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Caltech Researchers Find Evidence of a Planet Beyond Pluto
Planet Nine's existence was discovered by Konstantin Batygin and Mike Brown through mathematical modeling and computer simulations.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,455 posts.
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Curves and Surfaces
Interactive article explaining how curves and surfaces are modeled.
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CDC: Unpublished manuscripts mentioning certain topics must be pulled or revised
Any unpublished manuscript mentioning certain topics, including gender and "LGBT," must be pulled or revised.
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Scientists discover a cause of lupus, possible way to reverse it
Scientists have discovered a molecular defect that promotes the pathologic immune response in lupus and demonstrated that reversing the defect may potentially reverse the disease.
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The bottleneck might be the air in the room
You gather your most expensive people into a room to make your most important decisions. Then, somewhere in the second hour, the room quietly gets worse at making them. Not the people. The room.
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I found two identical packs of Skittles among 468 packs
This article was discussed on Hacker News, and was cited in The Mathematical Gazette. Introduction This is a follow-up to a post from earlier this year discussing the likelihood of encountering two…
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NASA’s IMAGE satellite, lost since 2005, is alive
Over the past week the station has been dedicated to an S-band scan looking for new targets and refreshing the frequency list, triggered by the recent launch of the mysterious ZUMA mission. This t…
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We're going to need a lot of solar panels
The team at Terraform Industries is now 11 people working towards a near term future where atmospheric CO2, much of it centuries of unpriced industrial waste, becomes the preferred default source o…
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Daniel Kahneman “I placed too much faith in underpowered studies”
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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My 16-month theanine self-experiment
randomized and blinded, N=1
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Lyme disease bacteria eradicated by new drug in early tests
A study provides evidence that the drug azlocillin eliminates the bacteria that cause Lyme disease at the onset of infection in lab mice and cultures.
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Why Not Mars
It's slow, expensive, the engineering is mostly port-a-potty chemistry, and the best-case outcome is that thirty years from now we’ll get to watch someone remotely operate a soil scoop from Mars instead of Pasadena
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Why is the sky blue?
The internet’s default answer to “why is the sky blue?” is “Rayleigh scattering”. And that’s not wrong, but it’s also not very useful.
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Physics Student Earns PhD at Age 89
Physics is the most fundamental of sciences. It provides a foundation for ideas critical to other scientific fields and the underpinnings for modern technologies.
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Gravity is not a force – free-fall parabolas are straight lines in spacetime
For full functionality of this site it is necessary to enable JavaScript. Here are the instructions how to enable JavaScript in your web browser .
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Berkeley offers its data science course online for free
Data science is increasingly popular at Berkeley because the world is increasingly data-driven
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How I got my laser eye injury
It has been brought to my attention that I have never actually written this story down before, merely told it in person to many students for valuable lessons and also for laughs over cocktails. It is a litany of bad ideas from several people that all came together at once to reach out and zap … Continue reading "How I…
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Astronomers reveal first image of the black hole at the heart of our galaxy
The first images of the supermassive black hole at the heart of Sgr A reveal that this black hole is very different from the one at the heart of M87.
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Claude discovers a novel enzyme system with CRISPR-like repeats
In early results from our new life sciences research lab, Claude agents found an enzyme system whose function is still unknown.
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Research suggests Big Bang may have taken place inside a black hole
In this blog, Professor Enrique Gaztanaga from the Institute of Cosmology and Gravitation writes for The Conversation.
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Large Hadron Collider discovers three new exotic particles
The collaboration has observed a new kind of “pentaquark” and the first-ever pair of “tetraquarks”
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Poisson's Equation
If you aren’t used to staring at math, Poisson’s equation looks a little intimidating:
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How French Drains Work
[Note that this article is a transcript of the video embedded above.] In February of 2017, one of the largest spillways in the world, the one at Oroville Dam in northern California, was severely damaged during releases from heavy rain. You might remember this. I made a video about it, and then ano
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I was recently diagnosed with anti-NMDA receptor encephalitis
I was recently diagnosed with anti-NMDA receptor encephalitis . It is an autoimmune disorder where your body’s normally helpful antibodies start acting strangely . This leads to inflammation in the brain. This blog briefly discusses some of my experience and prognosis.
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1060-hour image of the Large Magellanic Cloud captured by amateur astronomers
This extraordinary view of the LMC might be the world's longest exposure image in amateur astronomy. 1060 hours were needed to capture this highly-resolved image (204 Megapixels) of the Large Magellanic Cloud.
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Adults learn language to fluency nearly as well as children: study
Scott Chacon is CEO of the online language learning company Chatterbug.
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Square Theory
The story starts in Crosscord, the crossword Discord server. Over 5,000 users strong, the server has emerged as a central hub for the online crossword community, a buzzing, sometimes overwhelming, sometimes delightful town square where total noobs, veteran constructors, and champion solvers alike come together to talk…