
ELI5 Helium - is there really a global shortage?
How can "superfluid" helium flow against gravity and climb up the walls of a container? Why was helium discovered on the Sun nearly thirty y...
Radio and PodcastLive Radio & PodcastsOpening Radio and Podcast...

Radio and PodcastLive Radio & PodcastsFetching podcast shows and categories...
Radio and PodcastLive Radio & PodcastsFetching podcast episodes...

Explain Like I'm Five, aka ELI5, is the mini-podcast series where we take the questions you always wanted to ask, and talk about them in a way that is easy to understand. Made possible by th...

How can "superfluid" helium flow against gravity and climb up the walls of a container? Why was helium discovered on the Sun nearly thirty y...

Why do we see many professional athletes look like they were attacked by a giant octopus? How did a treatment from ancient history become th...

Why is crying so much more than just being sad? Why do your lungs perform those jerky gasps once the actual sobbing stops? Why does that pai...

How did a country with only 5.7 million people beat much larger countries in Winter Olympic medals? Why does Norway ban competitive scoring...

How do one way mirrors allow light to pass in only one direction? If light travels through the glass equally from both sides, why does the s...

With such great speeds and a significant vertical drop, how do ski jumpers not sustain injury when landing? What makes one ski jumper better...

Why is most fire equipment red in color? What happens if you use the wrong class of extinguisher on a grease or metal fire? Could the future...

Why does a perfectly steady heartbeat actually serve as a warning sign you should not ignore? If your heart is a drummer, why is a little bi...

What are the creative ways people fool their FitBit? How does my activity tracker differentiate between steps and my tapping to a rhythm? Do...

Why is a metal you’ve probably never heard of often worth more than pure gold? Why are thieves risking jail just to steal one specific part...

Why does adding more lanes to a highway actually make traffic jams get even worse? How did the machine meant to end slavery accidentally mak...

Why did the CIA secretly buy Soviet metal to build the very plane designed to spy on them? How does a metal named after Greek Titans manage...

Why do people in the UK typically say Happy Christmas while in America it is most commonly Merry Christmas? What made red and green Christma...

Why do people in the UK typically say Happy Christmas while in America it is most commonly Merry Christmas? What made red and green Christma...

What makes a pearl so mesmerizing, and what is it really? What exactly is a pearl made of, and how does it form inside a mollusk? Can a grai...

If every major country is in billions of debt, where are they borrowing from? Who exactly do they owe? Are there any consequences for them b...

Did you know bubble gum is traditionally pink simply because the inventor ran out of every other color? Did McDonald’s really try to help ki...

What sparked the invention of Morse code, and how did personal tragedy influence Samuel Morse's creation? Is Morse code still used today? Ho...

What makes marble feel cold to the touch, especially in winter apartments? How does the use of marble in art reflect the cultural values of...

Why do modern carriers feature an angled flight deck instead of a straight full-length runway like their WWII predecessors? How fast does an...

Is the Iron in our body different from the Iron used in construction? How did ancient cultures use meteoric iron without knowledge of metall...

Why do we still change clocks to Daylight Savings Time when so many people dislike it? Who came up with the idea in the first place? Why is...

If nuclear submarines can generate their own water and oxygen underwater, why do they need to surface at all? Why are submarine propellers a...

What is the gold standard and how did it influence currency value historically? How did the transition from a gold standard to fiat currency...

Did you know a standard lock might have thousands of combination possibilities, yet yours might open someone else's door? How does a master...

Did you know that the original Monopoly board was circular as well as made from cloth? How have Monopoly games evolved over the years to cre...

What inspired George Ferris to create the first Ferris wheel at the Chicago World’s Fair in 1893? How tall was the original Ferris wheel, an...

What exactly are desiccants, and why are they commonly used in packaging? How does silica gel effectively trap moisture in humid environment...

How does sleepwalking work exactly? Are certain people more prone to it? What types of activities can sleepwalkers get up to? Are there spec...

How did Poker evolve into a cultural phenomenon beyond just a card game? What makes poker different from other casino games in terms of play...

What makes washing machines such a vital household invention in the modern world? How did washing machines transform household chores from 8...

What is LiDAR? Why is it helpful in addition to seeing things through cameras? How does LiDAR time-of-flight measure distance when light tra...

How did we end up with the deck of cards that we use today? Did the standard 52-card deck derive from Tarot cards, and what does that mean f...

What is gout, and how does it uniquely affect your body compared to other forms of arthritis? Why does gout primarily affect the big toe? Ho...

How do competitive solvers manage to solve a Rubik's Cube in under 10 seconds, and what techniques do they use? What is the relationship bet...

Why do home toilets typically have tanks, while public toilets often don't? What are some benefits of tankless toilets in public spaces from...

Why are airplane black boxes not connected to real-time satellite data systems? What data does a black box contain and how does it contribut...

Which came first, wine or beer? Is it true that the birthplace of wine is Georgia, not France or Italy? Can any wine truly age forever, or d...

How did ancient sailors rely on beer for hydration? What does history tell us about alcohol's role in survival? Why was beer so essential fo...

What is creatine, and how does it work in our body during high-intensity activities like sprinting or weightlifting? Did you know creatine b...

Are induction stoves quicker than gas stoves? How does using an induction stove compare to using gas or conventional electric stoves? What i...

What is really going on when you get a bump in your back or neck muscle that hurts when you press on it? Do muscles really get knots? How do...

What surprising fruit is botanically classified as a berry but often confuses people in everyday conversation? How do the definitions of ""b...

What’s the historical reason for the U.S. using "Letter" paper size over the international standard A4 paper? What inconveniences do people...

What exactly is a defibrillator? Why is the analogy of jump starting a car incorrect? What’s happening in the heart when a shock is delivere...

Why do dragons capture our imagination across different cultures and eras when it isn't a real creature? What psychological factors contribu...

Could jaw surgery be the faster solution for realigning teeth, and what are the risks? How exactly does wearing Invisalign gradually shift y...

What is Stoicism, and how does it apply to our modern lives today? How does Stoicism differ from popular self-help interpretations of its pr...

What makes the Panama Canal’s lock system so essential compared to the Suez Canal’s lack of locks? How do locks help manage the canal’s sign...

What fascinating adaptations led to the evolution of diverse blood types in humans over millennia? How does our immune system interact with...