Scientific advances have gained major momentum in the last century; many of the things seen in science-fiction movies in the past have become ordinary things today.

The Earth currently rotates in a counter-clockwise direction.

Animals can move and even hunt in the pitch-dark of the night.

"Knowing where things are and why is essential to rational decision making." (Jack Dangermond)

Close your mouth and nose tightly. See how long you can stay like this without breathing.

Flying techniques depend on the principles of aerodynamics.

Over the last couple of years, we have heard a great deal about cloning, a scientific procedure that produces an exact copy of a living organism without fertilization.

One day an optometrist was talking to his profoundly-blind patient about the possibility of an eye implant that would give him 16 (4x4) pixels of visual information.