Primitive Technology: Geopolymer Cement (Ash and Clay)
Adults Education
I have made wood ash cement before under the assumption that it was the calcium in the ash that gave it its cementitious properties...
Does Expensive Coffee actually taste better?
Adults Education
Coffee beans are one of the most confusing items to purchase, so over the past several weeks, I bought 20+ different kinds of coffee at different price points, visited a local roaster, tried roasting my own beans at home and tested a bunch of types of coffee in order to understand the flavor and price differences of coffee beans.
Why the Three-Body Problem is Unsolvable*
Adults Education
What is the THREE-BODY PROBLEM? What does it have to do with the award-winning book of the same name?
The Language Counting Paradox
Adults Education
Lots of languages and species are going extinct, but because others keep getting found or described, the official counts of languages and species are still increasing.
The Science of HELLDIVERS 2!
Adults Education
Super Earth needs you, Helldiver! But of course, you wouldn’t just willingly jump into a hellpod and drop straight into the heart of battle without asking some important questions about the science and theory behind your new career, right?
The Solar System is Beige
Adults Education
Whether you grew up with a poster of the solar system on your bedroom wall or not, you've probably got a specific idea of what the planets look like. From brilliantly blue Neptune to the "red planet" Mars. But if you managed to actually visit these worlds, you'd find reality... a little beige.
Inside The Sunny Center of a Hurricane
Adults Education
Why is the middle of a hurricane sometimes so clear and calm?
What Makes Kurzgesagt So Special?
Adults Education
We're finally revealing the secret sauce behind kurzgesagt videos.
Alex Honnold Explores Sustainability at Epcot
Adults Education
For Earth Month, Alex Honnold visited Walt Disney World to find out how the Sunshine State's namesake is helping to sustainably power the park while also boosting biodiversity.
How AI Will Step Off the Screen and into the Real World | Daniela Rus | TED
Adults Education
The convergence of AI and robotics will unlock a wonderful new world of possibilities in everyday life, says robotics and AI pioneer Daniela Rus.
Primitive Technology: Wet Season Destroys Thatched Workshop
Adults Education
The thatched workshop where I produce bricks, pottery, cement and charcoal for various projects was destroyed by prolonged rain from the wet season.
Crash Course Art History Preview
Adults Education
Welcome to Crash Course Art History! Over the next 22 episodes, Sarah Urist Green will explore the hidden stories behind artworks.
Does Fallout's "Rule of Thumb" Work?
Adults Education
Is #fallout 's famous Vault Boy actually hiding some accurate nuclear blast survival tactics?
Why the Hardest Rocks Can Be Easy to Break
Adults Education
So, rocks are hard. But the scale we use to rank them, the Mohs scale, is only really good at quantifying that for one kind of hardness, and topaz is a perfect stone to talk about to explain that. And you can check it out in our SciShow Rocks Box subscription!
MinuteEarth Explains: Solar Eclipses
Adults Education
Over the last year, we at MinuteEarth and MinutePhysics have had the privilege of working with NASA's Heliophysics Education Activation Team make a series of videos about the awesomeness of solar eclipses. Here they are, all seven of them!
There Are Thousands of Alien Empires in The Milky Way
Adults Education
We often assume that advanced technology will make it easy for aliens to colonize space. But what if space exploration is always difficult, no matter how advanced you are?
The Real Killer Of The Dinosaurs
Adults Education
A ruthless murder was committed! Someone killed the dinosaurs and we have the murderer! Witnesses say that an Everest-sized asteroid hit Earth, devastated the planet and caused a mass extinction. A simple, fascinating and convincing explanation. Or… is it?
The Billion-Dollar Problem in Education
Adults Education
Standardized testing is deeply woven into the fabric of US education, but does it foster genuine learning?
How the Most Expensive Swords in the World Are Made
Adults Education
This is a video about how Japanese samurai swords, aka katanas, are made – from the gathering of the iron sand, to the smelting of the steel, to the forging of the blade.
Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment
Adults Education
I tested the one-way spinning blower in an iron smelt and it is more effective than the previous both way spinning blower.
Cardiologist Answers Heart Questions From Twitter
Adults Education
Cardiologist Dr. Sunil Rao answers your questions about the heart from Twitter. How do you measure your maximum heart rate?