In this episode:
00:47 The brain-computer interfaces that help restore communicationPeople with certain neurological conditions can lose the ability to speak as a result of facial paralysis. This week, two teams demonstrate the potential of devices called brain-computer interfaces to help people in these situations communicate. These interfaces work by identifying the brain activity associated with the intent to say words, and converting this activity into speech-related outputs, such as text or audio. Both devices show marked improvements compared with previous interfaces, and show that the technology could represent a way to help restore communication to people with severe paralysis.
Research article: Metzger et al.
Research article: Willett et al.
News and Views: Brain implants that enable speech pass performance milestones
How wind-tunnel experiments could help athletes run the fastest marathon ever, and an analysis that could help explain why birds are the colours they are.
Research Highlight: Physicists find a way to set a new marathon record
Research Highlight: Which birds are drab and which dazzle? Predators have a say
As the climate warms, tropical forests around the world are facing increasing temperatures. But it’s unknown how much the trees can endure before their leaves start to die. A team has combined multiple data sources to try and answer this question, and suggest that a warming of 3.9 °C would lead to many leaves reaching a tipping point at which photosynthesis breaks down. This scenario would likely cause significant damage to these ecosystems’ role in vital carbon storage and as homes to significant biodiversity.
Research article: Doughty et al.
This time, a reexamination of Ötzi the iceman’s DNA suggests he had a different appearance, and the failure of a Russian mission to the moon.
Nature News: Ötzi the Iceman has a new look: balding and dark-skinned
Nature News: Russian Moon lander crash — what happened, and what’s next?
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Audio long-read: The quest to prevent MS — and understand other post-viral diseases
We could still limit global warming to just 2˚C — but there's an 'if'
Coronapod: Infected immune cells hint at cause of severe COVID
Why do naked mole rats live as long as giraffes?
Five years in the coldest fridge in the known Universe
Audio long-read: A more-inclusive genome project aims to capture all of human diversity
Winding roads could make you a better navigator
Milky Way's origin story revealed by 250,000 stars
Coronapod: How vaccine complacency is plaguing 'COVID zero' strategies
The coin toss of Alzheimer's inheritance
The vest that can hear your heartbeat
The AI that deciphers ancient Greek graffiti
Coronapod: why stopping COVID testing would be a mistake
COVID stimulus spending failed to deliver on climate promises
Audio long-read: The race to save the Internet from quantum hackers
Dinosaur-destroying asteroid struck in spring
Tongan volcano eruption leaves scientists with unanswered questions
Coronapod: How African scientists are copying Moderna's COVID vaccine
RNA test detects deadly pregnancy disorder early
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