http://www.narutoforums.com/xfa-blog-entry/hulks-transformation-speed.17934/
Hulk's transformation speed
Published by Endless Mike in the blog Endless Mike's blog. Views: 46
Yep, another Hulk calc. This time how fast Banner was able to transform into the Hulk.In this story arc Deadpool, finally fed up with life, figures that maybe the Hulk is powerful enough to kill him for good, so he does several things to provoke him, including planting a nuke in Banner's car. It goes off, and Banner manages to transform before being vaporized:
Now I'll be using the nuclear detonation velocity I found for my Anthrax calc (figure this is also applicable since we're talking about something right next to the detonation, so if anything it would even be faster than this) of 15,240 m/s.
Now as for the distance, he had to transform before the explosion hit him, which would mean the bottom of his feet in the car. I searched but couldn't find any information on the distance from the floor of a car to its underside, so what I did was actually take a tape measure and measure the distance on my own car (probably the most real-world dedication anyone has put into one of these calcs yet, lol). I came up with 14 cm. Now this is not going to be exactly the same, since they are different vehicles, but it's the best I have.
A 15,240 m/s shockwave would cross 14 centimeters in 0.000009186351706 seconds.. This is how fast Banner was able to transform into the Hulk.
The images are broken but I'm assuming they're from Deadpool vol. 2 #37, particularly this scene:
The third scan arranges the panels in such a way that Banner realizes the situation before Deadpool presses the button, and we don't know how much time actually elapsed.
Another problem with the calculation is that it relies on an inaccessible reference. Furthermore, the propagation velocity—both of the reflected over-pressure and the blast—varies from nuke to nuke; depending on the nuclides used, the mass and the fission trigger but even when you account for all of that then there's a probability offset pertaining to the early stages chain reaction that can't be accounted for. If you're interested in the process I'd recommend Harold Brode's (PhD Cornell University 1951) article Review of Nuclear Weapons Effects in Annual Review of Nuclear Science (1968).
Detonation velocity means the velocity at which the detonation propagates through the detonating substance itself. I.e. if you had a long metal cylinder filled with dynamite and you ignited it from one end then the detonation velocity would be the speed at which the explosion front travels through the cylinder. The shock wave in the surrounding air around the explosive device propagates at much lower speeds (which quickly settles down to the speed of sound in air).
Originally posted by Magnon
Detonation velocity means the velocity at which the detonation propagates through the detonating substance itself. I.e. if you had a long metal cylinder filled with dynamite and you ignited it from one end then the detonation velocity would be the speed at which the explosion front travels through the cylinder. The shock wave in the surrounding air around the explosive device propagates at much lower speeds (which quickly settles down to the speed of sound in air).
