1501
Seven basic rules for causal inference
Personal website of Dr. Peder M. Isager
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
1502
Full Disk Images of Earth from GOES-17
Geostationary satellites maintain their position relative to earth. This means a parabolic dish can be pointed at the satellite and receive continuous downloads.
1503
Symmetry in Chaos
The following is based upon systems of equations found in "Symmetry in Chaos, A Search for Pattern in Mathematics, Art, and Nature" (the second edition) by Michael Field and Martin Golubitsky. They ask the question whether there are aperiodic chaotic attractors that generate symmetric patterns? Can there be order…
1504
New research reveals longevity gains slowing, life expectancy of 100 unlikely
A new study co-authored by a University of Wisconsin–Madison professor finds that life expectancy gains made by high-income countries in the first half of the 20th century have slowed significantly, and that none of the generations born after 1939 will reach 100 years of age on average. Published in the journal…
1505
Possible association between tattoos and lymphoma
Lund University. Our knowledge regarding the long-term health effects of tattoos is currently poor, and there is not a lot of research within this area. Now a research group at Lund University has investigated the association between tattoos and lymphoma.
1506
Lead is still bad for your brain
Wait, wasn't this solved by the Romans? Anyway, my grandma ate lead paint and she was totally fine.
1507
Fasting boosts stem cells’ regenerative capacity (2018)
Age-related declines in stem cell function can be reversed by a 24-hour fast, according to a new study from MIT. Biologists found fasting dramatically improves stem cells’ ability to regenerate, in both aged and young mice.
1508
The falling nutritional value of crops
The mineral content of wheat and rice is lower today than sixty years ago. Why is that and what does it mean for how we eat?
1509
New copy of earliest poem in English, written 1,3k years ago, discovered in Rome
Old fashioned sleuthing and the help of modern technology leads to discovery of manuscript with poem composed by a farm labourer 1,300 years ago.
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Death of the sampling theorem?
tl;dr: A team from Columbia University led by Ken Shepard and Rafa Yuste claims to beat the 100 year old Sampling Theorem [1,2]. Apparently anti-aliasing filters are superfluous now because one can…
1513
How bioelectricity could regrow limbs and organs
Biologist’s innovative research on how cells rebuild themselves could be the future of regenerative medicine
1514
What is a black start of the power grid?
[Note that this article is a transcript of the video embedded above.] November 1965 saw one of the most widespread power outages in North American history. On the freezing cold evening of the 9th, the grid was operating at maximum capacity as people tried to stay warm when a misconfigured relay tr
1515
Mechanical computer relies on kirigami cubes, not electronics
The mechanical computer uses a complex structure of rigid, interconnected polymer cubes to store, retrieve and erase data without relying on electronic components.
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1517
Physicists observationally confirm Hawking’s black hole theorem for first time
Physicists at MIT and elsewhere have used gravitational waves to observationally confirm Hawking’s black hole theorem for the first time.
1518
Study reveals restoration of retinal and visual function following gene therapy
Bring your curiosity. Bring your passion. Bring your will to change lives. Discover what it’s like to study medicine at UCI.
1519
The Clock in the Mountain
A work crane at the Clock site in western Texas. There is a Clock ringing deep inside a mountain. It is a huge Clock, hundreds of feet tall, designed to tick for 10,000 years. Every once in a while the … Continue reading →
1520
Webb flies Ariane 5: watch the launch live on 25 December
Update 22 December (22.00 CET): launch confirmed for 25 DecemberUpdate 21 December (22.30 CET): new target launch dateESA and NASA will be broadcasting live as the James Webb Space Telescope is launched to space on ESA’s Ariane 5 from Europe’s Spaceport in French Guiana at 12:20 GMT / 13:20 CET on Saturday 25 December.
1521
Mouse Heaven or Mouse Hell?
Explore how biologist John Calhoun's controversial mouse experiments sparked debates about overpopulation, urban life, and human society's future.
1522
Exercise increases number of immune cells in cancer patients
Two new Finnish studies show that short bouts of light or moderate exercise can increase the number of immune cells in the bloodstream of cancer patients.
1523
Turing Test Success
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1524
Yale scientists explain how ketamine vanquishes depression within hours
Ketamine may regenerate synaptic connections between brain cells damaged by stress and depression, according to new Yale-led research.
1525
Entropy explained, with sheep (2016)
An explorable blog post about entropy, with sheep.
1526
Low-cost open source device can measure air pollution anywhere
Flatburn is an open-source, mobile pollution detector from the MIT Senseable City Lab intended to let people measure air quality cheaply.
1527
Mr. Baby Paint and accidentally discovering a new cellular automata
On building Mr. Baby Paint, a radically simple co-op drawing app for toddlers & accidentally discovering a flood-fill cellular automata, plus developing pixel-fattening algorithms for bitmap fonts.
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Beetroot juice lowers blood pressure by changing oral microbiome: study
The blood pressure lowering effect of nitrate-rich beetroot juice in older people may be due to specific changes in their oral microbiome, according to the largest study of its kind. Researchers at the University of