BB84

joined 4 months ago
[–] BB84@mander.xyz 2 points 2 months ago

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)

[–] BB84@mander.xyz 2 points 2 months ago (1 children)

One ton of TNT is 1E9 calories which is 4 gigajoules. So 0.2 petajoules should be only 50 kilotons of TNT?

[–] BB84@mander.xyz 7 points 2 months ago (3 children)

chonk rose 😳

[–] BB84@mander.xyz 4 points 2 months ago* (last edited 2 months ago) (5 children)

Kinetic energy or total energy? Assuming the rose weight 10 grams I get that 1.12PJ total energy, but only 0.23PJ is kinetic.

[–] BB84@mander.xyz 2 points 3 months ago

Image upload fails often as well.

[–] BB84@mander.xyz 3 points 3 months ago

Phonon Spectroscopy

[–] BB84@mander.xyz 7 points 3 months ago (1 children)

And β€œchoose”, of course.

[–] BB84@mander.xyz 3 points 4 months ago

You should upload this as a post!

[–] BB84@mander.xyz 2 points 4 months ago* (last edited 4 months ago)

Yeah maybe shift the X scale by 40 IQ points and it would be more accurate.

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