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How do transistors work, anyway?
The internet is littered with explanations of how transistors work. Most of them don't really explain anything.
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 399 posts.
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Re-using the heat in bathwater in Britain
FROM BEING A WASTE TO THE BATHER AND COUNTRY, AND FOR MAKING IT BENEFICIAL TO THE PUBLICK
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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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Some of the forces blocking new ideas in science
Some of the forces blocking really new ideas in science
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Why are male testosterone levels falling?
Science News, Physics, Science, Philosophy, Philosophy of Science
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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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One does not simply destroy a nuclear weapon
It's the isotopes...
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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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US military's mysterious X-37B space plane zooms toward orbital record
That Earth-circling U.S. military X-37B robotic space drone is closing in on a new long-duration record.
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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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Helion Needs You
Helion has been progressing even faster than I expected and is on pace in 2024 to 1) demonstrate Q > 1 fusion and 2) resolve all questions needed to design a mass-producible fusion generator. ...
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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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Chaos: The real problem with quantum mechanics
Science News, Physics, Science, Philosophy, Philosophy of Science
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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.