2041
Importance of muscle mass, strength and cardiorespiratory fitness for longevity
"If you have the aspiration of kicking ass when you're 85, you can't afford to be average when you're 50." —Peter Attia
New
The latest blog posts to take off on Hacker News. 4,455 posts.
2042
Omicron Update: Nov 27
There is a lot of anxiety.
2043
The Entire History of Soviet Rocket Engines
Soviet rocket engines - this article is about their history, their development, their use and their rockets.
2044
2045
New Concerning Variant: B.1.1.529
I hope everyone in the States had a fantastic Thanksgiving (even if you’re a Dallas Cowboys football fan).
2046
Is my cat Turing-complete?
This article is an adaptation of a Lightning Talk I gave at CppCon2021. Link here : https://www.youtube.com/watch?v=RtqTGSOdmBo
2047
How death rates from Covid-19 differ between vaccinated and unvaccinated
To understand how the pandemic is evolving, it’s crucial to know how death rates from COVID-19 are affected by vaccination status.
2048
Science upside for Starship
This blog is a direct follow up of Starship Is Still Not Understood, and is part of the series on popular misconceptions in space journalism. Now available in audio form. I think it is relatively s…
2049
Plunge in lithium-ion battery costs
The cost of lithium-ion batteries for phones, laptops, and cars has plunged over the years, and an MIT study shows just how dramatic that drop has been. The change is akin to that of solar and wind energy, and further declines may yet be possible, the researchers say.
2050
‘Dancing molecules’ successfully repair severe spinal cord injuries
Researchers have developed an injectable therapy based on nanofibers that has enabled paralyzed mice with severe spinal cord injuries to regain the ability to walk.
2051
Explanations for the Havana Syndrome
Science News, Physics, Science, Philosophy, Philosophy of Science
2052
Dopamine Fasting: A Maladaptive Fad (2020)
Dopamine is a neurotransmitter involved in the body’s system for reward and pleasure. A recent trend has people avoiding stimulating activities in the belief that doing so allows the body to rese...
2053
An Introduction to Lagrange Multipliers
Lagrange multipliers are used in multivariable calculus to find maxima and minima of a function subject to constraints (like "find the highest elevation along the given path" or "minimize the cost of materials for a box enclosing a given volume"). It's a useful technique, but all too often it is poorly taught and…
2054
Ultracold, superdense atoms become invisible
MIT physicists have confirmed that as atoms are chilled and squeezed to extremes, their ability to scatter light is suppressed, making them less visible. The findings show the Pauli exclusion principle, or Pauli blocking, applies not just to electrons but also to atoms.
2055
The Greedy Doctor Problem
TL;DR: How to reason about people who are smarter than you. A few proposals, interspersed with reinforcement learning and humorous fiction. Ending on a surprising connection to logical inductors.
2056
Palm oil favors tumor expansion
Ninety per cent of cancer deaths are caused by metastasis, that is to say, the spread of the primary tumour to other organs. Scientists led by ICREA researcher Dr. Salvador Aznar-Benitah at IRB Barcelona have described the mechanism by which a diet rich in palmitic acid makes tumour cells more aggressive, conferring…
2057
Biomarker predicts severity of Covid-19 infection early on
High expression of the fitness gene hFwe-Lose in the lung reliably predicts severe progression
2058
How to grow sodium chloride crystals at home
After trying for 3 years, I found a way to grow transparent, high quality sodium chloride crystals at home. Here's my procedure.
2059
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2061
What really happened at the Millennium Tower?
[Note that this article is a transcript of the video embedded above.] The Millennium Tower is the tallest residential building in San Francisco, with 58 stories above the ground and 419 luxury condominium units. The tower opened to residents in 2009, but even before construction was finished, engi
2062
2063
Electric vehicles could fully recharge in 5 minutes with new cable design
Purdue University is a world-renowned, public research university that advances discoveries in science, technology, engineering and math.
2064
Bar-tailed Godwits regularly travel more than 7,000 miles non-stop
Bar-tailed Godwits regularly travel more than 7,000 miles non-stop. One enthusiast is spreading the word of their amazing migrations, with the help of a research project tracking 20 tagged birds in...
2065
When did computer science theory get so hard?
I posted on When did Math get so hard? a commenter pointed out that one can also ask When did Computer Science Theory Get so Hard? For t...
2066
Open-source automated insulin delivery system given approval by team of experts
More than 40 healthcare professionals and legal experts have issued the first guidance of its kind to support people with type 1 diabetes using Do-it-Yourself (DIY) technology driven systems to manage their condition.
2067
Study finds a difference between neurons of humans and other mammals
Human neurons have a lower density of ion channels than expected, compared to neurons of other mammals, according to a new study. The researchers hypothesize that a lower channel density may have helped the human brain evolve to operate more efficiently.
2068
The Breeder's Equation
R is the response to selection, S is the selection differential, and h 2 is the narrow-sense heritability. This is the workhorse equation for quantitative genetics. The selective differential S, is the difference between the population average and the average of the parental population (some subset of the total…
2069
Nuclear radiation used to transmit digital data wirelessly
Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology.
2070
Nuclear energy is long-term sustainable
Some people claim nuclear fuel is inexhaustible and circular, others say we'll run out soon. We do the math. Turns out, it's roughly as inexhaustible as sunlight.