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Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 217 posts.
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Aerobic exercise can reduce the risk of metastatic cancer in mice: study
Tel Aviv University researchers find that exercise defeats cancer by increasing glucose consumption
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How do other animals see the world?
Take a look through the eyes of a dog, a spider and three other creatures.
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A single memory is stored across many connected brain regions
The mammalian brain stores a single memory across a widely distributed, functionally connected complex spanning many brain regions, rather than in just one or even a few places.
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Marijuana accelerates growth of HPV-related head and neck cancer (2020)
University of California San Diego School of Medicine researchers identified how THC from marijuana accelerates cancer growth in patients with human papillomavirus (HPV)-positive head and neck cancer.
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What comes up when you flush
Germophobes, brace yourselves. A team of CU Boulder engineers has revealed how tiny water droplets, invisible to the naked eye, are rapidly ejected into the air
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Nobel Prize in Chemistry Awarded to Bertozzi, Meldal, and Sharpless
The Nobel Prize in Chemistry 2022 was awarded jointly to Carolyn R. Bertozzi, Morten Meldal and K. Barry Sharpless "for the development of click chemistry and bioorthogonal chemistry"
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Are sprouted potatoes safe?
You are better off tossing potatoes that have turned green or grown sprouts. Eating them puts you at risk for toxicity from solanine and chaconine, two natural toxins found in green or sprouted potatoes.
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New type of ultraviolet light makes indoor air as safe as outdoors
A new type of ultraviolet light that is safe for people destroyed more than 98% of airborne microbes in a room within five minutes, a study found.
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Study: Time-Restricted Eating Improves Cardiovascular Health for Firefighters
In a recent collaborative effort, physicians with UC San Diego Health and scientists at the Salk Institute reported a form of intermittent fasting, called time-restricted eating, improved the health of study participants who had been diagnosed with metabolic syndrome.
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Vasa's sister ship Äpplet found
Marine archaeologists from Vrak - Museum of Wreck have found the wreck of the naval vessel Äpplet, Vasa's sister ship. The ship was first launched in 1629 and was built by the same master shipbuilder who completed the Vasa. The discovery was made within the research programme
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iPhone lidar with applications for the geosciences
Lidar (light detection and ranging) is a common remote sensing technique used to create high-resolution three-dimensional models of landscapes and built features. Lidar uses laser pulses to measure distances to the ground or other features. Traditionally, lidar scanners are mounted to airborne or terrestrial…
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Corn Cobs: Fuel of Nightmares
Earlier this year, in the bitter cold of Kansas winter, we began field testing our first scaled pyrolyzer, designed to process 10 tons of biomass per day. The pyrolyzer processed California wheat straw just fine. But now in Kansas, corn stover turned out to be a bit different. The bales not only had leaves and stalks…
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Britain's largest 'Sea Dragon' discovered in UK's smallest county
Every day is different when you work on a nature reserve, but nothing could have prepared our reserves team at Rutland Water Nature Reserve for the day when they made the palaeontological discovery of a lifetime.
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Earthworms after rain (2019)
What’s really happening when we see earthworms on a soggy sidewalk? It's probably not what you think.
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Health effects of the use of non-sugar sweeteners: a review and meta-analysis
Non-sugar sweeteners have been developed as an alternative to sugars and are widely used both as an ingredient in pre-packaged foods and beverages and added to food and beverages directly by the consumer.
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An extrasolar world covered in water?
With the help of instruments designed partly in Canada, a team of Université de Montréal astronomers have discovered an exoplanet that could be completely covered in water.
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Solar-powered system offers a route to inexpensive desalination
MIT researchers developed a desalination system that is more efficient and less expensive than previous methods. In addition to providing fresh water, the process could be used to treat contaminated wastewater or generate steam for sterilizing medical instruments, all without requiring a power source other than…
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New theory proposes ‘forgetting’ is a form of learning
The scientists behind the new theory suggest that rather than being a bug, forgetting may be a functional feature of the brain, allowing it to interact dynamically with the environment to enhance decision-making.
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Study: Electroshock therapy more successful for depression than ketamine
Therapeutic technique, portrayed unfavorably in films and TV shows, shows consistently better results with treatment-resistant depression
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Humanity’s broken risk perception is reversing global progress
Human activity and behaviour is contributing to an increasing number of disasters across the world, putting millions of lives and every social and economic gain in danger, warns a new UN report.
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Aerodynamics of Gravel Bikes
Aerodynamics are an important factor in gravel racing and riding. Gravel racing speeds are high—the fastest riders in the 200-mile Unbound average 20 mph (32 km/h) across the Flint Hills of Kansas. And many gravel races can be extremely windy. Optimizing the aerodynamics of a…