I tested the US Military’s secret space weapon
AdultsConstructionHistoryScience...An engineer came up with a plan to drop tungsten telephone poles from space - the idea has been seriously considered on multiple occasions, so we tested it.
How to stay calm when you know you'll be stressed
AdultsHealthHumanPsychology...You're not at your best when you're stressed. In fact, your brain has evolved over millennia to release cortisol in stressful situations, inhibiting rational, logical thinking but potentially helping you survive, say, being attacked by a lion.
Testing Shoes That Make You Walk 250% Faster
AdultsArtCreativityTechnology...What if you could walk way faster without trying any harder? Moonwalkers basically put an electric moving sidewalk right under your feet.
Primitive Technology 0:02 / 9:21 #PrimitiveTechnology #pottery #potterywheel Primitive Technology: Pottery Wheel
AdultsCreativityEducationLife...I made a small pottery wheel to form pots on. A pottery wheel is a small table on which pottery is formed that is able to be rotated about an axis to form more symmetrical pots.
What Is The Best Shape For A Farm?
AdultsCreativityCultureHistory...The shape of a farm can tell you a surprising amount about the land it's on and the people that use it.
Why do you want to squeeze cute things?
AdultsHumanPsychologyScienceExplore the psychology of the phenomenon known as cute aggression, which is the urge to squeeze, bite or pinch something cute.
3 Ways Of Seeing Invisible Air Flow
AdultsEducationScienceExperimentsIn this lab, they use different flow visualization techniques to help detect contraband, residues, and develop trace particle detection methods.
Machu Picchu 101 | National Geographic
AdultsNatureTravelWorld...Machu Picchu is a testament to the power and ingenuity of the Inca empire. Built without the use of mortar, metal tools, or the wheel, Machu Picchu stands as an archaeological wonder of the ancient world. But why was it built—and deserted?
What makes a poem … a poem? - Melissa Kovacs
AdultsHistoryHumanSelf...What exactly makes a poem … a poem? Poets themselves have struggled with this question, often using metaphors to approximate a definition. Is a poem a little machine? A firework? An echo? A dream? Melissa Kovacs shares three recognizable characteristics of most poetry.