Explorez tous les épisodes du podcast Quanta Science Podcast
| Titre | Date | Durée | |
|---|---|---|---|
| Brain's 'Background Noise' May Explain Value of Shock Therapy | 04 Sep 2024 | 00:12:36 | |
Electroconvulsive therapy is highly effective in treating major depressive disorder, but no one knows why it works. New research suggests it may restore balance between excitation and inhibition in the brain. | |||
| Swirling Forces, Crushing Pressures Measured in the Proton | 21 Aug 2024 | 00:17:46 | |
Long-anticipated experiments that use light to mimic gravity are revealing the distribution of energies, forces and pressures inside a subatomic particle for the first time. | |||
| During Pregnancy, a Fake 'Infection' Protects the Fetus | 01 May 2024 | 00:09:59 | |
Cells in the placenta have an unusual trick for activating gentle immune defenses and keeping them turned on when no infection is present. It involves crafting and deploying a fake virus. Read more at QuantaMagazine.org. Music is “Unanswered Questions” by Kevin MacLeod. | |||
| Hidden Computational Power Found in the Arms of Neurons | 22 Oct 2020 | 00:17:16 | |
The dendritic arms of some human neurons can perform logic operations that once seemed to require whole neural networks. The post Hidden Computational Power Found in the Arms of Neurons first appeared on Quanta Magazine | |||
| Neutrinos Lead to Unexpected Discovery in Basic Math | 08 Oct 2020 | 00:17:46 | |
Three physicists stumbled across an unexpected relationship between some of the most ubiquitous objects in math. The post Neutrinos Lead to Unexpected Discovery in Basic Math first appeared on Quanta Magazine | |||
| Machines Beat Humans on a Reading Test. But Do They Understand? | 24 Sep 2020 | 00:31:24 | |
A tool known as BERT can now beat humans on advanced reading-comprehension tests. But it's also revealed how far AI has to go. The post Machines Beat Humans on a Reading Test. But Do They Understand? first appeared on Quanta Magazine | |||
| How Jurassic Plankton Stole Control of the Ocean’s Chemistry | 10 Sep 2020 | 00:16:23 | |
Only 170 million years ago, new plankton evolved. Their demand for carbon and calcium permanently transformed the seas as homes for life. The post How Jurassic Plankton Stole Control of the Ocean’s Chemistry first appeared on Quanta Magazine | |||
| To Pay Attention, the Brain Uses Filters, Not a Spotlight | 27 Aug 2020 | 00:19:17 | |
A brain circuit that suppresses distracting sensory information holds important clues about attention and other cognitive processes. The post To Pay Attention, the Brain Uses Filters, Not a Spotlight first appeared on Quanta Magazine | |||
| Fossil DNA Reveals New Twists in Modern Human Origins | 13 Aug 2020 | 00:20:27 | |
Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the genetic flow went both ways. The post Fossil DNA Reveals New Twists in Modern Human Origins first appeared on Quanta Magazine | |||
| For Embryo's Cells, Size Can Determine Fate | 30 Jul 2020 | 00:15:34 | |
Modeling suggests that many embryonic cells commit to a developmental fate when they become too small to divide unevenly anymore. The post For Embryo’s Cells, Size Can Determine Fate first appeared on Quanta Magazine | |||
| Scientists Debate the Origin of Cell Types in the First Animals | 16 Jul 2020 | 00:18:41 | |
Theories about how animals became multicellular are shifting as researchers find greater complexity in our single-celled ancestors. The post Scientists Debate the Origin of Cell Types in the First Animals first appeared on Quanta Magazine | |||
| Wandering Space Rocks Help Solve Mysteries of Planet Formation | 02 Jul 2020 | 00:15:02 | |
After an interstellar asteroid shot past the sun, scientists realized that there’s probably a lot of itinerant rocks out there. The post Wandering Space Rocks Help Solve Mysteries of Planet Formation first appeared on Quanta Magazine | |||
| Random Surfaces Hide an Intricate Order | 18 Jun 2020 | 00:12:27 | |
Mathematicians have proved that a random process applied to a random surface will yield consistent patterns. The post Random Surfaces Hide an Intricate Order first appeared on Quanta Magazine | |||
| Rogue Worlds Throw Planetary Ideas Out of Orbit | 21 Feb 2024 | 00:21:48 | |
Scientists have recently discovered scores of free-floating worlds that defy classification. The new observations have forced them to rethink their theories of star and planet formation. Read more at QuantaMagazine.org. Music is “Light Gazing” by Andrew Langdon. | |||
| Where We See Shapes, AI Sees Textures | 04 Jun 2020 | 00:15:59 | |
To researchers’ surprise, deep learning vision algorithms often fail at classifying images because they mostly take cues from textures, not shapes. The post Where We See Shapes, AI Sees Textures first appeared on Quanta Magazine | |||
| What’s in a Name? Taxonomy Problems Vex Biologists | 21 May 2020 | 00:25:03 | |
Researchers struggle to incorporate ongoing evolutionary discoveries into an animal classification scheme older than Darwin. The post What’s in a Name? Taxonomy Problems Vex Biologists first appeared on Quanta Magazine | |||
| Bacterial Complexity Revises Ideas About ‘Which Came First?’ | 07 May 2020 | 00:20:45 | |
Contrary to popular belief, bacteria have organelles too. Scientists are now studying them for insights into how complex cells evolved. The post Bacterial Complexity Revises Ideas About ‘Which Came First?’ first appeared on Quanta Magazine | |||
| Ancient DNA Yields Snapshots of Vanished Ecosystems | 23 Apr 2020 | 00:24:17 | |
Surviving fragments of genetic material preserved in sediments allow scientists to see the full diversity of past life — even microbes. The post Ancient DNA Yields Snapshots of Vanished Ecosystems first appeared on Quanta Magazine | |||
| Computer Scientists Expand the Frontier of Verifiable Knowledge | 09 Apr 2020 | 00:16:59 | |
The universe of problems that a computer can check has grown. The researchers’ secret ingredient? Quantum entanglement. The post Computer Scientists Expand the Frontier of Verifiable Knowledge first appeared on Quanta Magazine | |||
| The Hidden Heroines of Chaos | 26 Mar 2020 | 00:19:28 | |
Two women programmers played a pivotal role in the birth of chaos theory. Their previously untold story illustrates the changing status of computation in science. Read more at quantamagazine.org. Music is “Clover 3” by Vibe Mountain. | |||
| Heat-Loving Microbes, Once Dormant, Thrive Over Decades-Old Fire | 12 Mar 2020 | 00:28:05 | |
In harsh ecosystems around the world, microbiologists are finding evidence that “microbial seed banks” protect biodiversity from changing conditions. The post Heat-Loving Microbes, Once Dormant, Thrive Over Decades-Old Fire first appeared on Quanta Magazine | |||
| Scientists Discover Exotic New Patterns of Synchronization | 27 Feb 2020 | 00:23:32 | |
In a world seemingly filled with chaos, physicists have discovered new forms of synchronization and are learning how to predict and control them. The post Scientists Discover Exotic New Patterns of Synchronization first appeared on Quanta Magazine | |||
| Cryptography That Is Provably Secure | 06 Feb 2020 | 00:11:58 | |
Researchers have just released hacker-proof cryptographic code — programs with the same level of invincibility as a mathematical proof. The post Cryptography That Is Provably Secure first appeared on Quanta Magazine | |||
| The Math That Tells Cells What They Are | 30 Jan 2020 | 00:17:21 | |
During development, cells seem to decode their fate through optimal information processing, which could hint at a more general principle of life. The post The Math That Tells Cells What They Are first appeared on Quanta Magazine | |||
| Why the Human Brain Perceives Small Numbers Better | 17 Apr 2024 | 00:21:16 | |
The discovery that the brain has different systems for representing small and large numbers provokes new questions about memory, attention and mathematics. Read more at QuantaMagazine.org. Music is “Quasi Motion” by Kevin MacLeod. | |||
| How Artificial Intelligence Is Changing Science | 16 Jan 2020 | 00:22:22 | |
The latest AI algorithms are probing the evolution of galaxies, calculating quantum wave functions, discovering new chemical compounds and more. Is there anything that scientists do that can’t be automated? The post How Artificial Intelligence Is Changing Science first appeared on Quanta Magazine | |||
| A World Without Clouds | 02 Jan 2020 | 00:26:17 | |
A state-of-the-art supercomputer simulation indicates that a feedback loop between global warming and cloud loss can push Earth’s climate past a disastrous tipping point in as little as a century. The post A World Without Clouds first appeared on Quanta Magazine | |||
| How the Brain Creates a Timeline of the Past | 19 Dec 2019 | 00:15:56 | |
The brain can’t directly encode the passage of time, but recent work hints at a workaround for putting timestamps on memories of events. The post How the Brain Creates a Timeline of the Past first appeared on Quanta Magazine | |||
| Foundations Built for a General Theory of Neural Networks | 05 Dec 2019 | 00:16:43 | |
Neural networks can be as unpredictable as they are powerful. Now mathematicians are beginning to reveal how a neural network’s form will influence its function. The post Foundations Built for a General Theory of Neural Networks first appeared on Quanta Magazine | |||
| The Brain Maps Out Ideas and Memories Like Spaces | 21 Nov 2019 | 00:25:06 | |
Emerging evidence suggests that the brain encodes abstract knowledge in the same way that it represents positions in space, which hints at a more universal theory of cognition. The post The Brain Maps Out Ideas and Memories Like Spaces first appeared on Quanta Magazine | |||
| Milestone Experiment Proves Quantum Communication Really Is Faster | 07 Nov 2019 | 00:10:58 | |
In a Paris lab, researchers have shown for the first time that quantum methods of transmitting information are superior to classical ones. The post Milestone Experiment Proves Quantum Communication Really Is Faster first appeared on Quanta Magazine | |||
| Mathematical Simplicity May Drive Evolution’s Speed | 31 Oct 2019 | 00:18:51 | |
Some researchers are using a complexity framework thought to be purely theoretical to understand evolutionary dynamics in biological and computational systems. The post Mathematical Simplicity May Drive Evolution’s Speed first appeared on Quanta Magazine | |||
| A Universal Law for the ‘Blood of the Earth’ | 26 Sep 2019 | 00:14:49 | |
Simple physical principles can be used to describe how rivers grow everywhere from Florida to Mars. The post A Universal Law for the ‘Blood of the Earth’ first appeared on Quanta Magazine | |||
| Quanta Writers and Editors Discuss Trends in Science and Math | 22 Nov 2018 | 01:05:34 | |
On November 16, 2018, more than 200 readers joined writers and editors from Quanta Magazine for a wide-ranging panel discussion that examined the newest ideas in fundamental physics, biology and mathematics research. The post Quanta Writers and Editors Discuss Trends in Science and Math first appeared on Quanta Magazine | |||
| Should Evolution Treat Our Microbes as Part of Us? | 26 Sep 2019 | 00:25:19 | |
How does evolution select the fittest “individuals” when they are ecosystems made up of hosts and their microbiomes? Biologist debate the need to revise theories. The post Should Evolution Treat Our Microbes as Part of Us? first appeared on Quanta Magazine | |||
| Echoes of Electromagnetism Found in Number Theory | 20 Mar 2024 | 00:20:39 | |
A new magnum opus posits the existence of a hidden mathematical link akin to the connection between electricity and magnetism. Read more at QuantaMagazine.org. Music is “Clover 3” by Vibe Mountain. | |||
| Amateur Mathematician Finds Smallest Universal Cover | 06 Sep 2019 | 00:11:46 | |
Through exacting geometric calculations, Philip Gibbs has found the smallest known cover for any possible shape. The post Amateur Mathematician Finds Smallest Universal Cover first appeared on Quanta Magazine | |||
| In the Nucleus, Genes’ Activity Might Depend on Their Location | 29 Aug 2019 | 00:15:12 | |
Using a new CRISPR-based technique, researchers are examining how the position of DNA within the nucleus affects gene expression and cell function. The post In the Nucleus, Genes’ Activity Might Depend on Their Location first appeared on Quanta Magazine | |||
| Machine Learning Confronts the Elephant in the Room | 15 Aug 2019 | 00:12:19 | |
A visual prank exposes an Achilles’ heel of computer vision systems: Unlike humans, they can’t do a double take. The post Machine Learning Confronts the Elephant in the Room first appeared on Quanta Magazine | |||
| The New Science of Seeing Around Corners | 01 Aug 2019 | 00:19:47 | |
Computer vision researchers have uncovered a world of visual signals hiding in our midst, including subtle motions that betray what’s being said and faint images of what’s around a corner. The post The New Science of Seeing Around Corners first appeared on Quanta Magazine | |||
| Major Quantum Computing Advance Made Obsolete by Teenager | 18 Jul 2019 | 00:14:24 | |
18-year-old Ewin Tang has proven that classical computers can solve the “recommendation problem” nearly as fast as quantum computers. The result eliminates one of the best examples of quantum speedup. The post Major Quantum Computing Advance Made Obsolete by Teenager first appeared on Quanta Magazine | |||
| A Math Theory for Why People Hallucinate | 05 Jul 2019 | 00:23:45 | |
Psychedelic drugs can trigger characteristic hallucinations, which have long been thought to hold clues about the brain’s circuitry. After nearly a century of study, a possible explanation is crystallizing. The post A Math Theory for Why People Hallucinate first appeared on Quanta Magazine | |||
| Closed Loophole Confirms the Unreality of the Quantum World | 20 Jun 2019 | 00:18:20 | |
A quickly closed loophole has proved that the “great smoky dragon” of quantum mechanics may forever elude capture. The post Closed Loophole Confirms the Unreality of the Quantum World first appeared on Quanta Magazine | |||
| To Remember, the Brain Must Actively Forget | 06 Jun 2019 | 00:19:39 | |
Researchers find evidence that neural systems actively remove memories, suggesting that forgetting may be the default mode of the brain. The post To Remember, the Brain Must Actively Forget first appeared on Quanta Magazine | |||
| The Peculiar Math That Could Underlie the Laws of Nature | 23 May 2019 | 00:26:27 | |
New findings are fueling an old suspicion that fundamental particles and forces spring from strange eight-part numbers called “octonions.” The post The Peculiar Math That Could Underlie the Laws of Nature first appeared on Quanta Magazine | |||
| To Make Sense of the Present, Brains May Predict the Future | 09 May 2019 | 00:29:52 | |
A controversial theory suggests that perception, motor control, memory and other brain functions all depend on comparisons between ongoing actual experiences and the brain’s modeled expectations. The post To Make Sense of the Present, Brains May Predict the Future first appeared on Quanta Magazine | |||
| Tiny Language Models Come of Age | 06 Mar 2024 | 00:20:48 | |
To better understand how neural networks learn to simulate writing, researchers trained simpler versions on synthetic children’s stories. Read more at QuantaMagazine.org. Music is “Thought Bot” by Audionautix. | |||
| Finally, a Problem That Only Quantum Computers Will Ever Be Able to Solve | 25 Apr 2019 | 00:11:50 | |
Computer scientists have been searching for years for a type of problem that a quantum computer can solve but that any possible future classical computer cannot. Now they’ve found one. The post Finally, a Problem That Only Quantum Computers Will Ever Be Able to Solve first appeared on Quanta Magazine | |||
| Why Earth’s Cracked Crust May Be Essential for Life | 11 Apr 2019 | 00:26:47 | |
Life needs more than water alone. Recent discoveries suggest that plate tectonics has played a critical role in nourishing life on Earth. The findings carry major consequences for the search for life elsewhere in the universe. The post Why Earth’s Cracked Crust May Be Essential for Life first appeared on Quanta Magazine | |||
| Overtaxed Working Memory Knocks the Brain Out of Sync | 28 Mar 2019 | 00:13:52 | |
Researchers find that when working memory gets overburdened, dialogue between three brain regions breaks down. The discovery provides new support for a larger concept about how the brain works. The post Overtaxed Working Memory Knocks the Brain Out of Sync first appeared on Quanta Magazine | |||