Real Gases: Crash Course Chemistry #14

Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms and molecules take up space and for pressure because they're attracted to each other; that Einstein was behind a lot more of what we know today than most people realize; and how a Dutch scientist named Johannes van der Waals figured out those correction factors in the late 19th century and earned a Nobel Prize for his efforts.

Hank Green and Vi Hart on Being Weird

I found this month's old conversation while cleaning off my hard drive. I didn't remember it at all, and I thought it was awesome, so I wanted to share.

I completely forgot who is holding the Camera, but also included in the conversation is Mitchell Moffit of ASAPScience. This was filmed after-hours at a conference YouTube put together for people who make educational videos.

It's hard to hear in spots, but Vi does indeed say "I would /invent/ a dance floor" at one point.

Animals Interrupt Sporting Events

Animals Interrupt Sporting Events: A Critical Analysis

In which John discusses adorable animals interrupting sporting events, including such hits as Dog Pooping on Baseball Field, Goalkeeper Dog Catcher Fail, Pine Marten Invades Swiss Soccer Match, Drug Dog Wants to Play, Anfield Cat, and Squirrel at the US Open. It's kind of a weird video.

Disney, Fanart, and Copyright

Post about Katie's design on my Tumblr:

SciShow: A Cure for Virus Villains?

Viruses are among humanity's greatest threats and it seems like they're always one step ahead of us. But this week, biologists say that they've discovered a new weapon we can use against some of our most nefarious virus enemies - and it comes from our friends the plants.

Viking Sunstones and Mummy Health Secrets

Today on SciShow news, dead person wisdom is helping enrich our understanding of the natural world - how did Vikings manage to be such awesome navigators? And is heart disease inherent in human beings? Scientists think mummies may have the answer.

Richard Feynman, The Great Explainer: SciShow

Aside from being a great scientist and teacher, Richard Feynman was a kooky and curious guy who played the bongos, painted, and did math in strip clubs. Hank shares his Feynman love fest with us in this episode of SciShow: Great Minds.

Top 25 Life Hacks of Reddit

The 25 Top Life Pro Tips!

Individuals shared them, the collective intelligence of Reddit sorted and vetted them, all Hank did was make a video putting them all in one place.

Crash Course: 5 Human Impacts On The Environment

Hank gives the run down on the top five ways humans are negatively impacting the environment and having detrimental effects on the valuable ecosystem services which a healthy biosphere provides.

53 Terrible Jokes!

As told by Hank Green.

They're not actually terrible, most of them are actually pretty dang funny. Thanks to all the people who suggested jokes via Twitter (THERE WERE A LOT OF YOU!) these pretty much exclusively came from that search.

Crash Course Ecology: Predators

Community Ecology II: Predators - Crash Course Ecology #5

Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.

CrashCourse Ecology #3: Human Population Growth

If being alive on Earth were a contest, humans would win it hands down. We're like the Michael Phelps of being alive, but with 250,000 times more gold medals. Today Hank is here to tell us the specifics of why and how human population growth has happened over the past hundred and fifty years or so, and how those specifics relate to ecology.

The History of Life on Earth: Crash Course Ecology

Hank Green debuts a new Crash Course Series on the topic of ecology. Episode #1 gives a
quick overview timeline from the formation of the planet Earth through abiogenesis, the Oxygen revolution, the development of eukaryotic organisms, on through to the now.

With a solid understanding of biology on the small scale under our belts, it's time for the long view - for the next twelve weeks, we'll be learning how the living things that we've studied interact with and influence each other and their environments. Life is powerful, and in order to understand how living systems work, you first have to understand how they originated, developed and diversified over the past 4.5 billion years of Earth's history. Hang on to your hats as Hank tells us the epic drama that is the history of life on Earth.