Concrete is so much more than just a sidewalk. We use it to build playgrounds and skateparks and even musical instruments! But how does it go from a powder to a sludge to the strong building material that we use all over the world? And can we come up with new recipes that are better for the environment?
To celebrate this superlative substance, Molly and coh ... Show More
Yesterday
Why do we need pinky toes?
Pinky toes may seem small, but they’re kind of a big deal. Join Molly and co-host Luna Mae as they learn about why we have these tiny toes and what would happen if we didn’t have them. Plus, we talk about animals with two, three, or six toes! Plus, a Mystery Sound that’ll get you ... Show More
32m 31s
Sep 8
Why does music make us dance?
When you hear a good beat, it can be hard not to tap your toe or bob your head. Why is this? It turns out, we may be hardwired to start dancing when we hear certain rhythms. Join Molly and co-host Adriel as they explore how the brain turns sounds into dance moves. Plus, we’ll tal ... Show More
36m 52s
Sep 1
Black holes, wormholes and donut holes!
Black holes happen when you have a super huge, mega-giant amount of stuff --- crammed into a super-tiny, infinitely-small amount of space. AND THEY ARE SUPER COOL! In this episode, we learn all about what black holes are and how we found out they were real. We talk to a black hol ... Show More
39m 43s
Apr 2021
The material that could change the world... for a third time | TED-Ed
Today roads, sidewalks, bridges, and skyscrapers are made of a material called concrete. There's three tons of it for every person on Earth. It's also played a surprisingly large role in rising global temperatures over the last century. So, what exactly makes concrete problematic ... Show More
5m 43s
Jan 2021
How we could make carbon-negative concrete | Tom Schuler
Concrete is all around us: we use it to build our roads, buildings, bridges and much more. Yet over the last 2,000 years, the art of mixing cement and using it to bind concrete hasn't changed very much -- and it remains one of the world's biggest emitters of carbon. Entrepreneur ... Show More
5m 16s
May 2022
Turning mud into ‘clean’ concrete
A young scientist has developed a white powder which gives waste soil concrete-like properties. Gnanli Landrou grew up in Togo, helping his neighbours dry out soil to make bricks, and his big dream is to help people like them build stronger, cheaper, houses.But the European build ... Show More
24m 3s
