Complete vacuum may cause the jar to collapse. Also, It's not that easy to have a complete vacuum. More over, you can hear it because the base that bell is sitting on allow the sound waves to pass through it.
@QuantumBoffin also the bell is still in physical contact with some parts of the container, however well sound insulated, so the vibration may travel out via different mediums
Science!
NostalgiaGlasses 3 weeks ago
the vaccum sucked in all sound particles
tf4lyf 5 months ago
Complete vacuum may cause the jar to collapse. Also, It's not that easy to have a complete vacuum. More over, you can hear it because the base that bell is sitting on allow the sound waves to pass through it.
TheBlackSky000 9 months ago
Complete vacuum may cause the jar to collapse. Also, It's not that easy to have a complete vacuum.
TheBlackSky000 9 months ago
this should not be possible, if you got a complete vaccum then you wouldnt be able to hear it because the sound would be lacking a medium
rcboatdriver1234 11 months ago
@rcboatdriver1234 It's probably not a perfect vacuum.
kevinmm20 10 months ago
Can i get my wife into this jar?
PhrostyPhoenix 1 year ago 12
did it died?
woodster2k1 1 year ago
You should have isolated the bell mechanicly also!
Then you really can not hear a thing (almost).
Jer0mmel 1 year ago
it never fails to amaze me how you can make anything appear magical in a vacuum.
euphoriclkmz 1 year ago
i hear it
SpartanG61 1 year ago
Well spotted. The vacuum created is not total - probably around 95% using that particular pump - hence some of the sound can still get through.
QuantumBoffin 1 year ago 4
@QuantumBoffin also the bell is still in physical contact with some parts of the container, however well sound insulated, so the vibration may travel out via different mediums
Saul1T 1 year ago
Fantastic, very useful for my lesson with year 8
AlexLilley 1 year ago