’s still sound. Even if it’s not heard, it can be recorded and replayed, therefore any time there are pressure waves within specific range they should be considered sound. If you play music on the radio and nobody is listening, it makes a sound, but if you transmit it only using AM/FM it does not make a sound.
Having this definition down, yes, it must have been one Hell of a bang, but so what?
Maybe how sound waves collided influenced how matter clumped?
Maybe the soundwaves colliding is one of the many reasons for these:
That you can perceive, if something else can … is it then sound?
Depends how you define sound, i just wouldn’t count electromagnetic waves as sound, only pressure waves.