While we might consider elections to be the cornerstone of democracy, the Athenians who coined the term actually employed a lottery system to choose most of their politicians. Melissa Schwartzberg describes the ins and outs of the...

Several missing with ‘no sign of life’ for hours after New Zealand landslide

After Dark

This video provides an explanation and examples of Newton's third law of motion, also known as the law of action and reaction. The law states that for every action, there is an equal and opposite reaction. The video illustrates this...

This video explains the force of gravity and the concept of being weightless when in orbit.

You will use equations to solve perimeter of quadrilateral problems.

Clark's Botanicals' beauty products were born out of tragedy when company founder Francesco Clark, who then worked at Harper's Bazaar, suffered a crippling spinal cord injury after diving into the shallow end of a swimming pool...

Howcast - Whether you're rooting for one of the teams or just love a contest, a pool will have you cheering.

Howcast - Learn about the highlights of the Tropicana Las Vegas from Sin City expert Mike Myers in this Howcast video.

Howcast - Learn about the highlights of the Palms Las Vegas from Sin City expert Mike Myers in this Howcast video.

Howcast - Learn about the highlights of the Aria Las Vegas from Sin City expert Mike Myers in this Howcast video.

Howcast - Learn about the best clubs in Las Vegas from Sin City expert Mike Myers in this Howcast video.

Howcast - Learn about the best hotels in Las Vegas from Sin City expert Mike Myers in this Howcast video.

Howcast - Learn how to not look fat in a bathing suit with tips from swimsuit expert Candace Draper in this Howcast video.

Howcast - Learn how to pick a one-piece bathing suit from swimsuit expert Candace Draper in this Howcast video.

Howcast - Learn how to arc weld from sculptor DeWitt Godfrey in this Howcast video.

Howcast - Learn five underwater photography tips from commercial photographer Dan Bracaglia in this digital photography lesson from Howcast.

Howcast - Learn important water aerobics safety tips from Dancing with the Stars performer Aubree Marchione in this Howcast water workout video.

Howcast - Learn how to do a water aerobics ab workout from Dancing with the Stars performer Aubree Marchione in this Howcast water workout video.

Howcast - Learn how to do a water aerobics disco arms dance move from Dancing with the Stars performer Aubree Marchione in this Howcast water workout video.

Howcast - Learn how to use a noodle float for water aerobics from Dancing with the Stars performer Aubree Marchione in this Howcast water workout video.

Howcast - Learn how to tread water in water aerobics from Dancing with the Stars performer Aubree Marchione in this Howcast water workout video.

Howcast - Learn how to do water aerobics side kicks from Dancing with the Stars performer Aubree Marchione in this Howcast water workout video.

Howcast - Learn how to jog in a pool with a noodle, weights, and a belt from Dancing with the Stars' Aubree Marchione in this Howcast water workout video.