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Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,456 posts.
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Yakhchal: Ancient Refrigerators (2009)
By 400 BC, Persian engineers had mastered the technique of storing ice in the middle of summer in the desert. The ice was brought in during the winters from nearby mountains in bulk amounts, and stored in a Yakhchal , or ice-pit. These ancient refrigerators were used primarily to store ice for use in the summer, as…
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Adventures in Probability
I hope everyone had a good weekend. I went on a hike. It was great. Statistics One of my great school regrets, next to “taking three years of business...
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Student refines 100-year-old math problem, expanding wind energy possibilities
A Penn State engineering student's work on a century-old math problem that expands research in aerodynamics, unlocking new possibilities in wind turbine design, was recently published in Wind Energy Science.
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My stupid noise journey (2023)
A tale of bad choices
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Study shows antibodies against PEG in 83% of the German population
Study shows antibodies against polyethylene glycol in 83 percent of the German population
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ER visits for gambling disorders doubled after expanded online gambling market
ER visits for gambling disorders doubled after single-event sports betting was legalized and Ontario's online gambling market expanded.
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LHC experiments see first evidence of a rare Higgs boson decay
The discovery of the Higgs boson at CERN’s Large Hadron Collider (LHC) in 2012 marked a significant milestone in particle physics. Since then, the ATLAS and CMS collaborations have been diligently investigating the properties of this unique particle and searching to establish the different ways in which it is produced…
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The brain navigates new spaces by 'darting' between reality and mental maps
A new Yale study reveals the brain's internal map doesn't just track one’s current location, it constantly "flickers" between the present space and remembered
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Constructing a Four-Point Egg
For reasons beyond the scope of this entry, I have been investigating elliptical and ovoid shapes. The Wikipedia article for Moss’s egg has a link to a tutorial on Euclidean Eggs by Freyja Hreinsdóttir which (amongst other things) describes how to construct the “four point egg”. I think it is a nicer shape than Moss’s…
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Saliva-based Covid-19 test approved by FDA
The YSPH-developed test, called SalivaDirect, has been used as part of an NBA testing program and will now be available to more diagnostic laboratories.
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Brain tunes itself to criticality, maximizing information processing
New research from Washington University in St. Louis confirms that the brain tunes itself to a point where it is as excitable as it can be without tipping into disorder, similar to a phase transition. The new research from Keith Hengen, assistant professor of biology in Arts & Sciences, is published Oct. 7 in the…
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Simulating a minimal cell in the browser
Simulating an entire cell using kinetic parameters of reactions in a well-stirred environment
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US military's mysterious X-37B space plane zooms toward orbital record
That Earth-circling U.S. military X-37B robotic space drone is closing in on a new long-duration record.
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ESA’s new Ariane 6 rocket passed a major full-scale rehearsal
For this rehearsal, the boosters were not ignited so Ariane 6 stayed firmly on the launch pad at Europe’s Spaceport in French Guiana, as planned.
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Overall, the colorectal cancer story is encouraging
An interactive data journalism piece exploring the rise of young-onset colorectal cancer, with population simulations, risk factors, and prevention information.
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2,050-year-old Roman tomb offers insights on ancient concrete resilience
The unique mineral composition of the 2,050-year-old Roman tomb of Caecilia Metella could point the way toward more resilient and sustainable modern concrete structures.
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How cancer cells fuel their growth
Scientists report that amino acids, not sugar, supply most building blocks for cancerous tumor cells. The findings offer a new way to look at cancer cell metabolism, a field that may yield new treatments.
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Reversible computing with mechanical links and pivots
With the concern that “Moore’s Law is dead,” new interest has grown for unconventional forms of computing. This includes:
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Mathematician-M.D. claims to have solved the 110-year-old Lindelöf hypothesis
A completely new approach suggests the validity of the 110-year-old Lindelöf hypothesis, opening up the possibilities of new discoveries in quantum computing, number theory and cybersecurity
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The Unreasonable Redundancy of Nature's Protein Folds
A Ligo research note on redundancy in natural protein fold space and what kind of data still carries signal.
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Science is a strong-link problem
OR: How to eat fewer asparagus beetles
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