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submitted 2 months ago by [email protected] to c/[email protected]

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It's all relative

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[–] [email protected] 17 points 2 months ago (12 children)

How fast would the rose have to be going to blueshift that much? Someone please do the math

[–] [email protected] 23 points 2 months ago (6 children)

For a shift from about 700nm to 350nm: coming right at you at 0.6c

It would also have a kinetic energy of about 1.1234 Petajoules, on the order of magnitude of the Tsar Bomba

[–] [email protected] 3 points 2 months ago* (last edited 2 months ago) (1 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.

[–] [email protected] 8 points 2 months ago (1 children)

In hindsight I was a bit generous with the weight, I assumed 50g

[–] [email protected] 7 points 2 months ago (1 children)

chonk rose 😳

[–] [email protected] 2 points 2 months ago (1 children)

Only 10MT instead of 50 then?

[–] [email protected] 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?

[–] [email protected] 2 points 2 months ago

A fart in the wind next to the Tsar Bomba. My disappointment is immeasurable and my day is ruined.

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