SciShow
Does Deep Space Cause Heart Disease?
A bizarre lonely star grows brighter, and we investigate a study that looks at whether astronauts that leave the magnetosphere have higher incidences of heart disease.
SciShow
Is Sitting Too Close to the TV Really Bad for You
It may be antiquated now, but the old pearl of wisdom: “Don’t sit too close to the TV” was good advice in the 1960s
TED Talks
Sex, drugs and HIV: Let's get rational - Elizabeth Pisani
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Armed with bracing logic, wit and her "public-health nerd" glasses, Elizabeth Pisani reveals the myriad of...
Crash Course
The Dawn of Video Games: Crash Course Games
Over the next few episodes we're going to talk about the history of video games. Today, we're going to start with the first re-programmable computers in the 1940's. Now, these computers were serious tools. They were for codebreaking and...
Bozeman Science
Electrochemical Gradient
In this video Paul Andersen explains how the electrochemical gradient is a combination of the chemical and electrical gradient of ions. As ions move across a membrane the potential change creates a hidden force that isn't always apparent.
SciShow
Why Is Being Underwater So Peaceful?
After nailing that sweet triple gainer into the pool you may have noticed something: being underwater is very peaceful, thanks to a reflex we share with all air-breathing vertebrates.
TED Talks
Derek Sivers: How to start a movement
With help from some surprising footage, Derek Sivers explains how movements really get started. (Hint: it takes two.)
TED Talks
Elizabeth Lesser: Take "the Other" to lunch
There's an angry divisive tension in the air that threatens to make modern politics impossible. Elizabeth Lesser explores the two sides of human nature within us (call them "the mystic" and "the warrior”) that can be harnessed to elevate...
TED Talks
Lucien Engelen: Crowdsource your health
You can use your smartphone to find a local ATM, but what if you need a defibrillator? Lucien Engelen shows us online innovations that are changing the way we save lives, including a crowdsourced map of local AEDs.
TED Talks
JP Rangaswami: Information is food
How do we consume data? At TED@SXSWi, technologist JP Rangaswami muses on our relationship to information, and offers a surprising and sharp insight: we treat it like food.
SciShow
We Had Catnip All Wrong
Why do cats love catnip so much? Researchers have found a possible evolutionary answer to this adorable feline phenomenon!
TED Talks
TED: New video technology that reveals an object's hidden properties | Abe Davis
Subtle motion happens around us all the time, including tiny vibrations caused by sound. New technology shows that we can pick up on these vibrations and actually re-create sound and conversations just from a video of a seemingly still...
TED-Ed
TED-Ed: What does the world's largest machine do? | Henry Richardson
In 1967, Homer Loutzenheuser flipped a switch and connected the power grids of the United States, forming one interconnected machine. Today, the US power grid is the world's largest machine, containing more than 7,300...
MinuteEarth
The Secrets of Extreme Breath Holding
Humans can hold our breath longer than we think by taking advantage of our body’s innate survival instincts - and then ignoring them. __________________________________________ To learn more, start your googling with these keywords:...
Crash Course
Minimum Viable Product and Pivoting Crash Course Business Entrepreneurship
Imagine if the only videos on YouTube were people looking for love. That could have been the world we lived in! Before it had 1.9 billion users per day, YouTube started as a video-based dating service, complete with the truly excellent...
TED-Ed
TED-Ed: How do cigarettes affect the body? - Krishna Sudhir
Cigarettes aren't good for us. That's hardly news -- we've known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir details what happens when we smoke --...
TED Talks
Shimon Schocken: What a bike ride can teach you
Computer science professor Shimon Schocken is also an avid mountain biker. To share the life lessons he learned while riding, he began an outdoor program with Israel's juvenile inmates and was touched by both their intense difficulties...
SciShow
Future Space News of 2016
Hank Green brings in 2016 with some space missions to look forward to!
SciShow
Why Do You Feel Butterflies in Your Stomach
It may have happened when you locked eyes with your secret crush, or before an important job interview, but what exactly caused that strange, fluttering sensation in your stomach?
TED Talks
TED: A disability-inclusive future of work | Ryan Gersava
One billion people worldwide are living with a disability, and too many of them are left unemployed or feeling like they need to hide their conditions due to discriminatory hiring practices, says social innovator and TED Fellow Ryan...
SciShow
Bath Salts
Hank talks about the scary new drug that's led to some recent incidences of goat stabbing, as well as other tragedies - bath salts. We learn how it works and ask the important question: why?
Crash Course
The Heart, part 2 - Heart Throbs: Crash Course A&P
Today we're talking the heart and heart throbs -- both literal and those of the televised variety. Hank explains how your heart's pacemaker cells use leaky membranes to generate their own action potentials, and how the resulting...
Bozeman Science
AP Biology Lab 8: Population Genetics and Evolution
Mr. Andersen explains Hardy-Weinberg equilibrium and describes the bead lab.
SciShow
Taboos of Science
Hank discusses some of the taboos which have plagued scientific inquiry in the past and a few that still exist today.