I'm sure you've heard of Isaac Newton and maybe of some of his laws. Like, that thing about "equal and opposite reactions" and such. But what do his laws mean? And how do they help us understand the world around us? In this episode of...

Mr. Andersen defines Newton's three laws of motion. He describes how the first law relates to inertia, how the second law relates to mass and acceleration, and how the third law allows a rocket to launch.

Weight Distribution! WOW!

This video program compares mass and weight, while illustrating how these are measured. Metric units are used to measure these things using a scale or balance. The video correlates to the Next Generation Science Standard for Middle...

Austin has been asking me to do an episode on bedbugs for quite some time. I've been pushing it off, because I hate bugs. But they're back, and he asked me again, and you can only avoid the pain for so long.

Howcast - Uh, oh. You’re at your front door without a key. If you’ve got a credit card, see if you can get it to open the door before you use it to pay for a locksmith.

Howcast - Learn how to do the Spongebob dance from choreographer Randy Connor in this hip-hop dance video from Howcast.

Howcast - Learn how to do the stanky leg from choreographer Randy Connor in this hip-hop dance video from Howcast.

Howcast - Pushing yourself to be the best you can, and get to know the real you.

Howcast - Let belly dancer Irina Akulenko teach you how to do large hip circles in this belly dancing video from Howcast.

Howcast - Learn who the top b-boys are in this Howcast breakdancing video with choreographer Victor "Kid Glyde" Alicea.

Howcast - Learn how to master your breath in ten minutes a day from vocal coach Cari Cole in this Howcast singing tutorial.

Howcast - Learn the benefits of gymnastics training in this Howcast video with Dulles Gymnastics Academy.

Howcast - Learn how to dance like Lady Gaga from choreographer Matt Steffanina in this Howcast dance video.

Howcast - Learn what NOT to do, like the Mongo Footing, from professional skateboarders Bam Margera and Kerry Getz in this Howcast skateboarding video.

Howcast - Learn how to do the stripper squat dance move from fitness expert Rachel Warren in this hip-hop dance workout video from Howcast.

Howcast - Learn two toe reflexology techniques from certified reflexologist Chantel C. Lucier in this foot reflexology video from Howcast.

Howcast - Learn how to install a bike chain from Silk Road Cycles' Brendon Nicholas in this Howcast bicycle repair and maintenance video, part three of three.

Howcast - Learn how to replace a bike tube from Silk Road Cycles' Brendon Nicholas in this Howcast bicycle repair and maintenance video.

Howcast - Learn how to use powder on Asian skin from celebrity makeup artist Raychel Wade in this Howcast makeup tutorial.

Howcast - Learn how to do the higher level in reggae dancehall from the founders of Str8FramYaad Dancehall Aerobics in this Howcast dance video.

Howcast - Learn the Yoko Geri, also known as the sideways kick, from Sensei Oliver Martin in this Howcast ninjutsu video.

Howcast - Learn how to do a side to side squat in this Howcast workout video about plyometric exercises.

Howcast - Learn how to switch from a heel hook to a toe hold leg lock in this Howcast video about lower body submission techniques for jiu jitsu, judo and mma.