Penn and Telller blow the lid of the bottled-water myth

Google Glasses Give Look at Future Mobiles

Another Graphical Multiplication Trick

Worlds Deepest Sink Holes

Massive Solar Flare Eruption

Weed on The Brain

QI - Party Trick With Phone Books

Inflatable Concrete Tent

Never Get a MAC

Dry Ice and Other Experiments

Fast Cooling Airplane Engine

How Risky Are Vaccines?

Ant Death Circles Explained

Supercooled water poured into container

Example of Quantum Levitation

How Small Is An Atom?

DIstance From Earth to Moon

The Caring Bear

How To Launch A Nuclear Missile

The Three Initiatives of Fighting