A Moment of Science

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**A Moment of Science**

A Moment of Science is a daily audio podcast, public radio program and video series providing the scientific story behind some of life’s most perplexing mysteries.

Latest Episodes:

Magma and Oxygen Jan 19, 2020

Show notes

Today on A Moment of Science were going to explain why Earth's air contains oxygen.

Hairstyles That Lead To Hair Loss Jan 18, 2020

Show notes

Ponytails, cornrows, and tight up-dos are hairstyles that can look great. But wearing your hair pulled tight for extended periods of time can eventually lead to hair loss.

Galactic Center Jan 15, 2020

Show notes

In 2019, scientists achieved a great goal of astrophysics when they published the first-ever image of a black hole. By coordinating radio telescopes around the world to create, in effect, one Earth-sized telescope, scientists were able to capture an image of a black hole.

Knuckleball Physics Jan 09, 2020

Show notes

In baseball, hitting a homer against a fastball, or even a knuckleball, can be very difficult, though not as difficult as you might think.

Luke Skywalker's Hand Dec 28, 2019

Show notes

In a scene from Star Wars: The Emprie Strikes Back, Darth vader cuts off Luke Skywalkers right hand. Afterwards, Luke receives a robotic replacement hand that is as good as new.

Eyes and Alzheimer's Dec 27, 2019

Show notes

Researchers think that looking at how quickly a person's pupil dilates when taking cognitive tests could predict if a person is at an increased risk for Alzheimer's disease, even before any obvious symptoms show up.

Crows Choose Whether To Call Dec 23, 2019

Show notes

Humans voluntarily choose some of our actions, but others are automatic. Scientists want to know whether animal behaviors are automatically triggered by environmental situations, or whether animals sometimes choose their behaviors just like humans do.

Feeling Hangry Dec 18, 2019

Show notes

When people are hungry, this hunger sometimes turns into anger. This mental state is known as "hangry," and could be caused by the stress of the morning mixed with hunger.

Computing With Light Nov 12, 2019

Show notes

Computers would be much faster, smaller, and consume less energy if they used light signals instead of electrical signals. That's why many scientists are racing to figure out how to make computers that use light.

A Rock In A Rowboat Nov 11, 2019

Show notes

Imagine you're in a rowboat, in a small pond. You have a huge boulder with you in the boat. You throw the boulder overboard into the water. Does the water level of the pond rise, fall, or stay the same?

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