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Our muscles will atrophy as we climb the Kardashev Scale
If you like this, you might also like my Instagram channel Nerd on Bars @nerdonbars where I calculate the power output of various athletes and myself.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 384 posts.
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A step toward fully 3D-printed active electronics
Researchers produced 3D-printed, semiconductor-free logic gates, which perform computations in active electronic devices. As they don’t require semiconductor materials, they represent a step toward 3D printing an entire active electronic device.
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Researchers use AI to turn sound recordings into street images
AUSTIN, Texas — Using generative artificial intelligence, a team of researchers at The University of Texas at Austin has converted sounds from audio
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Using Euro coins as weights (2004)
Here is a cheap way to obtain a set of standard weights, for measuring weights up to about 100 gram, to an accuracy of about 0.5 gram : Use the coins of the currency of your country. Thus one can make use of the fact that these coins are fabricated in mass production, and because of that have not only a constant shape…
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Radiology-specific foundation model
Harrison.ai builds AI-native medical imaging technology for radiology, used by hospitals and radiology providers worldwide. See our products and solutions.
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The case against Google's claims of "quantum supremacy"
The 2019 paper “Quantum supremacy using a programmable superconducting processor” asserted that Google’s Sycamore quantum computer, with 53 qubits and a depth of 20, performed a specific computat…
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Nxylon: New super-black material made from wood
By sheer accident, UBC researchers created a new super-black material that absorbs almost all light and trademarked it as Nxylon.
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IBM and NASA build language models to make scientific knowledge more accessible
At IBM Research, we’re inventing what’s next in AI, quantum computing, and hybrid cloud to shape the world ahead.
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Brain Uses Quantum Effects, New Study Finds [video]
Science News, Physics, Science, Philosophy, Philosophy of Science
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Research in psychology: are we learning anything?
OR: The mystery of the televised salad
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A pilot project in universal algebra to explore new ways to collaborate
Traditionally, mathematics research projects are conducted by a small number (typically one to five) of expert mathematicians, each of which are familiar enough with all aspects of the project that…
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A primer on the current state of longevity research
4k words, 19 minutes reading time
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Claude Shannon: Mathematician, engineer, genius and juggler (2017)
By Rob Goodman and Jimmy Soni, co-authors A MIND AT PLAY: How Claude Shannon Invented the Information Age “Do you mind if I hang you upside down by your legs?” From any other professor, this question might have elicited concern. But from Claude Shannon, it was par for the course. Shannon had in mind an elaborate…
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How does a computer/calculator compute logarithms?
Summer of Math Exposition 3 - How does a computer/calculator compute logarithms?
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CT Scans of New vs. Used SawStop
CT scans of a new and deployed SawStop brake reveal the fuse wire, spring mechanism, and pawl collapse zones that stop a spinning saw blade in under 5 ms.
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The unstallable plane that stalled
The Cessna 185 Skywagon is a high wing, single engine aircraft: basically a Cessna 180 with six seats, a strengthened fuselage and a slightly more powerful engine. It’s a popular aircraft in remote…
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How on-the-wrist sleep apnea detection works
80% of sleep apnea cases are undiagnosed, and undiagnosed sleep apnea causes $150B of wasted medical spend every year.
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The Eclipse via Satellite
Yesterday’s eclipse as seen by the GOES-East weather satellite. I just grabbed the full-disk geocolor JPGs with wget and stitched them together with ffmpeg. BTW, If you’re wondering why the clouds remain in view as night falls to the East, it’s because the geocolor image is a composite of “true color” daytime and a…
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Reentry of International Space Station Batteries into Earth's Atmosphere
UPDATE (8 March, 20:00 CET): The reentry of the ISS batteries is now expected between approximately 19:30 CET and 21:08 CET on 8 March. This will be the final update ...
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A rudimentary quantum network link between Dutch cities
An international research team led by QuTech has demonstrated a network connection between quantum processors over metropolitan distances. Their result marks a key advance from early research networks in the lab towards a future quantum internet. The team developed fully independently operating nodes and integrated…
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Wind farms can offset their emissions within two years, new study shows
After spinning for under two years, a wind farm can offset the carbon emissions generated across its entire 30-year lifespan, when compared to thermal power plants. That’s according to a new peer-reviewed study published in the Journal of the Royal Society of New Zealand – which also shows within six months a turbine…
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MIT engineers make converting CO2 into useful products more practical
A new electrode design developed at MIT boosts the efficiency of electrochemical reactions that turn carbon dioxide into ethylene and other products.
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What P vs. NP is about
We recently made a Polylog video about a nonstandard way of understanding the P vs NP problem. As usual, our goal was to present an underrated idea in a broadly understandable way, while being slig…
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Learn perfect pitch in 15 years
It was not easy or quick, and there were so many qualifiers that, for over a decade, I didn’t really think I “deserved” the label. But as I got older, those qualifiers started dropping off one by one, and today I’m convinced that I have perfect pitch. I describe my musical journey and thoughts on what perfect pitch…
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Georgia Tech, Meta create open dataset to advance solutions for carbon capture
To avoid catastrophic climate impacts, excessive carbon emissions must be addressed. At this point, cutting emissions isn’t enough. Direct air capture, a technology that pulls carbon dioxide out of ambient air, has great potential to help solve the problem.
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The fascinating and complicated sex lives of white-throated sparrows
With their quadruple personalities, those little brown birds at your feeder are a lot more interesting than they might appear.