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New
The latest blog posts to take off on Hacker News. 323 posts.
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Why introductory chemistry is boring: a long-term historical perspective
Looking for flashcards for chemistry? Try 21st Night ! It allows you to create and share flashcards with anything on them: images, videos, equations, you name it . Plus, there’s a built-in to-do list!
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Blue light may not be as disruptive to sleep patterns as thought: mouse study
Contrary to common belief, blue light may not be as disruptive to our sleep patterns as originally thought - according to University of Manchester scientists. According to the team, using dim, cooler, lights in the evening and bright warmer lights in the day may be more beneficial to our health. Twilight is both…
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Why We Sleep: Responses to questions from readers
Introduction The aim of the book, Why We Sleep, is to provide the general public access to a broad collection of sleep research. Below, I address thoughtful questions that have been raised regardin…
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Alcohol Consumption
Who consumes the most alcohol? How has consumption changed over time? And what are the health impacts?
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Reconstruction of a Train Wreck: How Priming Research Went off the Rails
This blog post focusses on Chapter 4 about Implicit Priming in Kahneman's book "Thinking" Fast and Slow." A review of the book and other chapters can be found here: https://replicationindex.com/2020/12/30/a-meta-scientific-perspective-on-thinking-fast-and-slow/ Daniel Kahneman's response to this blog…
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Announcing the New PubMed
The National Library of Medicine (NLM) is replacing the current version of the PubMed database with a newly re-designed version. The new version is now live and can be found at You can still acces…
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Hepatitis C kills more Americans than all other infectious diseases combined
Hepatitis C has become so widespread that experts are calling on doctors to screen all adults 18 to 79, even those with no known risk factors or symptoms.
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New laser ultrasound technique can remotely image the inside of a person
MIT researchers have produced the first “laser ultrasound” images in humans, using eye- and skin-safe lasers. The new technique enables noncontact ultrasound imaging, which may help clinicians to remotely assess patients, infants, and contact-sensitive subjects such as burn victims.
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How do CO2 emissions compare when we adjust for trade?
Which countries are net importers and exports of emissions? How much CO2 is ‘offshored’?
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Superdeterminism: The path we didn’t take
Science News, Physics, Science, Philosophy, Philosophy of Science
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Brain tunes itself to criticality, maximizing information processing
New research from Washington University in St. Louis confirms that the brain tunes itself to a point where it is as excitable as it can be without tipping into disorder, similar to a phase transition. The new research from Keith Hengen, assistant professor of biology in Arts & Sciences, is published Oct. 7 in the…
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Drugs that tamp down inflammation in the brain could slow cognitive decline
Leaky filtration system in brain contributes to cognitive dysfunction in aging as well as disease
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If the universe is 13.8B years old, how can we see 46B light years away? (2018)
Distances in the expanding Universe don’t work like you’d expect. Unless, that is, you learn to think like a cosmologist.
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Battery Pack Prices Fall As Market Ramps Up
Access the latest perspectives on the energy transition with samples of research reports and data-driven analysis from BNEF experts.
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Each Country's Share of CO2 Emissions
Which 20 countries emit the most carbon dioxide? You may be surprised.
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Amazon Braket – Get Started with Quantum Computing
Nearly a decade ago I wrote about the Quantum Compute Cloud on April Fool’s Day. The future has arrived and you now have the opportunity to write quantum algorithms and to run them on actual quantum computers. Here’s what we are announcing today: Amazon Braket – A fully managed service that allows scientists…
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Crop Yields
Increasing crop yields is crucial to improve food security, living standards, and reduce human impacts on the environment.
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Getting a scientific prize for open-source software
Note An important acknowledgement for a different view of doing science: open, collaborative, and more than a proof of concept. A few days ago, Loïc Estève, Alexandre Gramfort, Olivier Grisel,...
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How Radar Works
Radar is one of the most versitile sensors we have to determine what is happening in an environment. Some common applications include air traffic control, weather prediction, automated driver assist, astronomy and terrain mapping. Given that these applications have wildy varying requirements on resolution, range and…
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Jacob Collier’s four magical chords
Jacob Collier is the internet’s favorite musical virtuoso. Here’s his mostly acapella arrangement of a Christmas carol called “In The Bleak Midwinter.” The most remarkable p…
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The plot thickens for a hypothetical “X17” particle
This content is currently in the process of being archived and integrated into the CERN Library collections.
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What is energy, actually? (2011)
That’s an easy go: energy is the amount of (on) my electricity bill, or maybe of (on) my natural gas bill. If I am very concentrated, I might add that it is also the money I spend at the gasoline pump, and if I am even more concentrated I will suggest that it might have something to do with the filling up of my…
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Domes are overrated
Part of my series on common misconceptions in space journalism. It is an unwritten rule of space journalism that any article about Moon or Mars bases needs to have a conceptual drawing of habitatio…
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Ketogenic diet helps tame flu virus in mice
Mice fed a ketogenic — or very low-carb — diet were better able to combat the flu virus than mice fed food high in carbohydrates, according to a new Yale study.
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Link between inflammation and mental sluggishness shown in new study
Scientists at the University of Birmingham in collaboration with the University of Amsterdam have uncovered a possible explanation for the mental sluggishness that often accompanies illness.