How do you know when a hand grenade will explode?

Question

The speed of a chemical reaction roughly doubles for every 10 degrees Celsius temperature rise. When you pull the pin on a hand grenade acid is released, eats away a metal wire and a few seconds later the wire breaks and a detonator goes off. So on a hot day in Iraq it should detonate sooner than on a cold day in Chechnya. How do you know when it will explode?

Answer 1

When your hand becomes a stump. ;-)

Answer 2

Chemical fuses are used but many are mechanical, burning fuzes. On the pineapple, lemon, and ball grenade, it is nothing more than a firing pin that strikes the primer that ignites the fuse that burns down into the blasting cap attached at the end. This detonates the high explosive compound used in the grenade body. Many veterans were injured with "short"fuzes or duds. 4-5 seconds would be about the average time.The only reason for waiting on a count is to avoid having someone through it back at you.

Answer 3

You assume the shorter detonation time...so you count 1 one thousand, 2 one thousand, 3 one thousand, and chuck it and duck. It may be a couple seconds later than you anticipated, but you assume the earlier, as you can't afford to be wrong!

The hubs says most go off within 5 seconds.

Answer 4

after pulling the pin and releasing the shaft u have 7 seconds till detonation...cold or hot the time is the same

Answer 5

theres a timer