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Exploding Hot Glue Gun – How PTC Heaters Actually Work

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...
Today I Found Out on MSN

How the Hiroshima Bomb Worked Like a Gun

The atomic bomb dropped on Hiroshima in 1945 wasn’t just powerful - it was built with a design as simple as a gun. Known as ...