FORMER NASA astronaut and moon-walker Dr Edgar Mitchell - a veteran of the Apollo 14 mission - has stunningly claimed aliens exist. And he says extra-terrestrials have visited Earth on several occasions... more inside

Ferrofluid is a magnetic liquid. It is composed of tiny nanoparticles of magnetic material. It flows like a liquid and attracts to a magnet.

Dry Ice has nothing on this. Mentos and diet coke doesn't come close. This is liquid nitrogen. Liquid nitrogen explodes a soda bottle in just a few seconds. Enough to send a bucket a few hundred feet into... more inside

The heating of water in the microwave can actually be dangerous. Water can be superheated if there is no imperfection for the bubble to form on.