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Polish city is using mussels to monitor water quality (2020)
A city in Poland is relying on the mechanisms of mussels to safeguard its population from polluted drinking water.
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
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Computers do better than pathologists in predicting lung cancer type, severity
Automating the analysis of slides of lung cancer tissue samples increases the accuracy of tumor classification and patient prognoses, according to a new study.
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What's Under Your Feet in New York City?
[Note that this article is a transcript of the video embedded above.] New York City is unlike any other city in the United States. It’s the most densely populated area in the country by far, absolutely packed with buildings, business, homes, and people. But for all that you can see walking the str
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Extracting Audio from Pictures of Gramophone Recordings
Three years ago, a survey team identified a staggering 569,148 time-based media objects on the Bloomington campus of Indiana University—that’s over half a million sound recordings, video recordings…
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Engineers grow pancreatic organoids that mimic the real thing
MIT engineers developed a way to grow tiny replicas of the pancreas, using either healthy or cancerous pancreatic cells. Their models could help researchers develop and test potential drugs for pancreatic cancer.
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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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The AI Scientist: Towards Automated Open-Ended Scientific Discovery
The AI Scientist: Towards Fully Automated Open-Ended Scientific Discovery
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The Nobel Prize in Physics 2019
The Nobel Prize in Physics 2019 was awarded "for contributions to our understanding of the evolution of the universe and Earth’s place in the cosmos" with one half to James Peebles "for theoretical discoveries in physical cosmology", the other half jointly to Michel Mayor and Didier Queloz "for the discovery of an…
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Feynman’s advice to W&M student resonates 45 years later (2020)
Early in her career as a William & Mary student, Beulah Elizabeth Cox turned in a physics exam that contained what became one of the most famous incorrect answers in science.
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Sampling at negative temperature
Summary : Inspired by the definition of temperature in statistical mechanics and the possibility for it to be below zero, we try sampling LLaMA at T = − 0.001 T=-0.001 T = − 0.001 . The results are maximally weird.
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If 1+x is 1, how much is 1-x?
► Versión en Español (The title should be "if (= (+ 1 x) 1), how much is (- 1 x)?", but ...) Toy floating point Mathematically, if we...
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New gel breaks down alcohol in the body
Researchers at ETH Zurich have developed a protein-based gel that breaks down alcohol in the gastrointestinal tract without harming the body. In the future, people who take the gel could reduce the harmful and intoxicating effects of alcohol.
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Study finds memory decline surge in young people
A Large US Study Finds Memory Decline Surge in Young People
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Nuclear radiation used to transmit digital data wirelessly
Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology.
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An old artifact kept in a vault outside Paris is no longer the standard kilogram
The international standard measurement of the kilogram is being officially changed on May 20, for the first time making all standard units defined in terms of basic physical principles instead of particular human-made objects. MIT professor and Nobel laureate Wolfgang Ketterle explains the change.
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Elon Musk says he will put millions of people on Mars
New Scientist – Musk declared recently that he could put a human on Mars in 10 to 20 years’ time. It is a remarkable claim, yet even more astonishingly Musk tells me that he could do it for $5 billion, and possibly as little as $2 billion – a snip when you consider that the International Space Station (ISS) has cost…
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Ending respiratory infections
Introducing Intercept, a $500M bet to make respiratory infections like colds and flu a thing of the past.
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Rethinking the origins of the universe
Laura Mersini-Houghton has mathematically proven that quantum effects are strong enough to stop the formation of black holes, work that opens up a new round of discussions and debates about the origins of the universe.
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The Effects of Noise on Health (2022)
As you were browsing something about your browser made us think you were a bot. There are a few reasons this might happen:
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What we learned doing Fast Grants
We launched an abnormally fast source of emergency science funding during COVID-19. The results revealed flaws in current science funding models.
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Sphere Eversion
Topology is the study of the properties of geometric objects which aren’t changed by continuous deformation. A standard low-grade math joke is that toplogists consider a coffee mug and a doughnut equivalent because they’re both torii—(pauses for laughter)—one can be continuously deformed into the other, called a…
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Gaussian integration is cool
Brief discussion on gaussian quadrature and chebyshev-gauss quadrature