Our lives depend on curbing climate change, but so many priorities seem to be in competition. What's the most urgent thing humanity can do right now? Social entrepreneur James Irungu Mwangi tells us why Africa could be the ideal home for...

Copy editing for The New Yorker is like playing shortstop for a Major League Baseball team -- every little movement gets picked over by the critics, says Mary Norris, who has played the position for more than thirty years. In that time,...

Everybody does it! But why does it happen? Jessi gives you a look at your digestive system, to discover why we sometimes get a case of the burps.

"There's a flip side to everything," the saying goes, and in 2 minutes, Derek Sivers shows this is true in a few ways you might not expect.

In this video Paul Andersen explains how plate tectonics explains the large-scale system interactions on our planet. Large plates float on the mantle and interact to form the major landforms on the planet. Evidence for plate tectonics...

Do you like using your imagination to build things that solve problems? If you do, you're thinking like an engineer! Learn how engineers identify and solve problems, then help Jessi with a big problem of her own!

It’s pretty common to procrastinate before a big exam or an important presentation, and those self-handicapping has to do with protecting yourself from negative feelings.

Paul Andersen describes the important features of the skeletal system. He starts by comparing and contrasting endoskeletons and exoskeletons. He then explains how the human skeleton provides support, movement, storage, blood production...

Howcast - Beat a retreat from a boring party guest – without offending them – with one of these escape plans.

Howcast - Learn how to say "Excuse me" in Japanese in this Howcast video with expert Kanasato.

Howcast - Learn how to apologize in Japanese in this Howcast video with expert Kanasato.

Howcast - Learn how to do the side-together step in merengue from professional dancers Ernesto Palma and Crystal Rodriguez in this Howcast dance video.

Howcast - Check out part 22 of this walkthrough for this action RPG Deus Ex: Human Revolution and sneak through objectives Detroit M11 with this online demo.

Howcast - Learn to turn down an invitation graciously with the right response and enjoy your time by yourself, guilt free.

Howcast - Learn how to say "excuse me" in Korean with this Howcast video lesson.

Howcast - Learn how to order food in Korean with this Howcast video lesson.

Howcast - Learn how to say "excuse me" in German in this German lesson from Howcast.

Howcast - Learn how to say "excuse me" in Russian with this online Russian language lesson from Howcast.

Howcast - Learn how to excuse yourself from the dinner table from manners expert Faye de Muyshondt in this Howcast video.

Howcast - Learn how to say "excuse me" in Italian with this Howcast video.

Howcast - Learn how to say "excuse me" in Mandarin Chinese in this online language lesson from Howcast.

Howcast -Learn how to say "excuse me" in Polish with this Howcast video.

Howcast - Learn how to say "excuse me" in Greek with this Howcast video.

Your nearest and dearest are enjoying newly-wedded bliss, and you're suffering at a table of freaks. It's time to call on your social survival skills.