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Datacenters in space aren't going to work
There is a rush for AI companies to team up with space launch/satellite companies to build datacenters in space. TL;DR: It's not going to work.
New
The latest blog posts to take off on Hacker News. 4,455 posts.
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Airbus A320 – intense solar radiation may corrupt data critical for flight
Analysis of a recent event involving an A320 Family aircraft has revealed that intense solar radiation may corrupt data critical. Read more.
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Human brains are preconfigured with instructions for understanding the world
Assistant Professor of Biomolecular Engineering Tal Sharf's lab used organoids to make fundamental discoveries about human brain development.
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A woman on a mission to photograph every species of hummingbird
In less than a decade amateur photographer and Hummingbird Spot founder Carole Turek has photographed more than 250 hummingbird species, including one that was long considered extinct.
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Sharper MRI scans may be on horizon thanks to new physics-based model
Researchers at Rice and Oak Ridge National Laboratory have unveiled a physics-based model of magnetic resonance relaxation that bridges molecular-scale dynamics with macroscopic magnetic resonance imaging (MRI) signals, promising new insight into how contrast agents interact with water molecules.
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We Induced Smells With Ultrasound
First-ever ultrasound olfactory stimulation in humans. We induced distinct artificial smells like campfire and fresh air using focused ultrasound - a nose BCI breakthrough.
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The 101 of analog signal filtering (2024)
Some intuition about this topic can be developed without summoning the ghost of Pierre-Simon Laplace.
400
It's hard to build an oscillator
Especially if you want it to work.
401
New Glenn Update
Blue Origin announced a series of upgrades to New Glenn designed to increase payload performance and launch cadence, while enhancing reliability.
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The Boring Part of Bell Labs
How Bell Labs supported itself between moonshots
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WeatherNext 2: Our most advanced weather forecasting model
The new AI model delivers more efficient, more accurate and higher-resolution global weather predictions.
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Aldous Huxley predicts Adderall and champions alternative therapies
If delivered today, the last of Huxley’s 7-part lecture series at MIT would probably be categorised under motivational talks or self-help strategies. It surv...
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A new chapter begins for EV batteries with the expiry of key LFP patents
Expiry of key LFP battery patents in 2022 reshaped the EV sector—open access to tech is driving global strategy shifts as old IP barriers fall.
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Manganese is Lyme disease's double-edge sword
Lyme disease is caused by the bacterium Borrelia burgdorferi, which relies on the antioxidant manganese to protect it from its host’s immune system. Both removing or adding too much manganese weakens the bacteria. Disrupting this balance could lead to new treatments for Lyme disease.<br />
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Marble: A Multimodal World Model
Marble, our frontier multimodal world model, is available to everyone starting today
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GLP-1 drugs linked to lower death rates in colon cancer patients
In an analysis of more than 6,800 colon cancer patients across all University of California Health sites, researchers found that those taking glucagon-like peptide-1 (GLP-1) medications were less than half as likely to die within five years compared to those who weren’t on the drugs (15.5% vs. 37.1%
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How Tube Amplifiers Work
How Tube Guitar Amplifiers Work
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Microplastics: No longer a "maybe"
It’s Already Inside Us Microplastics are not just an environmental problem affecting nature. They’re in our blood [1] , lungs [2] , placentas [3] , brains [4] , and breast milk [5] . Every human tissue scientists have tested so far has come back contaminated. In diseased tissue samples of people with chronic illnesses…
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A new Google model is nearly perfect on automated handwriting recognition
A mysterious new model currently in testing on Google’s AI Studio is nearly perfect on automated handwriting recognition but it is also showing signs of spontaneous, abstract, symbolic reasoning.
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Metabolic and cellular differences between sedentary and active individuals
We're discussing a paper that demands attention...
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Study finds memory decline surge in young people
A Large US Study Finds Memory Decline Surge in Young People
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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.
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Analysis indicates that the universe’s expansion is not accelerating
The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously thought, a new study suggests. "Remarkab...
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Mathematical exploration and discovery at scale
Bogdan Georgiev, Javier Gómez-Serrano, Adam Zsolt Wagner, and I have uploaded to the arXiv our paper “Mathematical exploration and discovery at scale”. This is a longer report on…
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New gel restores dental enamel and could revolutionise tooth repair
A new material has been used to create a gel that can repair and regenerate tooth enamel, opening up new possibilities for effective and long-lasting preventive and restorative dental treatment.
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Fourier Transforms
Fourier Transform
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The shadows lurking in the equations
If you've ever graphed equations, chances are you have only ever graphed equations in what I refer to as "Binary mode" - which draws a line where the equation is EXACTLY equal, and leaves white everywhere else.
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Measuring the doppler shift of WWVB during a flight
We advertise 100 kHz as the lower edge of HackRF Pro ’s operating frequency range, but that isn’t a hard limit. While working on the design, I realized that it should work fairly well to pick up longwave time signals such as WWVB , broadcast at 60 kHz from Colorado, USA.