# Viewing blog entries in category: Jojo's Bizarre Adventure calcs

• ### Time-stop damage revisited (JJBA)

http://www.narutoforums.com/blog.php?b=21737

I figure this would boost the figures for Dio's and Jotaro's time-stop Oras and Mudas?

http://www.narutoforums.com/blog.php?b=18148

1.0929e11/1.6=68306250000 punches/s

68306250000*25.8=1762301250000 tons/s

Dio's TS is 11 seconds, so...

1762301250000*11=19.4 teratons

Jotaro's is 5 seconds, so...

1762301250000*5=8.8 teratons

Not the most spectacular boost in the world, but hey...
• ### The Speech of Vengeance! Hang the Man with Two Right Hands! (JJBA)

And so continues my series of JJBA calcs.

J. Geil's Hanged Man stand travels between reflective surfaces at the speed of light.

The coin Kakyoin tosses is a British silver penny marked with the inscription Georgivs III Dei Gratia. Why he'd have such an old penny, I don't know, but Wikipedia tells me these guys are at most 14mm in diameter.

Here we see Silver Chariot intercept the Hanged Man millimeters away from reaching the reflective surface of the coin.

(0.014/40.7)14=0.0048m

0.0048/299792458=.016 nanoseconds

Mike's calc tells me that Silver Chariot's head is about .3180656161m. One's arm will generally be 3.5 times the length of his head, give or take.

.3180656161*3.5=1.11323m

Now that swing looks to be a bit more than 90 degrees. I'll just use 90 because I'm lazy like that.

s=theta*r
spi/2)1.11322
s=1.74864m

1.74864/1.6e-11=1.0929e11m/s

This kinda low-balls Silver Chariot's actual movements, considering Polnareff was standing a fair distance away from the Indian dude, but good enough.
• ### The Phenomenal Power of the Red Stone! (JJBA)

Well, you guys asked for more JJBA

Not really gonna go into detail explaining the eruption at the end of Battle Tendency. Just know that some badassery led Jojo II and big-bad birdy Cars to the Tobalchik Volcano.

Kind of superfluous, but I'm gonna calc it anyway.

Alright, so Tobalchik is apparently 3682m above sea level.

(3682/136)61=1651.5

(3682/136)214=5793.74

vcylinder=pi*r^2*h
v=pi*(1651.5/2)*5793.74
v=15029947.27m^3

According to a scientific looking table in my last TTGL calc that I might link later, density for run-of-the-mill lava is 2600kg/m^3.

15029947.27*2600=39077862902kg

CoM is halfway up for a cylinder, I'd assume.

PE=mgh
PE=39077862902*9.8*(5793.74/2)
PE=1109394189308184.052

or about 265 kilotons.

Yeah, didn't satisfy me either

Well, take notice that the scan says this eruption was unprecedented in energy. That'd have to mean that it was larger and more energetic than any documented eruption preceding it.

In 1815, Mt. Tambora erupted with a VEI (Volcanic Explosivity Index) of 7+.

So yeah, the Stone of Aja produced an eruption >800 megatons. And it was said to be unable to actually kill Cars.

Jojo's severed arm survived the eruption to skewer Cars
• ### Joseph avoids castration (JJBA)

I've been coerced into this

Lisa Lisa holds the Red Stone of Aja up to the sun, which magnifies the sun's rays so intensely that they burn through the hull of the ship she and her pupils are on. Jojo and Caesar avoid the ray, the former by jumping over it.

Perspective is fucked up, but meh

In my last blog, I got Jojo's head to be .232m.

(.232/152.61)138=.21m

To have avoided the rays completely without any bodily harm, Jojo would have had to jump high enough for his crotch to be above the ray, lest the Joestar family jewels be vaporized. I realize the ray is on a slope, but Jojo probably cleared it with his legs too, so

(.232/27)56.8=.488m

.488/.21=2.324c
• ### The Ripple Water (JJBA)

Dunno why I'm doing this. Maybe someone can make use of it.

So Messina likes to show off. Just when Jojo learns how to keep water from falling out of an upside-down glass, this ^ (use bro) sticks his finger in the water and sends his ripple through it to have it keep its form. Jojo and Caesar are mesmerized and lean it, only to have Messina release the water which knocks Jojo and Caesar on their asses.

Gonna calc that CoM.

Jojo is 195cm tall.

(1.95/226.8)27=0.232m

(.232/71)27=.088m

(.232/71)30.4=.099m

vcylinder=pi*r^2*h
v=pi*(.099/2)^2*.088
v=0.000677m^3

A little less than that, as the glass has a curved inner base, but good enough.

m=v*rho
m=1000*0.000677
m=.677kg

Height of the panel is 557px.

2atan(31/(557/tan(70/2)))=4.463404034136

d=2.9766m

Eh, just gonna assume that they're at the peak of their arcs. This doubles the distance for a range. However, I'll use that later. Right now, angle.

(.232/31)98=.7334m

Treat this as a triangle to get the angle.

tanA=.7334/2.9766
tanA=0.24639
A=atan(0.24639)
A=13.8414 degrees

Now we go back to doubling that 2.9766m for the range, which gives me 5.9532m.

Plug that shit into the projectile motion calculator and we get initial velocity of about 11.2m/s.

mv=mv
(187*11.2)/.677=3093.65m/s

or about mach 9.1.

Just a tiny bit under hypersonic+. Though, they weren't launched by the entire mass of water. Eh, whatever.