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California Earthquakes Disrupted HF Propagation on West Coast
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
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The latest blog posts to take off on Hacker News. 323 posts.
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The Riemann Hypothesis Says 5040 Is the Last
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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M 7.1 SoCal Earthquake: What's Next?
The 50-km-long rupture has triggered widely dispersed aftershocks. However, almost none of these struck on the faults that the M 7.1 brought closer to failure: The major Garlock Fault; or the Blackwater, Panamint Valley, or Sierra Nevada Faults.
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Breaking max efficiency of solar cells by activating 2 electrons with 1 photon
Researchers at MIT and Princeton have found a way to increase the output of silicon solar cells by allowing a single photon to release two electrons in the silicon.
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A Ring of Controversy Around a Black Hole Photo
[Note Added: Thanks to some great comments I’ve received, I’m continuing to add clarifying remarks to this post. You’ll find them in green.] It’s been a couple of months si…
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When zebra mussels colonized Lake Erie, it began to recover
There are many ways we can talk about the deeper roots of the crisis of our time, setting out from many different vantage points; as Charles Fort pointed out, one measures a circle, beginning anywh…
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Mitchell Feigenbaum, physicist who pioneered chaos theory, has died
Mitchell J. Feigenbaum , a mathematical physicist whose groundbreaking work on deterministic chaos influenced fields ranging from cardiology to cartography, died in New York City on June 30 at the age of 74. Feigenbaum was the Toyota Professor and director of the Center for Studies in Physics and Biology at…
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Study suggests surgery alternative for rotator cuff pain: push-ups, pull-ups
On a Sunday morning in 2006, Cecilia Wu was mugged after leaving church. The pain became unbearable. Discouraged with her treatment options, Wu opted to participate in a pilot study at an orthopedics lab for patients with a full-thickness rotator cuff tear. “It was better than surgery,” Wu said.
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The case against plant consciousness
Botanist Lincoln Taiz and colleagues argue against the suggestion that plants have neurobiology or consciousness.
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India is now producing the world’s cheapest solar power
As the costs of generating cleaner energy continue to fall, there is growing potential to speed up the transition to a zero-carbon future.
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It’s Time for Some Queueing Theory
Queueing theory is the scientific study of waiting in line. It can apply to familiar lines like those at the grocery store or bank but also to things like web s
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‘Pre-bunk’ game reduces susceptibility to disinformation
Study of thousands of players shows a simple online game works like a 'vaccine', increasing skepticism of fake news by giving people a “weak dose” of the methods behind disinformation.
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What is ergodicity? (2016)
Why are election polls often inaccurate? Why is racism wrong? Why are your assumptions often mistaken? The answers to all these questions and to many others have a lot to do with the non-ergodicity…
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AI Models Predict Breast Cancer with Radiologist-Level Accuracy
The IBM Research blog is the home for stories told by the researchers, scientists, and engineers inventing What’s Next in science and technology.
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Information is like snacks, money, and drugs to the brain
Can’t stop checking your phone, even when you’re not expecting any important messages? Blame your brain. A new study by researchers at UC Berkeley’s Haas School of Business has found that information acts on the brain’s dopamine-producing reward system in the same way as money or food. “To the brain, information is…
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Can We Catch the Next ‘Oumuamua?
Awesome plan! But, how frequently are suitable targets expected to inter the inner solar system that would also be able to be reached from Earth’s L2 point?
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Two centuries of rapid global population growth will come to an end
Global population grew rapidly over the past century, but this period of fast growth is coming to an end.
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Gut microbes eat medication
The first time Vayu Maini Rekdal manipulated microbes, he made a decent sourdough bread. At the time, young Maini Rekdal, and most people who head to the kitchen to whip up a salad dressing, pop popcorn, ferment vegetables, or caramelize onions, did not consider the crucial chemical reactions behind these concoctions.
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Historical Map of the Cognitive Sciences: An Attempt
Map of the cognitive science, historical from 1930 to 2020 with prehistory and future prediction. Including Psychology, Artificial Intelligence, Mathematics, Neuroscience, Biology and more.
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An Orbit Map of the Solar System
A map of over 18,000 asteroids in the Solar System.
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Let’s Publish Everything
The other day someone pointed me to this article by James Kaufman and Vlad Glǎveanu in a psychology journal which begins:
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Book Review: The Secret Of Our Success
[Previously in sequence: Epistemic Learned Helplessness] I. “Culture is the secret of humanity’s success” sounds like the most vapid possible thesis. The Secret Of Our Success by …
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Quantum transitions take time – the news is its experimental demonstration
A number of people have asked me to weigh in on this story in Quanta Magazine (based on this paper [ PDF version ] and also reported in t...