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08.10.2025
Kultur og samfunn

Kultur og samfunn

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-3 d.

A terrifying T. rex of the sea, and more…

The newly described Tylosaurus rex was a violent bus-sized Komodo dragon-like creature with serrated teeth. Dubbed the ‘T. rex of the sea,’ it would have occupied the top of the food chain in the marine ecosystem over 80 million years ago. PLUS: Pigeons use their livers to find their way homeFrom the archives: How Jocelyn Bell Burnell discovered pulsars Scientists discover an underground network of lakes hidden under Arctic ice New book explores the million year history of how we sleep — and why we’re doing it wrong today

-3 d.

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54 min
20. mars

A stinky planet full of magma, and more...

An unusual hellscape of a planet found 34 light years from Earth has a deep ocean of molten magma surrounded by noxious, hot, rotten egg-type fumes. It just may be the most uninhabitable alien landscape we've ever come across. PLUS: Neanderthal DNA can help explain how human faces formNearly indestructible teeny tiny tardigrades struggle to survive in Martian dirtTiny tags on monarch butterflies allow scientists to track their exact migration routeA weird fish has a big hole in its head. Scientists finally have an idea why.

20. mars

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54 min
22. mai

Listening in on fish grunts, and more…

Scientists recorded audio and video of 8 different kinds of rockfish living in the wild near British Columbia, and were surprised they could tell the species apart through their various grunts, pops and knocks, even though the fish are closely related. PLUS: DNA identifies four Franklin Expedition sailors — and solves a 160-year-old mysteryImmune cells that fight infection get a boost from food Radio waves let us see the unseeable: black holes, pulsars and volcanoes on VenusFrom the archives: What will the Earth look like in 2050?Quirks Question: If chicken and fish blood is red, why are they white meats?

22. mai

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54 min
-3 d.

The most important numbers in the universe

Numbers get their due credit in this podcast. Even if we're not aware of them, numbers are essential to how we experience the world. IDEAS explores the most bizarre, surprising, mind-blowing and fundamental numbers in the universe. This panel discussion was recorded live at The Perimeter Institute for Theoretical Physics in Waterloo, Ontario. Guests in this episode: Asimina Arvanitaki is a particle physicist and the aristarchus chair in theoretical physics at the Perimeter Institute. Ben Webster is an associate professor in the pure mathematics department at the University of Waterloo, and he’s also an associate faculty member at the Perimeter Institute. Matthew Johnson is a professor of physics and astronomy at York University, and he's also an associate faculty member at the Perimeter Institute.

-3 d.

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54 min
27. mars

Dogs have been by our side for 16,000 years, and more...

New research confirms that dogs were the first animal to form a domestic relationship with humans, dating back to the end of the last Ice Age almost 16,000 years ago. PLUS: Constructing shelters out of Martian soil may be possible with bacterial helpMale-on-male cricket 'twerking' and 'booty bumping' is not a case of mistaken identityNarrowing down potential alien signals from 12 billion to 100, thanks to SETI Researchers find a brain switch in mice to turn a deadbeat dad into a doting one

27. mars

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54 min
18. mai

Why laughter is so contagious

If you want to hear what a laughing rat sounds like this podcast is for you. From why the sound of laughter triggers us to join in, to how a laughing yoga class starts, to the difference between AHA and HAHA in science, IDEAS contributor Peter Brown takes us on a joyride to reveal the mystery of laugher. Will this podcast make you laugh? Most likely. But it's better than catching a cold. *This episode originally aired on Nov. 4, 2020.

18. mai

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54 min
13. mars

Bonobo females bully the boys, and more…

We used to think that of our primate relatives, chimps were the more aggressive ape and bonobos were more peaceful. A recent study found that bonobos are just as antagonistic as chimps, but it's the females targeting males. PLUS: Mission to deflect an asteroid was a smashing successLow gravity environments can lead to stronger blood clots in astronautsFrom fire to galaxy formation, a celebration of friction as a fundamental forceWinter spiders survive subzero temperatures with a potent antifreeze

13. mars

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54 min
15. mai

How dandelion seeds take flight, and more…

In a study inspired by a field of dandelions, researchers wanted to know why, when you blow on a dandelion seed head, only the seeds closest to you take flight. They found that a dimple in the seed heads where the seed attaches is larger on one side than the other, and that the seeds consistently broke off from the smaller side of that dimple. Once they take flight, each dandelion seed uses its unique shape to catch a ride on the wind. PLUS: Infrasound, not ghosts, may be why old buildings give us the heebie-jeebiesThese arms are made for lovin'. How male octopuses find their matesFrom the archives: Donald Johanson on the discovery of 'Lucy,' our missing linkVirtual hearts help doctors fix patients’ life-threatening irregular heart beatsQuirks Question: What’s the benefit for trees being evergreen?

15. mai

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54 min
24. mai

Alberta separatism: What's Ottawa's role?

Alberta Premier Danielle Smith is giving people a choice this fall -- stay in Canada or begin the legal path toward a binding referendum on separation. Checkup has every angle covered including: reactions from Alberta, the rest of Canada, as well get expert analysis on the potential legal, and political ramifications to the premier's announcement this week.

24. mai

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1 t 10 min
6. mars

Filming a black hole in action, and more…

You may have seen Black Hole, the image, but have you heard of the upcoming Black Hole, The Movie? This week, astronomers launched a new campaign to capture video footage of the supermassive black hole pulsing at the heart of the M87 galaxy. PLUS: Sunlight and fungi inspiration can help recycle plastic waste into vinegarAncient kangaroos were hopping giantsHow monogamy helps termite colonies number in the millionsOur infant universe's primordial soup was soupy, according to new study

6. mars

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54 min

Expand your knowledge and satisfy your curiosity with podcasts exploring the topics affecting us all — from science, climate, and tech news to history and human nature. Award-winning series that enlighten, entertain and inform.