[The_Victor]

I don’t think that injury is from a standard firecracker. 1/4 stick of dynamite is more likely.

Yikes!

[Lucky9teen]

Ever wonder how large fireworks are?


While watching fireworks on the Fourth of July, here’s how to estimate how big those bursts of fire are in the sky:

Count how many seconds of time elapse from the instant you see the light from a firework explosion until you hear the sound. Count out loud, "one thousand one," "one thousand two," ... to estimate the number of seconds. (This is the same "trick" to estimate how far away lightning is.)

[absolootezer0]

you’d be surprized how much punch even a tiny one can pack.
try this, take a small firecracker and put it on top of a bottle, set it off.. it’ll scorch a little off the wrapper, that’s about it.
now put it inside the bottle (and get away) bottle will explode. there’s a big difference between setting off an explosive and tamping/ confining it.
this guy prolly had his hand closed around a firecracker.