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.
How To Make Plastic From Seaweed
YouthEnvironmentScienceBiotechnologyHow-toA California startup makes compostable replacements for thin-film plastic out of seaweed.
How Paul Cezanne Changed Art
KidsArtCreativityHistoryEducationLearn all about how his still life paintings broke all the art rules!
How To Draw A Funny Moose
KidsArtCreativityHow-toFollow along with us and learn how to draw a funny, cute cartoon moose.
Machu Picchu 101 | National Geographic
AdultsNatureTravelWorldHistoryCultureMachu 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?
Why A Sausage Can Do What Your Gloves Cannot
YouthScienceTechnologyDig into the science of touchscreens, and find out the difference between the two most common types: capacitive and resistive.
What makes a poem … a poem? - Melissa Kovacs
AdultsHistoryHumanSelfWritingArtWhat 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.
What Is Ocean Stratification?
YouthEnvironmentNatureScienceOceanThe ocean has layers that mix—sometimes. What are the layers made of? And why is it bad news when they don’t?