In this video Paul Andersen explains the differences between a system and an object. Depending on the scale it often times easies to view a system as an object if the constituent parts aren't relevant to the question being asked. He...

There are a lot of stories out there about dogs who seemed to smell lung cancer on their owner’s breath, and a recent study found that some dogs can detect lung cancer in blood samples with astonishing accuracy. So why aren’t there...

Maybe you'd like to just hear about one topic for a while. We understand. So today, let's just watch some videos about Gravity. We'll learn about why we don't fly off into space, what mass has to do with it, how does air resistance work,...

In this episode of Crash Course Kids, Sabrina talks about why things on the bottom of the Earth, don't just fall off into space. Plus... PENGUINS! This first series is based on 5th grade science. We're super excited and hope you enjoy...

In this video Paul Andersen describes motion as the movement of an object over time. Displacement, velocity and acceleration are all defined. An experiment in motion is used to calculate velocity and acceleration of a tennis ball.

Mr. Andersen shows you how write the chemical formula for chemical names.

Not long after drama reappeared in the unlikely home of European churches, the church decided again it didn't like theater. And so, the budding dramatic scene was kicked out into the harsh elements of the outdoors. So, they started...

Mr. Andersen shows you how to name covalent and ionic compounds.

New ReviewThis colorful program investigates the fascinating topic of physical and chemical properties of matter. Numerous real-life examples of properties highlight the many different types of properties. The video correlates to the Next...

The quantum physics of large things: Macro quantum effect. Why don’t tennis balls behave like quantum particles? What happens to a baseball in a double slit experiment? This experiment shows that atoms behave like...

What is this mysterious quantum tunneling effect, where does it come from? And why is it one of the most important phenomena in physics?
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Quantum mechanics shows that quantum objects have a wave-particle...

In the Copenhagen interpretation, which is what is typically taught to undergraduate students, particles are in superposition. What is superposition? In quantum mechanics, there is no equation that states...

When the nucleus was discovered by Rutherford, it became clear the classical world was not reality, because according to classical electromagnetism, the electron should collapse to the proton. This problem was...

Howcast - Don't throw away your old tennis balls. Recycle them using these 7 helpful tips.

Howcast - Sometimes a simple walk can get old for your pooch. Playing games with your dog is the perfect way to get them the exercise they need.

Howcast - Learn how foam rolling can help relieve sciatica pain in this Howcast video featuring certified NYC trainer Amanda Edell.

Howcast - Learn about two tools you can use to massage very tight muscles in this Howcast video featuring certified NYC trainer Amanda Edell.

Howcast - Learn how to foam roll your piriformis in this Howcast video featuring certified NYC trainer Amanda Edell.

Howcast - Learn how to foam roll your wrist flexors and extensors in this Howcast video featuring certified NYC trainer Amanda Edell.

Howcast -Learn how to prevent tennis elbow from tennis pro Angelina Zdorovytska in this Howcast video.

Warm up your pitching arm and be patient—you might just be playing ‰ÛÏThrow‰Û for a while before your dog catches on.

Turn an old tennis ball into a nifty camera tripod in just minutes. Inspired by an Instructables.com <a href='http://www.instructables.com/id/SDMK5MWFDO29GEZ/' target='_blank' rel='nofollow'>project</a>='http://www.instructables.com/id/SDMK5MWFDO29GEZ/' target='_blank' rel='nofollow'>project

Pillows should be washed every three to six months to remove bacteria, mold, and odors. These helpful steps will demonstrate the right way to do it.

Myofascial pain, or pain from muscle knots, affects 1 in 3 people. You can get the knots out using a few simple methods and be able to get on with your day, pain-free.