How do 3D glasses work?
3D glasses. Those little paper spectacles with one red lens and one blue. Put ’em on, and suddenly, POW! Images seem to leap right off the screen! Do these glasses play magical mind tricks on our brai...
12 Des 20245min
How do vocal cords work?
Vocal cords are magical things. They let us speak, sing, squawk and scream. But what are vocal cords and how do they do all that? We asked pediatrician Emma Gerstenzang to help us find the answer. Got...
11 Des 20245min
How does hair dye work?
If you could turn your hair any color in the world… what color would you choose?! Sapphire blue, hot pink, lime green, neon orange?? There are dyes out there that can turn your hair every color of the...
10 Des 20245min
How are bricks made?
Bricks are all around us: in walls, sidewalks, park benches, and more. How are these bodacious blocks made, and what makes them different colors? We asked construction and masonry expert Brian Trimbl...
9 Des 20245min
When did people start using utensils?
People around the world eat with a variety of utensils like forks, chopsticks, and sporks. But what did people do before silverware was invented? We asked human evolution expert Briana Pobiner from th...
6 Des 20247min
How do our clothes get dirty?
Clothes are FUN. We strut our stuff in them. Laugh and play in them. Sometimes we love one article of clothing so much, we never want to take it off! But eventually, all clothes do have to be cleaned....
5 Des 20244min
Why does salt make you thirsty?
Have you ever noticed that when you eat something salty, you feel extra thirsty for a while afterwards? Ever wondered why? Turns out, scientists are wondering why as well, and it’s a perfect example o...
4 Des 20246min
Why does bread have holes?
Bread! It’s good stuff, no matter how you slice it. But why do slices of bread have holes in them? Are there bread moles who tunnel through baguettes? Invisible worms in the whole wheat? Chipmunks che...
3 Des 20245min
