On Today's Podcast
What a trapped antimatter particle could tell us about reality
Researchers have trapped a positron and held it at extremely cold temperatures for months, allowing them to measure its quantum properties.
Listen NowOctober 30, 2026
When, and where, did bats first take to the sky? Online clinics are prescribing GLP-1 microdoses formulated by compounding pharmacies. Are they safe and effective? Terence Tao says mathematics is about understanding, not just right answers, and quick AI solutions are forcing soul-searching in the field. Plus, how chatbots are changing language, and what life was like for T. rex.
Glowing in the Dark: Testing Phosphorescence
Learn about phosphorescence and how certain materials can absorb and store energy from a light source. Then discover which type of light gets the brightest glow from a glow-in-the-dark star.
Connecting Science and Art
Cormac McCarthy, Werner Herzog, and Lawrence Krauss discuss science as inspiration for art.
Learn how to cultivate moss in a terrarium
Learn about the biological needs and lifecycle of mosses by cultivating and maintaining your own moss terrarium.
Building A Solar House
Buildings that are called “green” or “environmentally sustainable” are designed to use energy as efficiently as possible. In Missouri, Washington University’s Tyson Living Learning Center achieves sustainability by incorporating green technologies in different ways, including the use of solar panels. In this activity, students will explore how solar panels work by building a simple circuit, a series circuit and a parallel circuit, using a solar panel to light a bulb and comparing which method yields the brightest light. Then students will build a solar-powered house using a shoebox, and test some variables to determine the most efficient way to harness solar energy to power a model home.
Explosive Science
In this activity, students will use household materials to investigate and explore how the release of carbon dioxide gas from a chemical reaction can cause a small-scale explosion. Students then will experiment with variables to determine which factors launch a film canister the highest.
Can Dogs Smell Cancer?
A new study says a dog did better than conventional tests in identifying patients with cancer.
Grabbing a Bite to Eat
In this activity, students will perform an experiment that replicates the dilemma that birds face in acquiring food from a confined area. Students will be given a variety of objects to use as “tools,” and will explore various ways of extracting the food item from an enclosed shoebox without directly using their hands. Students will compare and contrast which tools worked best, and use problem-solving skills to design and develop unique methods for extracting the food item from the shoebox.
Fun With Optics: Can You Explain How A Telescope Works?
Use simple materials to explore the properties of reflection and refraction as you discover how optics work in telescopes.
Model the flow of a river with a simple stream table.
Investigate river formations in different landscape scenarios from a flat plain to a terrain with hills and valleys.
Ugh, A Bug! Get To Know Insect Anatomy
What are the distinguishing physical characteristics of an insect? Observe live crickets to learn the function of various insect body parts!
Oliver Sacks and ‘The Mind’s Eye’
Neurologist Oliver Sacks talks with Ira about vision, the brain, and how the two can work together—or can work against each other.
Dean Kamen
He’s invented everything from an insulin pump to the Segway Transporter. He started the FIRST Robotics competitions for students. And now, he has his own television show.
Physics Of Giant Pumpkins
Pumpkins of the Atlantic giant variety can weigh more than 1,800 pounds.
Flower Anatomy
In this activity, students will discuss the various methods by which pollination can occur in flowers or plants. Students will dissect and identify the different parts of a flower, hypothesize the function of each part, and discuss the importance or relevance of each part to pollination.
The Once and Future Car
This week, news emerged of a self-driving car being researched by Google. We’ll look back at other ‘cars of the future’ and what happened—or didn’t happen—to them.
The Color Of Flowers
In this activity, students will perform an experiment to find out where flower colors come from. Students will extract petal juice, use acid and base indicators, and observe chemical reactions to investigate how the amount of acid or base influences the color of a petal.
Illuminating Luminescence
Compare and contrast different forms of luminescence by observing how chemiluminescence, phosphorescence, and fluorescence produce or emit light.
How Boulders Are Born
In this activity, students will review and discuss weathering, erosion and mass wasting, to gain a stronger understanding of how Hickory Run’s Boulder Field was formed after the Laurentide Continental Glacier receded. Using edible materials, students will model and demonstrate the geological processes that formed this unique feature.