Mami's tiro finale: Calculation

[AguilaR101]

During the final battle in the rebellion movie we can see Mami using her strongest attack inside Homulily's city in order to destroy her familiars (which are the size of skyscrapers).



Said attack leaves a huge fireball in its wake as we can see here, the fireball also creates a shockwave that destroys the familiar on the edge of the explosion, so I believe using the some pixel scaling and the nuke calculator to figure out the energy in the explosion should be good here.


http://www.stardestroyer.net/Empire/Science/Nuke.html

Gives me a yield of ~6.5 Megatons for a fireball with a radius of 910m

Which would make Mami's tier 7-B if accepted.

Thoughts?

 

[SomebodyData]

An upgrade to 7-B huh?

This would mean that the PMMM scale would be: 4.5 City level, 6 Unknown, at least City level.

It would also result in an upgrade for Walpurgis, up to At least City level dura, same for her witch form.

 

[CrossverseCrisis]

Sounds cool.

Off-topic but question to SD. Was it said that it's alright to use the PMMM series databook....guide.... thing? I forgot.

 

[SomebodyData]

Its a pamphlet, and yes, espically considering that Gen Urobuchi mentioned it in a tweet and came with the movie in japan

 

[CrossverseCrisis]

Oh aite. @SD

Hmm. We should get the calc team and anyoen whose knowlegable at calcs to look at this. See if they this is legit or not...

 

[SomebodyData]

Alright

 

[CrossverseCrisis]

Okay i sent the message to a few of them/

 

[SomebodyData]

Thanks Cross

 

[CrossverseCrisis]

Thanks Cross

No problem.

 

[Alakabamm]

Can you explain the scaling? I don't see what you are comparing to the explosion in the picture

 

[AguilaR101]

Can you explain the scaling? I don't see what you are comparing to the explosion in the picture

Ah yes, I'm scaling from the wrist of the familiar that was consumed in the explosion, (see the small red line of the one in the middle)

 

[Alakabamm]

Okay, its fine then

 

[AguilaR101]

Okay, its fine the

Nice, thank you.

 

[CrossverseCrisis]

Alright. So Alaka says this is fine, now we gotta wait for a more of the calc members and i guess possibly anyone else that's knowlegable in calcs...

 

[Alakabamm]

Actually, it appears you have used the highest value possible for this...I would at least ground-contact airburst for this (~1.95 megatons) rather than what you have, if not airblast radius near total fatalities itself

 

[CrossverseCrisis]

So a downgrade to about Low 7-B, huh?

 

[AguilaR101]

Actually, it appears you have used the highest value possible for this...I would at least ground-contact airburst for this (~1.95 megatons) rather than what you have, if not airblast radius near total fatalities itself

Ground Contact airbust seems to line up better with the visuals.

Taking this as just the airblast radius seems like a massive lowball for the sake of lowballing, it would assume the whole thing is just air pressure and that doesn't seem to be the case.

Plus there is a a familiar was destroyed even though the explosion didn't directly hit it, so there was definitely an airblast separate from the explosion there. (see shockwave time lapse in my original scaling image.)

Can also be seen here look at the familiar on the right edge as the explosion happens.

 

[LordXcano]

I'll just use Iwan's method for another version of this I guess.

0.8498 Mt = 500m R fireball

910/500 = 1.82

Y = 1.82

1.82^(100/41) = 4.30844

4.30844*849,800 = 3,661,312 Tons or 3.661 Megatons

I don't know the inherit superiority/inferiority of Iwan's method as of now so don't expect quick responses to any questions as to how this method works.

 

[Lina_Shields]

Looking at the explosion itself, it seems like Walpurgistnacht's familiars are standing behind the skyscrapers that are shown at the bottom of the screen.

Thus, the calculation would be more accurate if one were to scale from the buildings shown below instead of scaling directly from the familiar's hand itself.

This is because it looks like the distance of the actual explosion is to be located at the where the buildings at the bottom are.

In short, depending on the height of those buildings, the explosion can potentially yield much higher than the values listed above.

Edit: Will do a recalc later, but notice that the tallest building (the triangular bridge thing) was destroyed by the explosion along with the other skyscrapers below? Perhaps if one could approximate the height of the buildings shown below...

 

[AguilaR101]

Edit: Will do a recalc later, but notice that the tallest building (the triangular bridge thing) was destroyed by the explosion along with the other skyscrapers below? Perhaps if one could approximate the height of the buildings shown below...

I found it nearly impossible to scale the buildings in that particular shot, but different shots suggest the familiars are much larger than I originally scaled them to be.

this one for example shows them being taller than the buildings in the foreground despite apparently being very far from them.

 

[CrossverseCrisis]

Hmm....

 

[Alakabamm]

I'll just use Iwan's method for another version of this I guess.
0.8498 Mt = 500m R fireball

910/500 = 1.82

Y = 1.82

1.82^(100/41) = 4.30844

4.30844*849,800 = 3,661,312 Tons or 3.661 Megatons

I don't know the inherit superiority/inferiority of Iwan's method as of now so don't expect quick responses to any questions as to how this method works.

If you are going to use an equation, why not just look at the source of the page and extract it yourself?

 

[LordXcano]

Because he did not give me a source. I'm not saying the calculation is invalid I'm just saying that's maybe a thing until I learn how it works.

 

[Alakabamm]

Well, my guess is he just extracted the equation from the page itself.

 

[DontTalk]

Hm.. I think near-total fatalities should be used here.

Its the standard.

 

[Austrian-Man-Meat]

I don't really see why this explosion is being treated as a nuclear bomb when both explosions are fairly different

 

[AguilaR101]

The explosion itself resembles the initial fireball of a nuclear explosion and leaves a shockwave.

So this seemed like the best way to calculate it.

 

[Lina_Shields]

Anyways, that explosion displayed on the screen is the actual size of the fireball, and not the thermal radiation energy correct?

Perhaps one can calculate the height of Homulily itself (scaling from Madoka), and then scale that to find the radius of the fireball?

Explosion's scaling seems to be rather awkwardly drawn anyways.

Btw, which part of Homulily's body was Madoka sitting on? If it is Homulily's fingertip I can probably find the ratio of Homu's fingertip to the size of her hands or something.

 

[AguilaR101]

Anyways, that explosion displayed on the screen is the actual size of the fireball, and not the thermal radiation energy correct?

That seems to be the case considering we see a bright flash of light https://youtu.be/dDYnj5V6sOU?t=5m4s before we get to see the 'fireball'.

The scaling from my picture comes from the snake-like thing madoka was sitting on and scaling that to the wrist size of the large familar that was trying to grab it, I think you got confused there.

 

[RavenSupreme]

sadly i have to refrain vom participating here because i am biased AF regarding the verse...sort that our yourself

 

[TheMightyRegulator]

I don't see an issue with this at first glance.

 

[Matthew_Schroeder]

I am okay with either version.

 

[AguilaR101]

So the numbers so far would be

~1.9 Mt,(ground contact burst)

~3.6Mt (Iwandesu's method),

~6.5Mt (assuming minimum fireball radius)

Would it be fine to update her tier to Low 7-B ?

 

[CrossverseCrisis]

So two are Low 7-B, 3rd and last being 7-B? Aite...

 

[SomebodyData]

I do believe Low 7-B (3.6 MT) would probably be the best, yes

 

[Lina_Shields]

Looking at the video again, I noticed that Mami's explosion continued to expand when it was cut to a different scene.

If we are to use the fireball radius for this scene (it looks like a fireball why not), we should put at least "Low 7-B" for the reasons above.

Also, does anyone understand how Iwan's method in regards to this calculation was done? If we cannot understand how the method was done, it's best that we should not use it as any other members that see the method of calculation won't understand it either.

Edit: Looking at the picture in the OP, I would like to know where the OP got the diameter for the familiar's wrist. That scaling picture in the OP seems hard to read.

It is likely that scaling from the buildings is the better option, as shown in the image below. Considering there are skyscrapers in the background (~100m give or take), and Homulily just dwarfs those in terms of height.

 

[AguilaR101]

Let's go with Iwandesu's method, although the diameter of that fireball could be bigger via scaling.

I believe it's good to use this for the time being until we find a better way to scale the size of it.

 

[CrossverseCrisis]

Hmm, fair enough. The result using Iwandesu's method looks like a good mid-ground between the 1.9 MT and 6.5 MT ones...

 

[SomebodyData]

Alright, I'll probably update Mami's profile then