2101
The most famous carbon dioxide absorber
The Apollo 13 astronauts were stranded in space. Their survival depended on if they could make a carbon dioxide absorber inside the spacecraft.
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
2102
How does a computer/calculator compute logarithms?
Summer of Math Exposition 3 - How does a computer/calculator compute logarithms?
2103
Fingers wrinkle the same way every time they’re in the water too long
A question from a child inspired a new biomedical engineering paper.
2104
Canaries in coal mines (2018)
Have you ever wondered what our curators' favourite collection items are? Here, assistant curator Lewis takes us through his rather surprising pick.
2105
Scientists find ways to boost memory in aging brains
In two separate studies, Virginia Tech researchers identified age-related molecular changes in the brain and adjusted them to improve memory.
2106
Can a model trained on satellite data really find brambles on the ground?
Can a model trained on satellite data really find brambles on the ground? We put a new model to the test with a field trip around Cambridge. The results...
2107
2017 Nobel Prize in Medicine for the molecular mechanisms of circadian rhythm
The Nobel Prize in Physiology or Medicine 2017 was awarded jointly to Jeffrey C. Hall, Michael Rosbash and Michael W. Young "for their discoveries of molecular mechanisms controlling the circadian rhythm"
2108
2109
Protein complex prediction with AlphaFold-Multimer
Build AI responsibly to benefit humanity
2110
A supersonic engine core makes the perfect power turbine
It started, as many things do these days, by scrolling on X.
2111
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.
2112
Why you can’t grow cool-climate plants in hot climates
Since moving to Deep South Texas 4 years ago I've come to realize that many plants I used to love growing in the cool mild maritime climate of the SF bay area are impossible to grow where I live. This is not just because of the high daytime heat. It's not as simple as that. Specifically, it is the h
2113
Does the Past Still Exist?
Science News, Physics, Science, Philosophy, Philosophy of Science
2114
Green Material for Refrigeration Identified
Researchers from the UK and Spain have identified an eco-friendly solid that could replace the inefficient and polluting gases used in most refrigerators and air conditioners.
2115
Telomeres – Too much of a good thing?
One of the major themes in aging science of the last 15 years has been that there is natural variation in telomere length, and individuals with longer telomeres have lower disease risk and longer life expectancy than those with shorter telomeres.
2116
A programmer's view of the Universe, part 1: The fish
Bravo. Here's hoping I never reach the end of that vine. I like to think there's always more.
2117
Biomarker predicts severity of Covid-19 infection early on
High expression of the fitness gene hFwe-Lose in the lung reliably predicts severe progression
2118
Clinical trial of a prion disease drug candidate begins enrolling participants
It’s the first time the potential treatment, a small interfering RNA targeting the prion protein, is being tested in humans.
2119
Researcher questions years of his own work with a reexamination of fMRI data
Hundreds of published studies over the last decade have claimed it's possible to predict an individual’s patterns of thoughts and feelings by scanning their brain in an MRI machine as they perform some mental tasks.
2120
2121
No funding for uncomfortable results
Latanya Sweeney blew the whistle on how easy supposedly de-identified data could be re-identified. Her results were not well received.
2122
How Julia ODE Solve Compile Time Was Reduced from 30 Seconds to 0.1
Open Source Software for Scientific Machine Learning
2123
Powering the Lunar Base
NASA’s selection of SpaceX’s Starship within the Human Lander System (HLS) program was both surprising and exciting for space nerds all over. Previously I have written about how Starshi…
2124
2125
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…
2126
Oxford vaccine shows sustained protection of 76% in 3-month gap til second dose
Analyses reveal single standard dose efficacy from day 22 to day 90 post vaccination of 76% with protection not falling in this three-month periodAfter the second dose vaccine efficacy from two standard doses is 82.4% with the 3-month interval being used in the UK. (82.4% effective, with a 95% confidence interval of…
2127
The global population pyramid
Global demographic transition signals a shift from young, growing populations to older, stable ones, reshaping societies and economies.
2128
2129
OneWeb files for bankruptcy
Eutelsat’s OneWeb LEO satellite constellation delivers global, low-latency, high-speed connectivity on land, at sea, and in the air.
2130
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.