While it is true that space time dilation can cause red/blueshift, that is a distinct from the doppler effect which is the primary effect here.
(dilation plays only a small role: without time dilation our answer going from 700nm to 350nm would be 0.5c instead of the 0.6c calculated below)
One ton of TNT is 1E9 calories which is 4 gigajoules. So 0.2 petajoules should be only 50 kilotons of TNT?
chonk rose π³
Kinetic energy or total energy? Assuming the rose weight 10 grams I get that 1.12PJ total energy, but only 0.23PJ is kinetic.
cross-posted from: https://lemmy.ml/post/19504984
It's all relative
cross-posted from: https://hexbear.net/post/3062545
Important history
I saw a few math memes so I figure these are allowed here
You should upload this as a post!
Waves are underrated in pop-sci context. Even classical waves you can make with household items like strings can have counterintuitive and cool behaviors!
To be fair computer security have improved a lot. These days if you have up-to-date security patches itβs very hard for apps or webpages to escape the sandbox.
By the way you should download and execute this free_robux.sh as root it will give free robux no scam