US science raises its voice for gun control

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A person in heat protective gear and a red hardhat works as the copper flows into molds at a smelting plant in China.

Metals can be missing at any phase of their professional lifespan — including through smelting.Credit history: He Huawen/VCG by way of Getty

A analyze looking at the lifetime cycles of 61 commercially applied metals finds that additional than 50 % have a lifespan of a lot less than 10 several years. Exceptions include things like gold, which stays in use for hundreds of years and can be repurposed many situations, as perfectly as iron and lead. “The for a longer period we use metals, the significantly less we have to have to mine,” notes industrial ecologist and co-creator Christoph Helbig. He indicates one way to boost metals’ financial lifetime: mandating that new products be made with reused substance.

Nature | 4 min browse

Scrap metal: End-of-life recycling rates and loss rates for metals on the periodic table.

Resource: Ref. 1

Astronomers are worried about the affect of satellite ‘megaconsteallations’, this kind of as SpaceX’s Starlink Web network, which already consist of 1000’s of satellites — and there are programs to start tens of 1000’s more. If that happens, at some latitudes and moments of calendar year, a significant quantity of ‘stars’ seen to the naked eye will really be satellites. The Global Astronomical Union is about to debut resources to assist telescope operators predict satellite destinations so that they can position their instruments somewhere else. But SpaceX and other satellite organizations are however having difficulties to find alternatives. “This is an unsustainable trajectory,” states astronomer Meredith Rawls.

Character | 7 min go through

Capabilities & view

Top journal Science and magazine Scientific American have concurrently printed impassioned editorials calling for alterations to gun legislation in the United States.

“The science is abundantly very clear,” produce the editors of Scientific American. “More guns do not prevent criminal offense. Guns eliminate extra youngsters each and every year than auto incidents. A lot more young children die by gunfire in a year than on-responsibility law enforcement officers and lively armed service customers. Guns are a community health and fitness crisis, just like COVID, and in this, we are failing our young children, over and about again.”

“Scientists really should not sit on the sidelines and view other folks fight this out,” argues Science editor-in-main H. Holdenr Thorp. “If youngsters do not come to feel harmless, they can not find out. And a country that can’t discover are unable to thrive. A country of little ones threatened by gun violence does not have a future.”

Science | 5 min read & Scientific American | 6 min study

The variety of COVID-19 circumstances and fatalities per capita in Japan has been considerably reduced than in peer nations. Japan has various exclusive traits: it has the world’s oldest population, its land is densely populated and its constitution prohibits rigorous lockdowns. Whilst other nations around the world concentrated on disinfection, Japan emphasised avoiding sanmitsu, the ‘3Cs’: closed environments, crowded circumstances and close-call configurations. Virologist Hitoshi Oshitani, who advises the Japanese govt on its pandemic reaction, seems to be back on what worked and considers what the potential could hold.

Character | 5 min read

Biogeochemist Marilyn Fogel pioneered the use of isotope ratios to remedy queries across matters as diversified as palaeoecology, astrobiology, nutrient cycling and local climate change. Fogel has died aged 69. Her energetic and humorous web site, Isotope Queen, incorporates 34 entries beneath the tag ‘Don’t take oneself too seriously’. Equally at home in the laboratory and the field, Fogel was recognized for her generous mentoring of early-career gals. “The astrobiology neighborhood has lost just one of its best,” wrote Andrew Steele, Jennifer Eigenbrode and Tim Lyons, astrobiologists at NASA, where by Fogel labored for far more than a 10 years.

The Washington Article | 5 min go through & Astrobiology at NASA | 5 min study

Santiago Ramón y Cajal went from an “inattentive, lazy, disobedient, and annoying” little one (in the terms of a disgruntled trainer) to a Nobel-prizewinning neuroanatomist. A new biography by science author Benjamin Ehrlich paints a vivid photograph of Cajal’s lifetime but stumbles when putting his discoveries into context, writes reviewer and science journalist Alison Abbott.

Character | 5 min read through

Above a hundred a long time in the past, palaeontologists uncovered fossils of Palaeospondylus, a smaller, fish-like animal that resembled a tadpole and was, no far more than a few centimetres very long and that resembled a tadpole. Since then, scientists have argued above the place the creature sits on the tree of lifestyle. Now, an X-ray investigation of Palaeospondylus’s anatomy may well help to remedy this mystery.

Character Podcast | 26 min listen

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