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The most popular blog posts about science & space on Hacker News. 4,454 posts.
Over the last few months, Baker and I have been digging in deep on Heat Pumps . I'm putting my explorations here on pause but wanted to write up everything we've learned over the last few months.
Two doses of the AstraZeneca-Oxford University COVID-19 vaccine were ineffective against mild-to-moderate infections with the B1351 variant first identified in South Africa, according to a phase 1b-2 clinical trial published today in the New England Journal of Medicine .
[Note that this article is a transcript of the video embedded above.] On January 28, 2022, about an hour before dawn, the four-lane Fern Hollow Bridge in Pittsburgh, Pennsylvania, collapsed without warning. Five vehicles, including an articulating bus, fell with the bridge, and another car drove o
What is the most rectangular country?
Embracing your darker moods can actually make you feel better in the long run, psychologists find
The Nobel Prize in Physics 2022 was awarded jointly to Alain Aspect, John F. Clauser and Anton Zeilinger "for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science"
An international team including Oxford physicists has observed a long-predicted effect of gravity on a falling quantum object for the first time. The study provides an experimental connection between quantum physics and Einstein's theory of gravity.
Uncovering a century-old misinformation
Cliff-edged fitness functions and the evolution of schizophrenia
Penn State researchers found that the maximum wet-bulb temperature humans can endure is lower than previously thought — about 31°C wet-bulb or 87°F at 100% humidity — even for young, healthy subjects. The temperature for older populations, who are more vulnerable to heat, is likely even lower.
Science News, Physics, Science, Philosophy, Philosophy of Science
Harvard’s Marc Lipsitch said evidence indicates that the international cordon keeping coronavirus cases bottled up in China is a leaky one, and it’s likely that the relative handful of global cases reported so far are undercounted. If true, that will lead to widespread illness internationally, including in the U.S.
A study of over 60,000 people who were followed for as long as two decades found that people’s perceptions about their level of activity have a more significant effect on their longevity than the...
My son (5y) asked me today: If there were a kind of a fireman's pole from the Moon down to the Earth, how long would it take to slide all the way from the Moon to the Earth?
Frequency modulation (FM) is more robust to noise than amplitude modulation (AM) because static itself is primarily a form of amplitude modulation.
The biggest energy story of the last fifteen years is the rise of solar photovoltaics, also known as solar PV or simply solar panels.
I shared a controversial take the other day at an event and I decided to write it down in a longer format: I’m afraid AI won't give us a compressed 21st century.
The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests. "Remarkab...
Ian Harris explains that more than half of commonly performed surgical operations may be placebos. Adequate studies using a blinded control group are essential. Ian Harris, a Professor of Orthopaedic Surgery at the University of New South Wales in Sydney, Australia, wrote a book titled Surgery, The Ultimate Placebo. I…
Making a cheap and simple radar with a range of about 100 meters.
Our mission is to lead the delivery of sustainable fusion energy to maximise scientific and UK economic benefit.
People often ask me "What good is Relativity?" It is a commonplace to think of Relativity as an abstract and highly arcane mathematical theory that has no consequences for everyday life. This is in fact far from the truth.
Soviet rocket engines - this article is about their history, their development, their use and their rockets.
Scientists detect the lowest mass dark object currently measured
Analysis of mind-wandering studies offers new perspective on mental disorders
