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Official Calculations Discussion Thread

So, if we have a feat of a character making a crater, but we only know the crater's depth, I assume we can't make anything out of it?
 
Rikimarox2 said:
So, if we have a feat of a character making a crater, but we only know the crater's depth, I assume we can't make anything out of it?
Click to expand...
You could maaaaaaaybe use the average ratio of depth:diameter of lunar craters (which is anywhere between 0.13 and 0.2 iirc) and work backwards from there but that sounds pretty shaky.
 
That_moron said:
How do you calc temperature of something?
Click to expand...
Same question here.

Basically, there's a special kind of water that can freeze a person instantly, including their blood the moment they touch the water. Is there anyway to calc this, or nah?
 
That_moron said:
When angsizing, should the object be foreground, background or does it matter?
Click to expand...
Doesn't matter. The point of angsizing is to - as it is in the name - get the angular size of the object. Basically a measure of how much of your view it fills, in degrees.
Once you get that, if you know either the size of the object or how far away it is, you can find the other.

I like how I formatted this calc so I'm using it as an example. I found the angular size in degrees, and because you know the size of the object, you can find the distance.
 
Anyone got any idea what type of gun these are modeled after and what their muzzle velocity would be? (And what kinda bullets they use if possible for pixel-scaling purpouses)
 
Dragonite007 said:
How can I calculate this?



Galaxy Dragon creates a mini galaxy and blows it up right away
Click to expand...

Ah that gave me a wave of nostalgia.

Ignoring that, Is the verse even allowed? IIRC, the game itself shut down, no?

Assuming it's allowed, I'd argue you could just outright say they're Tier 3, but if we don't accept it as the real deal, just use the explosion formula worst-case scenario.
 
Creating a galaxy graphic visually about the same size as some dudes wouldn't qualify as Tier 3. I don't know if you could even calculate that.
 
Kachon123 said:
Ground-Explosion formula could work
Click to expand...
It's not on the ground though? I suppose you could count it as an explosion, but it is visually held in the thing's arms.
 
That_moron said:
What is the formula used here?
Click to expand...
tl;dr
it's calculating the energy needed to blow up a constellation the same way we do for stuff like solar system level or galaxy level, inverse square law.
a constellation is picked to use as a reference, and then we say "well this star is the hardest to blow up, so the explosion needs to be at least this strong at the edge"
then you calculate how strong said explosion must be if - at its edge, the weakest part of the explosion - it has the power to blow up said star.
 
That_moron said:
Emkay. Second question,
Br = 0.8632 * Solar Radii = 0.8632 * 6.957 * 10^8 = 6.0052824e+8 m

this part. What is this?
Click to expand...
To quote from the calc:
To plug into our formula of E = 4*U*(Er/Br)^2, where U is GBE of the celestial body, Er is the explosion's radius, Br is the celestial body's radius, and E is energy
Click to expand...
They're calculating the radius of the star at the edge of the explosion.
 
I need some help with converting. When calcs start to reach Sub-Relativistic, the unit is now C right? How do I get that unit from km/h?
 
BreezeHM said:
I need some help with converting. When calcs start to reach Sub-Relativistic, the unit is now C right? How do I get that unit from km/h?
Click to expand...
Little life hack for you: in most browsers, you can do math and basic conversions in your URL bar. Type in something like "800500100 km/h to c" and most will give the result- 0.7417c. That can also be written, in this particular situation, as "800500100 km/h / c", since "c" is just recognized as the speed of light in shorthand.

This works for a lot of figures, including converting joules to tons of TNT equivalent (which is, I think, the weirdest one).
 
Mr._Bambu said:
Little life hack for you: in most browsers, you can do math and basic conversions in your URL bar. Type in something like "800500100 km/h to c" and most will give the result- 0.7417c. That can also be written, in this particular situation, as "800500100 km/h / c", since "c" is just recognized as the speed of light in shorthand.

This works for a lot of figures, including converting joules to tons of TNT equivalent (which is, I think, the weirdest one).
Click to expand...
the alternative is to remember everything (including common powers of 10 and their prefixes) in your head : D
 
SeijiSetto said:
the alternative is to remember everything (including common powers of 10 and their prefixes) in your head : D
Click to expand...
You could also write all of the information you ever learn on a post-it note or some similar small piece of paper, and eat it, thus absorbing the knowledge physically. Regardless, the above is an easy way around such things.
 
Or use your friend and don't bother with all. Speaking from personal experience, 10/10 recommended (share Spotify for better experience)
 
ImmortalDread said:
Or use your friend and don't bother with all. Speaking from personal experience, 10/10 recommended (share Spotify for better experience)
Click to expand...
yeah, and my playlist is better, so we ought to use it next time
 
Question to any calc group members about this feat from Chainsaw Man.

Let's say this feat is calculated at whatever Tons for destroying that building. Do I need to take into account the inverse square law for Denji's durability or not.

Since he took that attack up close and before it destroyed that building.
 
TheRustyOne said:
Question to any calc group members about this feat from Chainsaw Man.

Let's say this feat is calculated at whatever Tons for destroying that building. Do I need to take into account the inverse square law for Denji's durability or not.

Since he took that attack up close and before it destroyed that building.
Click to expand...
(not a CGM)

i would say no since it's not omnidirectional, that's when inverse square law applies
it's focused in one direction and denji tanked it (nearly) point-blank, if anything his dura would be HIGHER due to the fact he likely absorbed some of the impact and it STILL went on to destroy the building
 
I actually think inverse square law can be applied. But only IF the soundwave emitted by the Bat Devil expanded out like that of a flashlight. As inverse square law affects flash lights since the further out the go, the larger of an area they effect. But if it at any point reaches a "maximum size" and doesn't expand out further like a flashlight does, then no. Inverse Square law would not be applicable.
 
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