America is rife with political traps. What’s your escape route? | The Dilemma Ep. 3
Adults Education
Can we let go of the need to win arguments without losing a part of who we are?
Debunking the Nuclear-Powered Manhole Cover
Adults Education
In 1957, a high-speed camera caught a cast iron cap moving at 66 kilometers per second.
You've Never Heard of the World's Most Common Mineral
Adults Education
he most common substance in the world is literally IN the world. It's a mineral called bridgmanite, and it belongs to a class of minerals (called perovskites) that scientists are trying to use in the next generation of solar panels.
Primitive Technology: Water Bellows smelt
Adults Education
I tested the water bellows with a smelt and it produced a small amount of iron from the ore. The concept has a lot of potential but is having some issues.
How Many Religions Are There?: Crash Course Religions #2
Adults Education
When we think of world religions, we often think of the Big Five: Judaism, Christianity, Islam, Hinduism, and Buddhism. But why do we think of those?
Is Co-Sleeping REALLY Dangerous?
Adults Education
If you've ever taken care of a baby, you might have heard that sleeping on the same bed with them, AKA co-sleeping, is a big no-no. But the research into the ins and outs of bed sharing is more complicated than you might think.
How to Live a Meaningful Life | Brian S. Lowery | TED
Adults Education
What makes for a meaningful life? Social psychologist Brian S. Lowery explores three ideas tied to the experience of meaning and shows why simply pursuing personal achievements isn't the best way to find it.
Primitive Technology: Water Bellows (uses water instead of leather)
Adults Education
I built a Water Bellows. It’s an upside-down clay pot with an inlet valve and an outlet spout. The inlet valve is simply a hole in the pot with a leaf plastered to the inside with wet clay so that it forms a one-way flap valve.
Is Nuclear Power “Too Expensive”?
Adults Education
The best argument against nuclear power, maybe the only real argument, is that nuclear power is “too slow” to build and is “too expensive” to finance. Is this true?
These Illusions Fool Almost Everyone
Adults Education
A big thank you to Titus Grenyer over at Pep Organ for showing us around the Sydney Town Hall Organ, to Dr. Diana Deutsch for providing her illusions and insight into the field, to Casey Connor for advice on building sound illusions, and to Dr. Michael Bach for providing the motion-bounce illusion.
Primitive Technology: Polynesian Arrowroot Hashbrown
Adults Education
I made a hashbrown from Polynesian arrowroot. A hashbrown is typically made from potatoes where it is mashed and baked on a pan.
Origins of Color (Trade & Exchange)
Adults Education
How can the color “red” be a global commodity? How can the way a statue stands be a sign of cultural exchange?
Fallout's Cold Fusion Problem
Adults Education
Was #Fallout’s “artifact” really worth transporting a severed head across the wasteland?
The Truth About Petri Dishes
Adults Education
One of the best ways of studying bacteria is to grow them on a petri dish, but only a tiny percentage of bacterial species will grow on them.
Why Reality is a “Controlled Hallucination”
Adults Education
There have always been hints that the brain wasn’t evolved to track objective reality, but a new, incredibly popular theory in neuroscience takes everything one step further. Not only is your brain not built for reality, you’ve never even experienced it. Noted Science Zaddy Kyle Hill explains “predictive processing.”
Primitive Technology: Making Charcoal in a Closed Pot
Adults Education
I made charcoal in a clay pot by putting wood in it and heat the pot externally effectively making it like a retort.
How Does Birth Control Work?
Adults Education
There are huge varieties of birth control methods because there are lots of different ways to disrupt the process of sperm-egg fertilization.
This Black Hole Could be Bigger Than The Universe
Adults Education
Black holes might create infinite universes while destroying time and space.
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.