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New
The latest blog posts to take off on Hacker News. 4,456 posts.
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Theoretical way to levitate objects with light
Specially designed materials enable objects of different sizes to be levitated and manipulated with light, thanks to new research from Caltech scientists.
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‘A Swiss cheese-like material’ that can solve equations
Engineering professor Nader Engheta and his team have demonstrated a metamaterial device that can function as an analog computer, validating an earlier theory about ‘photonic calculus.’
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Removing oil left behind in 2.5B gallons of produced water every day in U.S.
Purdue University is a world-renowned, public research university that advances discoveries in science, technology, engineering and math.
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Microsoft, UW demonstrate first fully automated DNA data storage
Researchers encode the word “hello” in fabricated DNA, convert it back to digital using fully automated DNA storage system.
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Cambridge spin-out starts producing graphene at commercial scale
A recent University of Cambridge spin-out company, Paragraf, has started producing graphene – a sheet of carbon just one atomic layer thick – at up to eight inches (20cm) in diameter, large enough for commercial electronic devices.
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The Paris Pneumatic Clock Network (2018)
Douglas Self, clock, Pneumatic
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5-MeO-DMT Associated with Improvements in Depression, Anxiety
Study: Fast-acting psychedelic associated with improvements in depression and anxiety ›
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Quantum Computing for the Curious
Presented in an experimental mnemonic medium that makes it almost effortless to remember what you read
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Ketamine: Now By Prescription
Last week the FDA approved esketamine for treatment-resistant depression. Let’s review how the pharmaceutical industry works: a company discovers and patents a potentially exciting new drug. …
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Longevity and anti-aging research: ‘Prime time for an impact on the globe’
Research into extending humanity’s healthy lifespan has been progressing rapidly in recent years. In February, a group of aging and longevity scientists founded a nonprofit to foster the work and serve as a resource for governments and businesses looking to understand the potentially far-reaching implications of a…
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Atlas observes light scattering off light
Figure 1: ATLAS event display showing the energy deposits of two photons in the electromagnetic calorimeter (green) on opposite sides and no other activity in the detector, which is the clean signature of light-by-light scattering. The Feynman diagram of this process is shown in the lower right corner. (Image: ATLAS…
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Nitrogen-fixing trees “eat” rocks, play pivotal role in forest health
CORVALLIS, Ore. – By tapping nutrients from bedrock, red alder trees play a key role in healthy forest ecosystems, according to a new study. The study published today in the journal Proceedings of the National Academy of Sciences.
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How I Learned to Love Algebraic Geometry
A more polished version of this article appeared on Nautilus on 2019 February 28. This version has some more material. How I Learned to Stop Worrying and Love Algebraic Geometry In my 50s, too old …
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Calculating a record-breaking 31.4T digits of Pi with GCP
Pi in the sky: Calculating a record-breaking 31.4 trillion digits of Archimedes’ constant on Google Cloud
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Opioids and the Labor Market (2018)
This paper finds evidence that opioid availability decreases labor force participation while a large labor market shock does not influence the share of opioid abusers. We first identify the effect of availability on participation using the geographic variation in opioid prescription rates. We use a combination of the…
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John Ioannidis Aims His Bazooka at Nutrition Science (2018)
Dr. Ioannidis is not just a bull in a china shop; he's a bazooka in a china shop. And now the bazooka is aimed at shoddy nutrition research, which he suggests is in need of "radical reform."
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Black Hole Propulsion as Technosignature
It’s not just binary BH’s that can do this, a single fast rotating BH that is tumbling could do it as well.
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A Behind the Scenes Take on Lithium-Ion Battery Prices
Automakers and policy makers are increasingly voicing their belief that the passenger vehicle of the future will be powered (partially or fully) by electricity. There remains, however, a lack of consensus on the timing and speed of the transition, in large part due to differing opinions on current and future…
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Bumblebees Sleeping in Flowers (2012)
Above you can see photos of Garden bumblebee (Bombus hortorum) male falling asleep on a spike of lavander flower. I took the photograph in the evening, just as sunset was over and the temperature w…
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Link between health spending and life expectancy: US is an outlier (2017)
Americans have a lower life expectancy than people in other rich countries despite paying much more for healthcare. What factors may explain this?
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Heat Pumps Work Miracles
[ An updated treatment of some of this material appears in Chapter 6 of the Energy and Human Ambitions on a Finite Planet (free) textbook. ]
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Why Drugs That Work in Mice Don't Work in Humans
OLXTOTO hadir sebagai Panglima Sekutu situs toto dan bandar toto Macau resmi dengan sistem stabil, layanan terpercaya, serta pengalaman bermain yang nyaman.
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Practical Facts about the Human Brain
I don’t think it’d have been possible for me to connect with the topic of emotional resilience without a really solid amount of scientific evidence and brain facts supporting it. As a self-identified left-brained male, I need a lot of safety signals from the world of science to really allow myself to go deeper into […]