MinuteEarth
How Long Can We Live?
The human lifespan might be limited, in part, because natural selection just stops working late in life. ___________________________________________ Video Keywords: Mortality plateau: the leveling out of the mortality rate that is...
MinutePhysics
Higgs Boson Part III - How to Discover a Particle
How do you know when you've "discovered" a particle? What do we mean by "discovery"?
TED Talks
Shohini Ghose: Quantum computing explained in 10 minutes
A quantum computer isn't just a more powerful version of the computers we use today; it's something else entirely, based on emerging scientific understanding -- and more than a bit of uncertainty. Enter the quantum wonderland with TED...
Bozeman Science
Chi-squared Test
Paul Andersen shows you how to calculate the ch-squared value to test your null hypothesis. He explains the importance of the critical value and defines the degrees of freedom. He also leaves you with a problem related to the animal...
TED Talks
TED: Prepare for a good end of life | Judy MacDonald Johnston
Thinking about death is frightening, but planning ahead is practical and leaves more room for peace of mind in our final days. In a solemn, thoughtful talk, Judy MacDonald Johnston shares 5 practices for planning for a good end of life.
SciShow
Tsunamis... From the Sky?
Scientists have developed reliable early warning systems for tsunamis caused by earthquakes. The problem is, earthquakes aren't the only things that cause tsunamis.
TED-Ed
TED-Ed: How does heart transplant surgery work? | Roni Shanoada
Your heart beats more than 100,000 times a day. In just a minute, it pumps over five liters of blood throughout your body. But unlike skin and bones, the heart has a limited ability to repair itself. So if this organ is severely damaged,...
TED-Ed
TED-Ed: Can you solve the frog riddle? - Derek Abbott
You're stranded in a rainforest, and you've eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, only the female frog produces the antidote. The male and female look...
SciShow
What Does "A 50% Chance of Rain" Actually Mean?
Your friendly local weather person says there's a 10% chance it will rain today, so you throw on your flip-flops and head out to enjoy a beautiful day. Next thing you know, you're running through puddles, trying to get out of a...
TED Talks
TED: A life lesson from a volunteer firefighter | Mark Bezos
Volunteer firefighter Mark Bezos tells a story of an act of heroism that didn't go quite as expected -- but that taught him a big lesson: Don't wait to be a hero.
SciShow
Asteroids to Watch Out For
Hank tells us about NASA's Near-Earth Object Program, which tracks the paths of asteroids and categorizes them according to the likelihood that they will strike the Earth at some point in the future.
SciShow
There’s a Rectangle Galaxy?
You're probably used to real galaxies having curves, except not all of them seem to have gotten the memo.
TED-Ed
TED-Ed: Can you solve the riddle and escape Hades? | Dan Finkel
The underworld is overcrowded, and Zeus has ordered Hades to let some spirits out. Hades arranges all the souls of the dead in a line before Cerberus. When one of his three heads bites down on the soul in front of it, they'll get...
TED-Ed
TED-Ed: The last banana: A thought experiment in probability - Leonardo Barichello
Imagine a game played with two players and two dice: if the biggest number rolled is one, two, three, or four, player 1 wins. If the biggest number rolled is five or six, player 2 wins. Who has the best probability of winning the game?...
TED Talks
TED: We can make COVID-19 the last pandemic | Bill Gates
Building a pandemic-free future won't be easy, but Bill Gates believes that we have the tools and strategies to make it possible -- now we just have to fund them. In this forward-looking talk, he proposes a multi-specialty Global...
TED-Ed
TED-ED: The coin flip conundrum - Po-Shen Loh
When you flip a coin to make a decision, there's an equal chance of getting heads and tails. But what if you flip the coin repeatedly, so that one option would win as soon as two heads showed up in a row, and another would win as soon as...
Crash Course
Controlled Experiments - Crash Course Statistics
We may be living IN a simulation (according to Elon Musk and many others), but that doesn't mean we don't need to perform simulations ourselves. Today, we're going to talk about good experimental design and how we can create controlled...
TED Talks
TED: Why Indigenous forest guardianship is crucial to climate action | Nonette Royo
Indigenous communities have looked after their ancestral forests for millennia, cultivating immense amounts of knowledge on how to protect, nourish and heal these vital environments. Today, 470 million Indigenous people care for and...
Be Smart
What is Luck?
Is luck real? It might feel like a mystical force tugging us toward good or bad fortune, but it turns out luck is really where probability runs into the human mind. That's right, there's a scientific side to luck, and if you study a few...
TED-Ed
TED-Ed: The method that can "prove" almost anything | James A. Smith
In 2011, a group of researchers conducted a study designed to find an impossible result. Their study involved real people, truthfully reported data, and commonplace statistical analyses. So how did they do it? The answer lies in a...
TED Talks
TED: An intergalactic guide to using a defibrillator | Todd Scott
If Yoda goes into cardiac arrest, will you know what to do? Artist and first-aid enthusiast Todd Scott breaks down what you need to know about using an automated external defibrillator, or AeD -- in this galaxy and ones that are far, far...
SciShow
Does Drinking Alcohol Kill Your Gut Bacteria?
Alcohols are used to disinfect things all the time, which makes drinking them sound bad for the helpful critters in your gut. But, turns out, drinking in moderation could actually be good for your microbiome.
SciShow
Why Is Only Half of My Nose Working?
Ever notice how one side of your nose always seems to be more stuffed than the other? What's up with that? Quick Questions knows!
SciShow
A New Asteroid Mining Mission!
The future is bright for those of you who want to be asteroid miners! You might soon get your chance!