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P < 0.05 Considered Harmful
The unreasonable persistence of an old standard
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
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Ocean acidification may cause dramatic changes to phytoplankton
A new study finds that increased ocean acidification will dramatically affect global populations of phytoplankton: Some species will die out, while others will flourish, which will affect marine food webs.
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Nano-engineered thermoelectrics enable scalable, compressor-free cooling
Researchers at Johns Hopkins APL, in collaboration with Samsung Research, have unveiled a breakthrough in solid-state cooling technology, doubling the efficiency of today’s commercial systems. Driven by the Lab’s patented nano-engineered thin-film thermoelectric materials and devices, this innovation paves the way for…
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Scientists solve 200-year-old puzzle of how tobacco plants make nicotine
Scientists have uncovered how tobacco plants naturally make nicotine, solving a mystery that has puzzled researchers for nearly two centuries.
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Unraveling the mysteries of habit formation
Researchers研究者名Asaoka, Nozomi
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Steven Pinker on Language, Reason, and the Future of Violence
Steven Pinker believes deeply in the power of reason to understand the world and ourselves. But can he convince Tyler?
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AAAS Blocking Access to the Scientific Literature When They Say It Is “Free”
A blog about microbiology, genomics and metagenomics, sequencing, evolution, ecology, and open science.
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Weird pupils let octopuses see their colorful gardens
Scientists propose unique way in which ‘colorblind’ cephalopods can detect color
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What makes Bach sound like Bach? New dataset teaches algorithms classical music
MusicNet is the first publicly available large-scale classical music dataset designed to allow machine learning algorithms to tackle everything from automated m
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Rat Park drug experiment cartoon
Comic about a classic experiment into drug addiction science: Rat Park. Would rats take drugs if given a stimulating environment and company?
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Why the Facebook Experiment Is Lousy Social Science
Facebook is grappling with its impact on our social and emotional lives — and that’s a good thing. But it has to get the research right. Why Facebook did the experiment, and how to make it better.
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Hacking physics from the back of a napkin (2020)
February 24, 2020. The computational power of a humble napkin is awesome. I discuss three napkin algorithms — dimensional analysis, Fermi estimates, and random walks — and use them to figure out why rain falls, the length of the E. coli genome, and the mass of a proton, among other things. These examples suggest a…
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What Did Bohr Do at Los Alamos?
Along with almost getting hit by a car, he made important contributions to the atomic bomb's design.
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FermiNet: Quantum Physics and Chemistry from First Principles
In August 2024, we published the next phase of our work in Science. Our research proposes a solution to one of the most difficult challenges in computational quantum chemistry: understanding how molecules transition to and from excited states when stimulated.
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Losing Covid-19 antibody immunity after six months after Pfizer vaccine
Case Western Reserve University researchers, in partnership with Brown University, examine vaccine’s effectiveness over time on seniors and their ca...
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Vinyl Chloride and the Ohio Train Derailment
The recent Ohio train derailment and subsequent fire that released vinyl chloride into the environment has been a terrifying experience for the nearby population. The accident rekindles memories of the 1979 train accident in Mississauga, Ontario, when over 200,000 people had to be evacuated after a wheel bearing…
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Nootropics Survey Results And Analysis
In case you are just joining us: nootropics are substances which purportedly improve mental functioning with relatively few side effects when used responsibility. Caffeine is a good example. It imp…
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This is what the year actually looks like (2018)
A few weeks back, I asked the Norwegian public what the year looks like inside their heads. It led to a deluge of responses. Here's a summary of more than 75 000 month placements, and nearly 40 000 questionnaire responses.
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The Saddest Map In America
Yep, there it is: the result of a scholarly study by Dorothy Gambrell of the “missed connections” section of Craigslist. This is where you thought you saw your future spouse or date or …
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Against Bayesianism – David Deutsch
Bayesianism, the doctrine that it's always rational to represent our beliefs in terms of probabilities, dominates the intellectual world, from decision theory to the philosophy of science. But does it make sense to quantify our beliefs about such ineffable things as scientific theories or the future? And what separates