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Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,457 posts.
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How to clean chemistry glassware
Demystifying Synthetic Organic Chemistry since 2004. Laboratory Techniques and Methods to Improve your Experimental Skills.
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July 5, 1687: When Newton explained why you don't float away
On this day in 1687, Isaac Newton published the Principia—a book that explained why apples fall, why planets don’t wander off, and why NASA is still lighting enormous tubes on fire to fling humans into orbit 337 years later.
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UMD study: N95 masks nearly perfect at blocking Covid
Researchers Found Even Lower-Performing Masks Were Protective
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Plans to plant billions of trees threatened by undersupply of seedlings
| The University of Vermont
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Mice eating less isoleucine live longer, healthier
A calorie may not be just a calorie according to new research from the University of Wisconsin School of Medicine and Public Health.
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What is an emotion? William James’s theory of how our bodies affect our feelings
“A purely disembodied human emotion is a nonentity.”
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Study: Teen Cannabis Users Have Poor Long-Term Memory in Adulthood
A new study shows that teenagers who had previously been heavy users of marijuana performed worse on long-term memory tests than those who never used cannabis, and they had abnormally shaped hippocampuses.
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Sputnik V: fraudulent clinical trial data
Sputnik V clinical trial data seems as trustworthy as Putin’s election results.
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How Dangerous Are Solar Storms?
Science News, Physics, Science, Philosophy, Philosophy of Science
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How is efficacy vs. severe disease strong if 60% of hospitalized are vaccinated?
A surge involving the rapidly-transmitting Delta variant in heavily vaccinated countries has led to much hand-wringing that the vaccines are not effective against Delta, or vaccine effectivenss wanes after 4-6 months. This has fueled anti-vaccine sentiment suggesting the vaccines are not working, and causing much…
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Sleep Debt
Have you heard of a sleep debt anytime in your life? Click to see what is it and how this sleep deficit can affect your everyday life.
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How to spin your scientific research out of a university and into a startup
This is advice for people who have done scientific research at a university and are considering starting a company to commercialize it. At YC, we’ve funded more than 75 companies in this situation. We also recently went on a Bio Tour [https://blog.ycombinator.com/yc-bio-tour-2020/] where we went around to research…
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Unlocking the secrets of myelin repair
New research supported by Wu Tsai Neurosciences Institute could lead to novel treatments for
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Extreme El Niño weather switched off South American's carbon sink
Tropical forests in South America lose their ability to absorb carbon from the atmosphere when conditions become exceptionally hot and dry, according to new research.
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Does anybody know this fractal? (2012)
Experimenting with the "divisibility" of complex numbers, I stumbled across this thingy. It looks like a fractal. Although the formula does not do any iterations. It reminds me of something. But I dont know what. Doing a Google image search brings up a couple of galaxies :) This image shows the region from (-1/-1) to…
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A solid-state “atomic channel” for separating rare earth elements
Rare earth elements like lanthanum, neodymium, and dysprosium are used to build the electric motor in your car, the LED lights in your house, and the MRI machine at your doctor’s office.
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Bayes’ Theorem – What is it and what is it good for?
Bayes’ Theorem tells us how to rationally assess the probability of a certain statement of interest being true, given some evidence. Insofar as science consists in creating hypotheses, collecting e…
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Fractional Factorial Experiment Design: There Are Too Many Experiments to Do
Have you ever found yourself in a situation where you had a bunch of parameters to tune for a better result, but there were just too many to exhaustively search all possibilities? I recently saw a …
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Researchers Create First Functional Semiconductor Made from Graphene
Researchers at the Georgia Institute of Technology have created the world’s first functional semiconductor made from graphene, a single sheet of carbon atoms held together by the strongest bonds known. Semiconductors, which are materials that conduct electricity under specific conditions, are foundational components…
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Mammalian Aggression
Introduction
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Genuinely, my all-time favourite image: Mamenchisaurus hochuanensis
Get ready to scroll. In 2017, Wollaton Hall in Nottinghamshire hosted an exhibition, Dinosaurs Of China: Ground Shakers To Feathered Flyers. Wollaton Hall Curator Adam Smith arranged for the SVPCA …
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GPT‑Rosalind for life sciences research
OpenAI introduces GPT-Rosalind, a frontier reasoning model built to accelerate drug discovery, genomics analysis, protein reasoning, and scientific research workflows.
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International Study Detects Consciousness in Unresponsive Patients
Your trusted health & wellness resource- explore a wealth of expert articles offering invaluable insights and guidance.
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Designing a low-cost high-performance 10 MHz – 15 GHz vector network analyzer
Designing a cheap two-port vector network analyzer with good measurement accuracy.
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How transistors really work (1995)
Most technician textbooks do a very poor job of explaining the details of transistors' internal workings. First they assume that the Base current is somehow controlling the Collector current, then they try to explain how one current can affect another. These explanations invariably fail because Bipolar transistors…