01-19-2019, 12:34 PM
|
 |
Senior Member
|
|
Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,556 Times in 22,784 Posts
|
|
Each kernel of popcorn contains a small amount of water, which, when heated, turns to steam. This steam builds pressure. When the pressure reaches about 135 pounds per square inch, the kernel will explode.
|