Experimenting with sound in vacuum
Even though my vacuum chamber is quite basic, now that I have it there is no shortage of ideas to do with it. I once heard the saying that "nobody can hear you scream in space". So I decided to to see if it was true. First I learnt that sound consists of waves of air pressure. That explains why you can't hear sounds in space, because there is no air. Sound waves are longitudinal which means that air particles oscillate forwards and backwards much like a slinky. This is very different to other waves like light where they oscillate sideways like when you shake a string. I also learnt about amplitude and frequency. Amplitude is what defines the how loud the sound is. Whereas frequency determines the pitch, the higher the frequency the higher the pitch is. During my research I learnt about other things like the Doppler effect and how speakers work. A thing I particularly enjoyed was this video from Animagraffs which is one of my favourite channels in YouTube: https://www.you...