Why Do We Release So Much Gas?
Adults History Human Science Environment Global WarmingThe carbon dioxide we’re pumping into the air every day is causing unprecedented global warming and climate change.
Testing Shoes That Make You Walk 250% Faster
Adults Art Creativity Technology GadgetsWhat 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
Adults Creativity Education Life DIY How-toI 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?
Adults Creativity Culture History ScienceThe 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?
Adults Human Psychology ScienceExplore 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
Adults Education Science ExperimentsIn this lab, they use different flow visualization techniques to help detect contraband, residues, and develop trace particle detection methods.
Machu Picchu 101 | National Geographic
Adults Nature Travel World History CultureMachu 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
Adults History Human Self Writing ArtWhat 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.
The Most Extreme Explosion in the Universe
Adults Life Science SpaceSupernovae are the most powerful explosions in the universe, unleashing enough energy to outshine galaxies. We have no real metaphor for their power – if the sun were to magically go supernova it would feel like you were being hit by the energy of a nuclear explosion, every second. For weeks.