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Shutting down nuclear power could increase air pollution: study
An MIT study shows that if U.S. nuclear power plants are retired, the burning of coal, oil, and natural gas to fill the energy gap could cause more than 5,000 premature deaths.
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The latest blog posts to take off on Hacker News. 2,419 posts.
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Mach 3.5 Over Libya in an SR-71 Blackbird
In April 1986, following an attack on American soldiers in a Berlin disco, President Reagan ordered the bombing of Muammar Qaddafi's terrorist camps in Libya. My duty was to fly over Libya and take photos recording the damage our F-111's had inflicted. Qaddafi had established a 'line of death,' a territorial marking…
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Greenland ice sheet is close to a melting point of no return
Once we emit about 1000 gigatons of carbon, much of the massive ice sheet will melt irreversibly. We’ve emitted 500 gigatons so far.
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A nasal spray protects against coronavirus including immune-evasive variants
Researchers have developed a molecule that is, when administered nasally, extremely effective in preventing the disease caused by all known variants of the SARS-CoV-2 virus. The molecule can be a key tool in preparing for future pandemics, as it is aimed at preventing both the transmission and spread of the virus.
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Any type of hormonal contraceptive may increase risk of breast cancer
An analysis of data by researchers at Oxford Population Health’s Cancer Epidemiology Unit has shown that use of progestogen-only hormonal contraceptives is associated with a 20-30% higher risk of breast cancer. The results are published in PLOS Medicine.
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Making Steel with Electricity
The Siderwin research project tested a new method of steelmaking that uses direct electrolysis of iron oxide in a pilot plant in France. The steelmaker ArcelorMittal now announced that it wants to commercialize the technology.
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Immune system cells in the gut linked to stress-induced depression
Johns Hopkins Medicine study adds to evidence that T cell-driven changes in the gut may affect brain function associated with depressive symptoms
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DIY Nitrogen TEA Laser (2020)
Abstract : in the cover image the homebuilt TEA nitrogen laser in use at PhyscsOpenLab. The entire l
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Low-cost open source device can measure air pollution anywhere
Flatburn is an open-source, mobile pollution detector from the MIT Senseable City Lab intended to let people measure air quality cheaply.
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The water technology behind Avatar: The Way of Water
Learn more about the CGI technology created using Unity Wētā Tools to produce the water in Avatar: The Way of Water.
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Knots smaller than human hair make materials unusually tough
A micro-architected material made from tiny knots proves tougher and more durable than unknotted counterparts.
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GNU Octave 8.1
GNU Octave version 8.1.0 has been released and is now available for download. An official Windows binary installer is available. For mac...
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Ultra-processed foods may contribute to cognitive decline
Surprisingly, even packaged foods that contain healthy components can qualify as ultra-processed. Jamie Grill Photography/Tetra Images via Getty Images Sara N. Burke, University of Florida Scientists have known for years that unhealthy diets – particularly those that are high in fat and sugar – may cause detrimental…
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Royal Astronomical Society: all journals to publish as open access from 2024
The Royal Astronomical Society (RAS) has today announced that all journals published by the Society will be Open Access (OA) from January 2024. This move will enable...
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Early-life stress can disrupt maturation of brain’s reward circuits
UC Irvine discovery offers new therapeutic target for treating mental illness
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Physically Demanding Work Tied to Male Fertility
Occupational factors associated with higher sperm concentrations and serum testosterone
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Mysterious object is being dragged into the black hole at the Milky Way’s center
Research by UCLA and Keck Observatory scientists concluded that the object, X7, could be a debris cloud from a stellar collision.
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Excess weight, obesity more deadly than previously believed
New CU Boulder research finds that overweight populations have a 22% higher mortality risk than those of healthy weight, while obese populations have as much as
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PFAS can suppress white blood cells’ ability to destroy invaders
GenX can suppress some white blood cells' ability to kill invaders.
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Multiple Sclerosis discovery could end disease's chronic inflammation
A new study IDs a key contributor to the hyperactive autoimmune response and neuroinflammation that are the hallmarks of multiple sclerosis.
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Webb telescope spots super old, massive galaxies
In a new study, CU Boulder astrophysicist Erica Nelson and her colleagues spotted six "fuzzy dots" of light in images from the James Webb Space Telescope. The
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Chemists create methane fuel from sun, carbon dioxide and water (2022)
UChicago breakthrough creates methane fuel from sun, carbon dioxide and water
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Vinyl Chloride and the Ohio Train Derailment
The recent Ohio train derailment and subsequent fire that released vinyl chloride into the environment has been a terrifying experience for the nearby population. The accident rekindles memories of the 1979 train accident in Mississauga, Ontario, when over 200,000 people had to be evacuated after a wheel bearing…
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Black holes as the source of dark energy
New research suggests that as our universe expands, black holes gain mass, and this connection between black holes and the universe's expansion is the source of dark energy.
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Leonardo da Vinci’s experiments explored gravity as a form of acceleration
A new look at da Vinci’s papers reveals his insightful attempts to probe the nature of gravity 500 years ago