No other placental mammal that we know of prefers one side of the body so consistently, not even our closest primate relatives. But being right-handed may have deep evolutionary roots in our lineage. And yet, being a leftie does seem to...

How do you tell a plane from a bird? The vertical tail, of course! By why can birds fly without a vertical tail, and how do planes use their vertical tails to stay in the air?

In Colchis, the hide of a mystical flying ram hangs from the tallest oak, guarded by a dragon who never sleeps. The only way Jason can pry it from King Aeetes' clutches and win back his promised throne is by facing three perilous tasks—...

That asteroid the headlines have been warning people about isn't likely to actually hit us, and scientists might have solved a mystery that could save lives: the relationship between tides and earthquakes.

How do you engineer stealth? Sneak a peek at the methods employed to hide aircraft and boats from detection.

A freshly-mopped floor is slippery, but a wet shirt is super-clingy... so what's the deal? Why can water make some things slick and other things sticky?

Airplanes use a lot of fuel, which means a lot of CO2 emissions. So, to help reduce the impact of aviation, engineers are looking to animals (like sharks) for some ways they can make airliners more efficient.

Winter: It's that time of year when you're out for a stroll and maybe miss a hidden patch of ice and fall flat on your butt. Why you gotta play us this way, ice?

What's better than slipping and sliding in your backyard on a hot summer day? It's so much fun! But, how does this fun happen? It has a little something to do with friction!

Do you really need a daily shower to stay clean, or is it doing more harm than good? Some scientists have recommendations based on what we know about our skin , and what might be living on top of it.

Explore cultural tips and etiquette for visiting people’s homes, especially when it comes to shedding your shoes and wearing guest slippers. Learn more about local practices for house slippers, toilet slippers, and even garden slippers....

Howcast - Learn how to create a high ponytail with this Howcast hair tutorial featuring celebrity hairstylist Jacqueline Bush.

Howcast - Learn how to do a noseslide from professional skateboarders Bam Margera and Kerry Getz in this Howcast skateboarding video.

Howcast - Learn how to counter a cross from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn slip basics from Team Radical MMA head coach Rene Dreifuss in this Howcast MMA video.

Howcast - Learn how to defend yourself against a slap punch from Alliance MMA black belt Babs Olusanmokun in this Howcast Brazilian Jiu Jitsu video.

Howcast - The key to looking sexy in a strapless frock? A flawless fit.

Howcast - Learn how to do a linen stitch in this knitting tutorial from Howcast.

Howcast - Learn how to do a slip stitch in this knitting tutorial from Howcast.

Howcast - Learn how to do a double yarn over in this knitting tutorial from Howcast.

Howcast - Learn how to do a backwards loop cast-on in this knitting tutorial from Howcast.

Howcast - Learn how to do ribbing in this knitting tutorial from Howcast.

Howcast - Learn how to make chandelier earrings with briolettes with this Howcast video about how to make jewelry.

Howcast - Learn how to put a dog collar or harness on a puppy and make sure it fits from dog trainer Robert Haussmann of Dogboy, Inc. in this Howcast video.