901
Strange Attractors (2018)
Interactive Mathematical Applets and Animations
New
The latest blog posts to take off on Hacker News. 4,455 posts.
902
Iron as an inexpensive storage medium for hydrogen
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.
903
Researchers find Alzheimer's-like brain changes in long Covid patients
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.
904
Can solar costs keep shrinking?
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?
905
Covid-19 Intranasal Vaccine
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.
906
Your Immune System Is Not a Muscle
AI, science, education, & ethics
907
908
Poor Foundations in Geometric Algebra
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…
909
Juice rerouted to Venus in first lunar-Earth flyby
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.
910
Why are Texas interchanges so tall?
[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
911
How Deep Can Humans Go?
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…
912
MIT engineers design tiny batteries for powering cell-sized robots
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.
913
Seven basic rules for causal inference
Personal website of Dr. Peder M. Isager
914
Galois Theory
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…
915
International Study Detects Consciousness in Unresponsive Patients
Your trusted health & wellness resource- explore a wealth of expert articles offering invaluable insights and guidance.
916
Transponder Landing System enables precision approaches at McMurdo in Antarctica
The ANPC transponder landing system at McMurdo station allows aircraft to land on the moving ice runway in poor weather or low visibility.
917
The AI Scientist: Towards Automated Open-Ended Scientific Discovery
The AI Scientist: Towards Fully Automated Open-Ended Scientific Discovery
918
919
Caltech Develops First Noninvasive Method to Continually Measure Blood Pressure
Device uses sound waves to gather blood pressure data from blood vessels, monitoring the response with ultrasound.
920
DARPA wants to bypass the thermal middleman in nuclear power systems
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…
921
Is running a more efficient way to travel than walking?
Is running a more efficient way to travel than walking? Does running burn less calories per distance traveled than wa...
922
Molecule restores cognition, memory in Alzheimer's disease model mice
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.
923
The Third Atomic Bomb
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
924
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
925
Uncovered Euripides fragments are 'kind of a big deal'
CU Boulder Classics scholars identify previously unknown fragments of two lost tragedies by Greek tragedian Euripides.
926
A primer on the current state of longevity research
4k words, 19 minutes reading time
927
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.
928
Quark Stars
Wow — evidence that very massive neutron stars may have cores made of deconfined quark matter! The idea of a ‘quark star’ is not new, but I didn’t know it was a serio…
929
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…
930
Butterflies accumulate static electricity to attract pollen without contact
Butterflies and moths collect so much static electricity whilst in flight, that pollen grains from flowers can be pulled by static electricity across air gaps of several millimetres or centimetres.