The latest blog posts to take off on Hacker News. 384 posts.
[Note that this article is a transcript of the video embedded above.] This is the Puente Hills Landfill outside of Los Angeles, California. The first truckload of trash was dumped here in 1957, and the trucks just kept coming. For more than five decades, if you threw something away in LA County, t
An essay with interactive animated diagrams
In a new study, Yale researchers uncover how the brain, during sleep, replays and bundles many of the experiences that occur in our waking hours.
Interactive Mathematical Applets and Animations
Researchers at ETH Zurich are using iron to store hydrogen safely and for long periods. In the future, this technology could be used for seasonal energy storage.
New research from the University of Kentucky’s Sanders-Brown Center on Aging shows compelling evidence that the cognitive impairments observed in long COVID patients share striking similarities with those seen in Alzheimer’s disease and related dementias.
The costs of some parts of solar farms will drop to near zero. But some obstacles remain to make this energy cheaply available everywhere. As a result, the entire energy industry will change. What are those obstacles? How will the industry change?
A next-generation COVID-19 mucosal vaccine is set to be a gamechanger not only when delivering the vaccine itself, but also for people who are needle-phobic.
AI, science, education, & ethics
EDIT: Be warned that this post is angry. If you’re easily offended when someone goes on a rant, then leave now because I’m very unforgiving in several places below. The tone of my writing is unusually harsh, but the people whose work I’m talking about deserve it, and here’s why. Even though I had been working with…
ESA’s Jupiter Icy Moons Explorer (Juice) has successfully completed a world-first lunar-Earth flyby, using the gravity of Earth to send it Venus-bound, on a shortcut to Jupiter through the inner Solar System.
[Note that this article is a transcript of the video embedded above.] This is the Dallas High Five, one of the tallest highway interchanges in the world. It gets its name from the fact that there are five different levels of roadways crossing each other in this one spot. In some ways, it’s kind of
Up until the late 1960s, physiologists believed that the maximum depth a person could descend to was determined by the depth at which their total lung capacity (TLC) was compressed to the same volume as their residual volume (RV) which is the smallest lung volume a person can breathe to. The TLC was predicted to be…
A zinc-air microbattery designed by MIT engineers could enable the deployment of cell-sized, autonomous robots for drug delivery within in the human body, as well as other applications such as locating leaks in gas pipelines.
Personal website of Dr. Peder M. Isager
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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The ANPC transponder landing system at McMurdo station allows aircraft to land on the moving ice runway in poor weather or low visibility.
The AI Scientist: Towards Fully Automated Open-Ended Scientific Discovery
Device uses sound waves to gather blood pressure data from blood vessels, monitoring the response with ultrasound.
Nuclear power already has an energy density advantage over other sources of thermal electricity generation. But what if nuclear generation didn’t require a steam turbine? What if the radiation from a reactor was less a problem to be managed and more a source of energy? And what if an energy conversion technology could…
Is running a more efficient way to travel than walking? Does running burn less calories per distance traveled than wa...
In a new study , a molecule identified and synthesized by UCLA Health researchers was shown to restore cognitive functions in mice with symptoms of Alzheimer’s disease by effectively jumpstarting the brain's memory circuitry.
After the atomic bombings of Hiroshima and Nagasaki, the US Army Air Force had plans to drop a third bomb on August 19, 1945—with more to come if necessary. Fat Man bomb casing at the USAF Museum
[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
CU Boulder Classics scholars identify previously unknown fragments of two lost tragedies by Greek tragedian Euripides.
4k words, 19 minutes reading time
By sheer accident, UBC researchers created a new super-black material that absorbs almost all light and trademarked it as Nxylon.
