Hamish Jolly, an ocean swimmer in Australia, wanted a wetsuit that would deter a curious shark from mistaking him for a potential source of nourishment. (Which, statistically, is rare, but certainly a fate worth avoiding.) Working with a...

So today, Craig is going to try to get inside the heads of voters by discussing how voters make decisions. Now obviously, like all decision making, voter decisions are influenced by a multitude of factors, but the three we are going to...

You and your team have crash-landed on an ancient planet. Can you appease the three alien overlords who rule it and get your team safely home? Created by logician Raymond Smullyan, and popularized by his colleague George Boolos, this...

In this video Paul Andersen explains how Newton's Third Law applies to all objects. When an object applies a force to another object (Action) and equal and opposite force (Reaction) is applied to the original object. Several scenarios...

People throw out the term "identity politics" as a way to say that someone is wrong, but the truth is, it's something that affects the way all of us vote.

A backyard astronomer holds the world record for most supernovas found by searching manually. He's memorized what over a thousand galaxies look like.

The ability to recognize sounds and identify their location is possible thanks to the auditory system. That's comprised of two main parts: the ear, and the brain. The ear's task is to convert sound energy into neural signals; the brain's...

Raising children is not easy, and parents can get burnt out just like anyone else. But research shows that parental burnout seems to be unique compare to other kinds of burnouts.

Fake news spreads across the Internet like wildfire, and might even spread more quickly than real news!

You might already know that proteins are a fundamental part of your diet, but they're much more than that.

To the average tongue, the color "red" doesn't have a flavor or a smell. But color can affect how we perceive the world in so many ways - including how things taste and smell!

In the penultimate episode of Crash Course Anatomy & Physiology, Hank explains your adaptive immune system. The adaptive immune system's humoral response guards extracellular terrain against pathogens. Hank also explains B cells,...

You've probably seen the pyramidal diagram of Maslow’s hierarchy of needs. It's straightforward enough but, it might be a bit too subjective to really measure human needs.

A new virus emerges and spreads like wildfire. In order to contain it, researchers must first collect data about who's been infected. Two main viral testing techniques are critical: one tells you if you have the virus and the other shows...

In 1928, scientist Alexander Fleming returned to his lab and found something unexpected: a colony of mold growing on a Petri dish he’d forgotten to place in his incubator. And around this colony of mold was a zone completely and...

So now that we know what Properties are, how can we use them to figure things out? In this episode of Crash Course Kids, Sabrina uses them to solve the mystery of what she tripped over last night. This first series is based on 5th grade...

Today we’re turning our sociological eye to another major social institution: religion. We’ll use symbolic interactionism to help us understand the dichotomy of the Sacred vs. the Profane. We’ll compare the perspectives of structural...

New ReviewThis video give instruction and practice with finding the problem and solution with simple and more complex texts.

New ReviewIn this video we will show you how to name alkenes, the organic molecules that contain carbons that are all single bonded to each other! This video is helpful for organic chemistry students at all levels including college and IB chemistry!

New ReviewIn this video we are going over how use the height of an oblique triangle to determine if you have 1 2 or no triangles

New ReviewIn this video we are going to explore how to identify the foci and asymptotes of a hyperbola

New ReviewLets take a look at how to determine if we have One, Two or No Triangles with the ambiguous case. Lets not do it the long way, FAST!

New ReviewIn this video we will explore how to find the vertex of a quadratic from very easy problems to more difficult problems where we have to complete the square

New ReviewUnderstanding the basic characteristics of the identity function such as the domain, range, increasing, decreasing, extrema and if it is even or odd.