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Urban trees reveal income inequality
Wealthy cities seem to have it all. Expansive, well-manicured parks. Fine dining. Renowned orchestras and theaters. More trees. Wait, trees? I’m afraid
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
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Claude designed protein binders against scorpion neurotoxins
We asked an internal research Claude model to design minibinders (small proteins that attach tightly to a target) against scorpion neurotoxins.
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Why Are Medical Ultrasound Systems So Inexpensive?
Hackernews linked to a Medium post on ultrasound devices today, entitled " Why are Ultrasound Machines So Expensive? " which, being my cor...
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We collected 10k hours of neuro-language data in our basement
Over the last 6 months, we collected ~10k hours of data across thousands of unique individuals. As far as we know, this is the largest neuro-language dataset in the world. [1] See here , here , here , here , and here (discussion only, no data available) for some of the larger datasets. See recent papers discussing the…
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Planet Launches Satellite Constellation to Image the Whole Planet Daily
Today Planet successfully launched 88 Dove satellites to orbit — the largest satellite constellation ever to reach orbit.
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Remembering Murray Gell-Mann
Stephen Wolfram shares his memories of Murray Gell-Mann, leader in particle physics and Nobel Prize winner. Observations from years together in Caltech’s physics department and a selection of Gell-Mann’s contributions to physics.
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Terminal-Bench-Science: Evaluating AI agents on scientific research workflows
A benchmark for evaluating AI agents on research workflows across scientific domains
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A modern Fortran scientific programming ecosystem
Historically, large general-purpose libraries have formed the core of the Fortran scientific ecosystem (e.g., SLATEC , or the various PACKS ). Unfortunately, as I have mentioned here before, these libraries were written in FORTRAN 77 (or earlier) and remained unmodified for decades. The amazing algorithms continued…
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DARPA’s 23 Challenge Questions
DARPA challenges The Defense Advanced Research Projects Agency (DARPA) has issued 23 mathematical challenges. DARPA says the solution of any one of these challenges would have the effect of “…
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Retinal cells that help stabilize our world view
Will enable researchers to better understand eye movement disorders that cause significant visual impairment.
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The Biology of a Large Language Model
We investigate the internal mechanisms used by Claude 3.5 Haiku — Anthropic's lightweight production model — in a variety of contexts, using our circuit tracing methodology.
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Exploring the ocean with Raspberry Pi–powered marine robots
Pushing affordable marine conservation forward with autonomous marine robots powered by Raspberry Pi Compute Module 4.
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The Riemann Hypothesis (Part 2)
Note: These pages make extensive use of the latest XHTML and CSS Standards . They ought to look great in any standards-compliant modern browser. Unfortunately, they will probably look horrible in older browsers, like Netscape 4.x and IE 4.x. Moreover, many posts use MathML, which is, currently only supported in…
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Why fusion will never happen (2012)
I like fusion, really. I’ve talked to some of luminaries that work in the field, they’re great people. I love the technology and the physics behind it. But fusion as a power source is n…
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Time to redefine normal body temperature? (2020)
Is 98.6˚ F still the norm for body temperature? Data collected over almost 160 years show that the normal body temperature has been declining and is now roughly one degree lower....
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The Limits to Growth (1972)
The complete original Limits to Growth study is now freely accessible online, thanks to the Donella Meadows Institute and the Dartmouth College Library.
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Continuous Glucose Monitoring
Continuous glucose monitoring has been a thing for a while. It's a probe that sits just inside your body and measures blood glucose levels frequently. Obviously this is most useful for type 1 diabetics, who need to regulate their blood glucose manually.
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Debugging the Doctor Brain: Who's teaching doctors how to think?
Who's teaching doctors how to think?
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What if the Trinity test had failed?
If the first nuclear weapons test had been a flop, would the world be better or worse off?
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What Left-Handedness Reveals About How the Brain Works (2014)
From Medieval sword-fighters to Broca’s brains, or why the hand may hold the key to the link between creativity and mental illness.
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Does the Universe Have Higher Dimensions? Part 1
Science News, Physics, Science, Philosophy, Philosophy of Science
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Bioluminescent trees as an alternative to electric lighting
When people think of Registered Apprenticeship, they may picture careers in construction, manufacturing, or the skilled trades. But apprenticeship is also creating exciting career pathways in industries that keep our communities beautiful, safe, and thriving — including turfgrass management and groundskeeping. New…
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Ants: Who looks after the injured in a colony?
Carpenter ants amputate the injured legs of fellow ants to minimise the risk of infection. A new study involving a Würzburg researcher shows that this task is primarily carried out by ants switching from indoor to outdoor duties.