Podcast Episodes
Back to Search
How do our organs heal themselves?
Normally, when tissue gets injured, cells start replicating and make new tissue. But what about the heart?
2 years, 4 months ago
Benjamin Franklin and his fabric swatches in the snow
In a letter written in 1761, Benjamin Franklin tells how he collected some little squares of broadcloth. Franklin wanted to demonstrate that these co…
2 years, 5 months ago
Extremophiles go to the ends of the Earth and thrive there
Just like Goldilocks, humans have searched for a place that's "just right" to live in. That's not the same for all species, though.
2 years, 5 months ago
Colors and their opposites, with paint
We usually think of paint as a substance that adds color to things. But, from a physical point of view, paint works by taking colors away.
2 years, 5 months ago
Why do people grunt when playing tennis?
Tennis players are known for the loud grunts they make during a game. Why do they do it?
2 years, 5 months ago
Could being a dog person be in your genes?
In 2019 a team of Swedish and British scientists published a study claiming that whether we chose to own a dog may be influenced by our genes.
2 years, 5 months ago
Graphene and faster computer chips
Physicists are searching for new materials with better semiconductor properties so that computers can continue to improve.
2 years, 5 months ago
Where the sky isn't blue
We just covered why the sky is blue, but there are a few areas without color above us.
2 years, 5 months ago
What makes the sky blue?
It can't be the atmosphere, or dust, or water droplets. So what makes the sky blue?
2 years, 5 months ago
Temperature: A key variable in making the perfect cup of coffee
Water temperature is a major element of quality control in making coffee. Why exactly is temperature important?
2 years, 5 months ago