Category Archives: Science

Science: Fossil Mystery Solved, A Silk Mother Of Pearl, Bolivian Amazon

The puzzle of PalaeospondylusOver a hundred years ago, archaeologists discovered fossils of the aquatic animal Palaeospondylus. But since then researchers have been unable to place where this animal sits on the tree of life. Now, new analysis of Palaeospondylus’s anatomy might help to solve this mystery.

08:18 Research Highlights

A strong, silk-based version of mother of pearl, and the parrots that use their heads when climbing.

Research Highlight: Silk imitates mother of pearl for a tough, eco-friendly material

Research Highlight: A ‘forbidden’ body type? These parrots flout the rules

10:51 How lasers revealed an ancient Amazonian civilization

Archaeologists have used LiDAR to uncover evidence of an ancient civilization buried in the Bolivian Amazon. The team’s work suggests that this area was not as sparsely populated in pre-Hispanic times as previously thought.

Research article: Prümers et al.

News and Views: Large-scale early urban settlements in Amazonia

Nature Video: Lost beneath the leaves: Lasers reveal an ancient Amazonian civilisation

16:21 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, the debate surrounding the first transplant of pig kidneys into humans, and the plants grown in lunar soil.

Nature News: First pig kidneys transplanted into people: what scientists think

Reviews: Top New Science Books (Nature Magazine)

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Beyond the Hype

Fiona Fox Elliott & Thompson (2022)

It is 20 years since journalist Fiona Fox set up the influential Science Media Centre in London, to persuade more scientists to engage with the media. This absorbing, detailed book is her memoir of that period — not, as she makes clear, an “objective record”. Separate chapters deal with controversies such as “Climategate”, “Frankenfoods”, the politicization of science, sexism in research and how the current pandemic epitomizes an “age-old dichotomy” between the need for simple public messaging and the messy complexity of science.

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Bitch

Lucy Cooke Doubleday (2022)

“Try explaining the need to be passive” to a female spotted hyena (Crocuta crocuta), writes zoologist and author Lucy Cooke, “and she’ll laugh in your face, after she’s bitten it off”. She is dominant in rough play, scent‑marking and territorial defence. By analysing numerous animals, this sparkling attack on scientific sexism draws on many scientists — of multiple genders — to correct stereotypes of the active male versus passive female. Many such concepts were initiated by Charles Darwin, who is nevertheless Cooke’s “scientific idol”.

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Beyond Coding

Marina Umaschi Bers MIT Press (2022)

Early-childhood technologist Marina Bers developed the KIBO robot, which young children can program with coloured, barcoded wooden blocks to learn computer coding. It is the chief character in her engaging book, which presents four key ways to consider coding for kids: as a “playground”; “another language”; a “palette of virtues”; and a “bridge”. The palette includes infusing ethics and moral education into programming. The bridge involves finding points of connection between diverse cultural, ethnic and religious groups.

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Nuclear Bodies

Robert A. Jacobs Yale Univ. Press (2022)

The Japanese word hibakusha originally described the victims of the atomic bombs dropped on Japan in 1945. Since the 2011 Fukushima nuclear power-plant disaster, the term has been widely extended to denote worldwide victims of radiation exposure. Yet it does not appear in the Oxford English Dictionary: evidence that “these ‘global hibakusha’ have been largely invisible to us”, because of their relative political insignificance, notes Hiroshima-based historian Robert Jacobs in this grimly important analysis of the cold war.

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Travels with Trilobites

Andy Secher Columbia Univ. Press (2022)

The fascinating marine invertebrate known as a trilobite belongs to the beginning of complex animal life. It appeared some 521 million years ago, and endured for more than 250 million years, evolving more than 25,000 recognized species. Palaeontologist Andy Secher coedits the trilobite website for the American Museum of Natural History in New York City. He owns more than 4,000 trilobite fossils, many of which are pictured in this paean to “the omnipresent monarchs of the world’s ancient se

Cover Preview: Science Magazine – May 20, 2022

Enhanced charge density wave coherence in a light-quenched, high-temperature superconductor

The deubiquitinase USP8 targets ESCRT-III to promote incomplete cell division

All topological bands of all nonmagnetic stoichiometric materials

Cover Preview: Nature Magazine – May 19, 2022

Nature Magazine, May 19, 2022 – At industrial scales, chemical reactions are typically driven by applying continuous heat to the reactants. In this week’s issue, Liangbing Hu and his colleagues show that pulsed heating and quenching can enhance synthetic performance while also saving energy.

Volume 605 Issue 7910

The researchers use a programmable electric current to switch between high and low temperatures very quickly — typically 0.02 seconds on, 1.08 seconds off. Rapidly quenching the reaction gives high selectivity, maintains catalyst stability and reduces energy usage. The cover image illustrates the heater in action for the pyrolysis of methane — the model reaction the team tested. Methane molecules travel through the pores of the high-temperature heater and are selectively converted into useful products.

Previews: New Scientist Magazine – May 21, 2022

COVER STORIES

  • CULTURE Regenesis review: Farming is killing the planet but we can stop it
  • FEATURES Why the next big solar storm might hit Earth without warning
  • FEATURES The female body is misunderstood and this is why, says Rachel E. Gross
  • FEATURES How the massive dogs bred to protect livestock could save wolves too

Science: Galaxies Without Dark Matter, High Helium Levels, Solar Energy Jump

Dark matter makes up most of the matter in the Universe, and is thought to be needed for galaxies to form. But four years ago, astronomers made a perplexing, and controversial discovery: two galaxies seemingly devoid of dark matter. 

This week the team suggests that a cosmic collision may explain how these, and a string of other dark-matter-free galaxies, could have formed.

Research article: van Dokkum et al

News and Views: Giant collision created galaxies devoid of dark matter

08:39 Research Highlights

How fossil fuel burning has caused levels of helium to rise, and a high-efficiency, hybrid solar-energy system.

Research Highlight: Helium levels in the atmosphere are ballooning

Research Highlight: Flower power: ‘Sunflower’ system churns out useful energy

10:49 Researchers experiences of the war in Ukraine

We hear the stories of scientists whose lives have been affected by Russia’s invasion of Ukraine, including researchers who have become refugees, soldiers and activists in the face of a horrifying conflict.

Nature Feature: How three Ukrainian scientists are surviving Russia’s brutal war

20:46 Imaging the black hole at the centre of the Milky Way

Last week, a team of researchers released an image of Sagittarius A*, the supermassive blackhole at the centre of our galaxy. We hear how they took the image and what it is revealing about these enormous objects.

Nature News: Black hole at the centre of our Galaxy imaged for the first time

Previews: Scientific American – June 2022

June 2022 – Volume 326, Issue 6

FEATURES

NEUROSCIENCE

How the Brain ‘Constructs’ the Outside World

Neural activity probes your physical surroundings to select just the information needed to survive and flourish

By György Buzsáki

NEUROSCIENCE

U.S. Kids Are Falling behind Global Competition, but Brain Science Shows How to Catch Up

Paid parental leave and high-quality child care improve children’s brain development and prospects for a better future

By Dana Suskind and Lydia Denworth

PALEONTOLOGY

How Mammals Conquered the World after the Asteroid Apocalypse

They scurried in the shadows of dinosaurs for millions of years until a killer space rock created a new world of evolutionary opportunity

By Steve Brusatte

ASTROPHYSICS

Mysterious Fast Radio Bursts Are Finally Coming into Focus

Twenty years after their initial detection, enigmatic blasts from the sky are starting to deliver tentative answers, as well as plenty of science

By Adam Mann

Brain Health: The Benefits Of Intermittent Fasting

Although intermittent fasting is most widely known as a weight-loss strategy, emerging research suggests that it could have benefits for brain health and cognition. But does it actually work, are there any drawbacks and how long would you have to fast to see benefits? WSJ’s Daniela Hernandez breaks down what’s known and what’s not about the neuroscience of intermittent fasting.

Timeline: 0:00 Could intermittent fasting help our brains work better and longer? 0:31 How long would you have to fast to see any potential cognitive benefits? 1:04 How intermittent fasting could affect your ability to focus 2:27 Potential mood-related benefits of intermittent fasting 2:48 How intermittent fasting can affect brain health 4:03 Potential drawbacks of intermittent fasting