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    Frozen Head review: Why do some people want to be frozen after death?

    Mike Darwin was president of a cryonics company called Alcor Life Extension FoundationSipa/Shutterstock
    Frozen Head
    Hosted by Alaina Urquhart and Ash Kelley
    Wondery
    FROM his childhood, Laurence Pilgeram was preoccupied with death. He would vividly imagine his parents in their caskets, wondering why people had to die. Pilgeram went on to build a lab on the family farm in Montana and experimented on guinea pigs, injecting bovine growth hormone into their pituitary glands to see if he could stop ageing and dying. “He was just so afraid of death,” his brother … More

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    See the top shots in the Woman Science Photographer of the Year award

    Lianna Nixon; Leap of ScienceLianna Nixon
    FEMALE scientists are still a minority, making up a third of all researchers. In celebration and support of the UN’s International Day of Women and Girls in Science, the UK-based Royal Photographic Society held its first Woman Science Photographer of the Year competition.
    Margaret LeJeuneAdvertisment
    “Representation helps to invite the next generation to follow their curiosity and get involved in the fields of science and art,” said Margaret LeJeune, who took the adult category’s top prize for her image titled Watershed Triptych (pictured above). It shows maps of the three largest watersheds in the US, lit by bioluminescent marine algae called dinoflagellates. Though their glow looks dazzling, the toxins some of them release can pose a threat to ocean life.
    Kelly Zhang
    The Young Woman Science Photographer award, open to under-18s, went to Kelly Zhang for The Beauty of Soap Bubbles (pictured above) – a trippy shot of the iridescent surfaces of these delicate spheres. Finalists also included Lianna Nixon for Leap of Science (main image), which provides a snapshot of the recent MOSAiC Expedition that probed how the Arctic will be affected by climate change. Here, researchers are searching for a spot to measure the surface reflectivity of sea ice.
    Some shortlisted photos are shown in the trio of images below.
    Jindra Jehu
    A paper and engine oil structure transformed by the growth of pink oyster mushrooms, by Jindra Jehu (above);
    Lina Yeleuova
    A nanosatellite launched in 2022 to analyse air pollution, by Lina Yeleuova, runner-up in the under-18 category (above);
    Irina Petrova Adamatzky
    The skin of a corn snake under UV light, by Irina Petrova Adamatzky (above).

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    Don't Miss: The Mandalorian's third season, streaming on Disney+

    Watch
    The Mandalorian begins its third season with a journey to Mandalore, spiritual home of protagonist Din Djarin and his fellow helmet-wearing warriors. The Star Wars spin-off is now streaming on Disney+.

    Read
    The Lives of Beetles are examined by entomologist Arthur Evans in a handsomely illustrated book, full of the latest findings. Considering that beetles make up one-fifth of all living species, it is remarkably concise. On sale from 7 March.

    Visit
    British Science Week is a 10-day, UK-wide celebration of science, technology, engineering and mathematics run by the British Science … More

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    Animalia review: Intriguing sci-fi thriller, shame about the aliens

    Faith, freedom and spirituality are key to a well-made sci-fi psychological thriller, Animalia. But writer-director Sofia Alaoui leaves the aliens dangling in an unsatisfying ending

    Humans

    24 February 2023

    By Davide Abbatescianni
    Oumaïma Barid appears in Animalia by Sofia Alaoui.Courtesy of Sundance Institute
    Animalia
    Sofia Alaoui (director)
    Sundance Film Festival premier
    Animalia, a French-Moroccan-Qatari co-production that premiered at last month’s Sundance Film Festival, opens with an intriguing set-up. A deeply pious pregnant woman of modest origins, Itto (Oumaïma Barid), looks forward to a day of quiet when her rich husband Amine (Mehdi Dehbi) and his family go away on business.
    On the same day, a mysterious state of emergency is declared nationwide. Amine remains stuck somewhere on the other side of Morocco, while … More

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    Some of the earliest modern humans in Europe used bows and arrows

    A site in France briefly occupied by modern humans is littered with stone points that were probably used as arrowheads, showing that bows and arrows were used in Europe much earlier than we thought

    Humans

    22 February 2023

    By Michael Le Page
    Reproductions of arrows with flint heads like those found at Grotte Mandrin in FranceLudovic Slimak
    Bows and arrows were first used in Europe much earlier than we previously thought. More than 100 arrowheads have been found in a rock shelter briefly used by a group of modern humans 54,000 years ago in an early foray into Neanderthal territory.
    “It’s incredible how many we have,” says Laure Metz at Aix-Marseille University in France.
    Metz is part of a team that has been excavating a rock shelter called Grotte Mandrin in southern France. This shelter was used first by Neanderthals more than 80,000 years ago, and then by modern humans from about 45,000 years ago – around the time that modern humans displaced Neanderthals all across Europe.Advertisement
    But, last year, the team reported that, for a 40-year period around 54,000 years ago, Grotte Mandrin was used as a hunting camp by a small group of modern humans. The clinching evidence came from a baby tooth that isn’t Neanderthal.
    In the layers of earth from this time, Metz and her colleagues have now reported finding more than a thousand small stone points around 1 or 2 centimetres long. Of these, around 100 have been identified as broken or complete arrowheads, as they have one or more signs of impact damage resembling those seen when the team used newly made stone points as arrowheads. The others may be arrowheads too, but the researchers are unsure.
    “The tips from Mandrin could hardly have been used in any other way than to tip arrows,” says Marlize Lombard at the University of Johannesburg in South Africa, who wasn’t involved in the study.
    Researcher Ludovic Slimak holding a flint point from Grotte MandrinPhilippe PSAILA
    Most of the Mandrin arrowheads are broken. Some are arrowhead tips that broke off inside animals and were brought back to camp inside butchered meat, says Metz. Many of these show signs of charring from fires.
    The parts that remained attached to the shaft have also been found. Because of the work involved in making arrow shafts, says Metz, when an arrowhead broke, hunters would have brought the arrow back to camp and replaced the arrowhead, discarding the broken one.

    Before now, the earliest unambiguous evidence for bows and arrows in Europe came from finds in Stellmoor, Germany, dating to around 10,000 years ago, says Metz. However, it was considered likely that the modern humans who displaced Neanderthals around 45,000 years ago had bows and arrows.
    These humans were definitely using stone-tipped projectiles; the issue is that, with larger stone points, there is no way to tell if they were spearheads or arrowheads, says Metz. At some prehistoric sites in Europe, evidence of arrowheads may have been missed – archaeologists used to throw away smaller bits of stone, she says, regarding them as having no value.
    Bows and arrows were first developed in Africa at least 70,000 years ago. Lombard and others have found stone and bone arrowheads at several sites in southern Africa dating back as far as this. The modern humans who moved out of Africa may have spread the technology around the world.
    Despite presumably seeing bows in action, Neanderthals never developed them, says Metz. They kept using large, stone-tipped spears that were either thrust directly or thrown by hand, and so required close contact with their prey.
    The team has found no evidence that the arrows were used in conflict, but Metz says warfare is so ubiquitous in human societies that she is convinced it took place in prehistory too. She says that, while it is possible that this small group of modern humans was wiped out by Neanderthals despite having technological advantages such as bows and arrows, we just don’t know what happened to them. “We have no idea,” she says.

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    Next Exit film review: New tale of the afterlife takes a wrong turn

    Two volunteers sign up for euthanasia to help a research project when evidence of consciousness after death emerges. The idea’s great, but the script could use a bit more life

    Humans

    22 February 2023

    By Simon Ings
    Teddy (Rahul Kohli) contronts his father (Marcelo Tubert)Magnet releasing
    Next Exit
    Mali Elfman
    Apple TV
    FROM out of nowhere, a chink of light appears. With painful slowness, it grows stronger: we are inching towards a half-open door. Beyond the door, everything seems normal. A little boy plays a game of pretend. At least, that is what we think. Soon enough we learn what is really going on: he is playing cards with his dead father.
    Nothing else in Mali Elfman’s debut feature lives up to this unsettling opening, though there is a … More

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    How to use the science of fat to make delicious, confit food

    Fat gets a bad rap, but it is key to making enjoyable foods like confit pork. You can also use the confit method for parsnips, says Sam Wong

    Humans

    22 February 2023

    By Sam Wong
    PhotoCuisine/Viel, Pierre Louis/StockFood
    FAT is a controversial subject in food science. We have all been told from an early age that it is unhealthy and something we should try to eat less of. But as we have said in New Scientist before, the science that led us to fear it is deeply flawed, and many studies have found that cutting down on fat brings no clear health benefits.
    In fact, fats are an essential part of our diet, a vital aid to cooking and key to what makes many of our favourite foods, such as chocolate, so enjoyable. To make smarter … More