this post was submitted on 10 Jul 2025
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Science Memes

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[–] fargeol@lemmy.world 61 points 4 weeks ago (2 children)

Need an explanation? The smallest possible black hole is called a Planck particle. It should have a mass of a Planck mass, a size of an Planck length, should evaporate in a Planck time, releasing a Planck energy.

[–] chortle_tortle@mander.xyz 27 points 4 weeks ago

Ooookay. I feel like I've heard Planck length/time used in other (perhaps wrong) contexts. So the mass and energy seemed wildly large by comparison.

[–] fargeol@lemmy.world 4 points 3 weeks ago* (last edited 3 weeks ago)

By the way, the evaporation of a Planck particule should generate a power of P = Planck energy / Planck time = 3.629 × 10^52 W --> 36.29 million million million million million million million Gigawatts. More than enough to power a time machine.

[–] JillyB@beehaw.org 54 points 4 weeks ago (1 children)

Plank length: usually 10ft for 2x4s. Though, you can get them cut to length.

[–] MagicShel@lemmy.zip 5 points 4 weeks ago

You can what? You mean I can put down this bread knife and just have my house built for me? I think I'll keep my sense of pride and accomplishment, sucker...

[–] sniggleboots@europe.pub 52 points 4 weeks ago (1 children)

I'm having a Planck IQ moment trying to decypher the four lines of distilled aneurysm with which you just presented me

[–] qjkxbmwvz@startrek.website 9 points 3 weeks ago

Yeah it's missing the text, "...then the Planck X would be..." for the first two.

[–] Zuriz@sh.itjust.works 42 points 4 weeks ago (2 children)
[–] LostXOR@fedia.io 4 points 4 weeks ago

Aneurysm posting is my middle name :3

[–] Applejuicy@feddit.nl 1 points 4 weeks ago

I was worried I was alone

[–] Nikls94@lemmy.world 36 points 3 weeks ago (1 children)
[–] pigup@lemmy.world 1 points 3 weeks ago

Truely awful writing.

[–] Crispycrebs@lemmy.world 19 points 4 weeks ago
[–] bitcrafter@programming.dev 11 points 4 weeks ago

I for one like to keep things simple and just express everything directly in units of the number of periods of the radiation emitted by the ground state hyperfine levels of Cesium-133.

[–] apftwb@lemmy.world 10 points 3 weeks ago (1 children)

In my heart, these are the definitions of Planck units.

[–] Tlaloc_Temporal@lemmy.ca 2 points 3 weeks ago

Quick, someone make a heavier Honda Accord and destroy the universe!

[–] UberKitten@lemmy.blahaj.zone 9 points 4 weeks ago (1 children)

is the energy equivalent to what’s stored in the gasoline? or does the car factor in too?

[–] very_well_lost@lemmy.world 21 points 4 weeks ago

10^9 Joules is roughly the chemical energy of a full tank of gasoline. The mass-energy of the car (or even just gas itself) would be many, many orders of magnitude higher.

[–] HylicManoeuvre@mander.xyz 5 points 3 weeks ago

I love how length and time are unfathomably small to even conceptualize, then energy is just like car