Welcome to the coolest Music Video Challenge of summer 2008! Open to filmmakers across the world! Simply visit www.theA3F.net and register today! Challenge is open from July 1 - August 15. And help select the winning videos by visiting this exclusive channel here on Vuze.com. Your votes and...

Inspired of the most mythical race of the history of cross-country, OUTBACK-CHALLENGE MOROCCO is a unique trip in its kind, a future standard. Based on crossing and the endurance, this challenge is done primarily of except track and by teams. The very high level of difficulties, through the...

Albert Einstein is one of the world's most recognizable geniuses. But was his brain any different from that of an average person? Check out this HowStuffWorks podcast to learn more about Thomas Harvey, the man who set out to decipher Einstein's brain.

Snowboard. Results of the Arctic Challenge 2005.

Tim takes on the corporate challenge.

Brain Workout - Brain Training for PC

Speet Challenge mode of Need For Speed ProStreet

Researchers studying the brains of toddlers say the strength of their brain waves can indicate language ability. The research might lead to early identification of language impairment.

Khan Academy content on Brain Teasers.

Of all the challenging ways to play Legend of Zelda that people have attempted on a NES console, one of the most famous is the "swordless" challenge. In this challenge, the player must beat all of the game, up until the final boss Ganon, without using a sword. It is not possible...