What would Immanuel Kant say about a fender bender? In a surprisingly funny trip through the teachings of some of history's great philosophers, TV writer and producer Michael Schur (from hit shows like "The Office" and "The Good Place")...

Mr. Andersen describes the two portions of the AP Biology Test. Tips for answering multiple choice and free response questions are included. Sample questions from old AP tests are also included.

Unlike lots of other animals, there’s no such thing as the “mating season” for humans, and it might have to do with how we raise our kids.

In this video Paul Andersen describes the new AP Biology Exam. This exam will be given for the first time in May of 2013 and will be different from all previous exams. In this video Paul Andersen describes the scoring and the two parts...

Want to learn more about the topic in this week's video? Here are some key words/phrases to get your googling started: - Lifting Condensation Level (LCL): The altitude at which the water vapor in rising air begins to condense - Adiabatic...

Still wondering why leaves are green and not purple or even black? CHLOROPHYLL! It's how leaves work.

While period cramps are never fun, they can actually be debilitating for those with endometriosis - a disease where rogue uterine tissue turns up in places that it doesn’t belong. Like in other areas of the pelvis… or even in the lungs...

Today's oceans are full of fish with fins that couldn't evolve into limbs like ours. So, who are our ancestors and where did they go?

Paul Andersen explains how to formulate questions to guide discussions and investigations. He starts by describing the proper type of questions that should be asked in an AP Biology classroom. He gives four examples of questions that...

In this video Paul Andersen explains how his new video series for AP Physics 1 & 2 will be organized. He hopes to have the entire video series completed by this fall.

Paul Andersen explains the two major portions of the molecular biology lab in AP Biology. He starts by discussing the process of transformation. He explains how you can use the pGLO plasmid to produce glowing E. coli bacteria. He then...

A monitoring system developed to listen for secret nuclear tests mostly hears other events happening all around Earth.

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If you've never had a migraine, you might think it's just a really bad headache. But if you've ever had them, or you know someone who does, you know that they're much worse -- and much more complicated -- than that. Hank explains the...

A key part of treating a disorder, is identifying what it's not. It turns out what we thought was one form of dementia may be multiple problems.

The animated GIF has had a long and fascinating history, but the GIF took a giant leap forward this year when it became part of the 2012 Presidential Election!!! This election season, GIFs of Obama, Romney, Biden and Ryan, populated not...

Diabetes has a history dating back to Ancient Greece. Our treatment of it, however, is more recent and was originally made possible with the help of man's best friend. Due to physiological traits shared with humans, dogs have saved...

Howcast - Learn how to flirt with your wife in this online flirting lesson from Howcast.

Get ready to crush the AP Physics 1 exam with this complete 30-minute review of the entire course! This video covers every major topic from Units 1 through 8, including kinematics, dynamics, energy, momentum, rotation, harmonic motion,...

Power Series | Power Series & Interval of Convergence: Example 3

Howcast - Learn how to do a tsuki kage block from Sensei Oliver Martin in this katana sword fighting video from Howcast.

There are telltale signs of bad leadership. We look at 9 qualities of bad leaders from Johnson and Hackman's book on leadership.

In this video, we talk about the process of generating a story for manga or comics, discuss the importance of having a central idea or theme and building the story around it. It also explains how to develop characters, create plot twists...

Botswana's Okavango Delta and the Makgadikgadi Salt Pans are two ends of a 360-mile round trip zebra migration, the second longest on Earth. In this animation, shades of red show dry areas, green represents vegetation, and the dots...

NASA historian Jennifer Ross-Nazzal shares some of the lesser-known stories of the Apollo 11 mission 50 years after the historic landing of humans on the Moon. Alumni from NASA's Apollo program share memories from their unique roles in...