Nature Podcast17 Jan 2024

This AI just figured out geometry — is this a step towards artificial reasoning?

In this episode:

0:55 The AI that deduces solutions to complex maths problems

Researchers at Google Deepmind have developed an AI that can solve International Mathematical Olympiad-level geometry problems, something previous AIs have struggled with. They provided the system with a huge number of random mathematical theorems and proofs, which it used to approximate general rules of geometry. The AI then applied these rules to solve the Olympiad problems and show its workings for humans to check. The researchers hope their system shows that it is possible for AIs to ‘learn’ basic principles from large amounts of data and use them to tackle complex logical challenges, which could prove useful in fields outside mathematics.

Research article: Trinh et al.

09:46 Research Highlights

A stiff and squishy ‘hydrospongel’ — part sponge, part hydrogel — that could find use in soft robotics, and how the spread of rice paddies in sub-Saharan Africa helps to drive up atmospheric methane levels.

Research Highlight: Stiff gel as squishable as a sponge takes its cue from cartilage

Research Highlight: A bounty of rice comes at a price: soaring methane emissions

12:26 The food-web effects of mass predator die-offs

Mass Mortality Events, sometimes called mass die-offs, can result in huge numbers of a single species perishing in a short period of time. But there’s not a huge amount known about the effects that events like these might be having on wider ecosystems. Now, a team of researchers have built a model ecosystem to observe the impact of mass die-offs on the delicate balance of populations within it.

Research article: Tye et al.

20:53 Briefing Chat

An update on efforts to remove the stuck screws on OSIRIS-REx’s sample container, the ancient, fossilized skin that was preserved in petroleum, and a radical suggestion to save the Caribbean’s coral reefs.

OSIRIS-REx Mission Blog: NASA’s OSIRIS-REx Team Clears Hurdle to Access Remaining Bennu Sample

Nature News: This is the oldest fossilized reptile skin ever found — it pre-dates the dinosaurs

Nature News: Can foreign coral save a dying reef? Radical idea sparks debate

Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.

Hosted on Acast. See acast.com/privacy for more information.

Det här avsnittet är hämtat från ett öppet RSS-flöde och publiceras inte av Podme. Det kan innehålla reklam.

Avsnitt(926)

Briefing Chat: The Bunsen burner myth that turns out to be just hot air

Nature staff discuss an AI tool that can assess the impact of nine billion mutations — plus, how the Bunsen burner’s reputation for sterilization may be based on tradition alone.00:21 Deepmind’s new t...

11 Sep 15min

Phone tutoring boosts math scores when schools are forced to close

In this episode:00:46 How telephone teaching could boost education during school shutdownsNature: Pick up the phone! Phone calls with tutors keep kids learning when schools shut down11:42 Research Hig...

9 Sep 21min

Briefing Chat: How 1,000 pairs of buried underpants helped measure soil health

In this episode:00:21 Our picks of this year’s Ig Nobel prizesNature: Buried underpants and a new definition of kissing win 2026 Ig Nobel prizes07:47 Massive xenon experiment detects tantalizing hint ...

4 Sep 12min

Audio long read: Could mending damaged DNA prolong life?

Scientists are amassing evidence that unrepaired or poorly repaired DNA damage underlies many of the hallmarks of ageing. This has led to research into whether boosting DNA repair can keep people heal...

2 Sep 18min

Briefing Chat: How Dolly Parton left her mark on science

In this episode:00:18 Researchers celebrate Dolly Parton's contributions to scienceNature: Dolly Parton dies aged 80 — researchers celebrate her contributions to science08:40 Phase III trial of melano...

28 Aug 14min

Highest-ever ocean temperatures recorded as El Niño intensifies

Why extreme temperatures are expected to weaken ocean carbon sinks — plus, how mitochondrial injections could treat vision loss.00:46 The world’s oceans reach a record temperatureNature: Ocean tempera...

26 Aug 19min

Briefing Chat: New narcolepsy drug could unlock host of novel brain therapies

Nature staff discuss how an FDA-approved drug for narcolepsy could have promise beyond the condition, and the longest-lived human brain organoids yet.00:28 The promise of a new narcolepsy drugNature: ...

21 Aug 12min

A black hole's spin could finally be measured by a high-speed star

Star orbiting close to Sagittarius A* could reveal its spin — plus, how exoskeletons might change the way humans move.00:46 The star that could reveal a black hole’s spinResearch article: Dayem et al....

19 Aug 29min