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Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,456 posts.
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Helmhurts: Placing a WiFi router with the Helmholtz equation
A few posts back I was concerned with optimising the WiFi reception in my flat, and I chose a simple method for calculating the distribution of electromagnetic intensity. I casually mentioned that I really should be doing things more rigorously by solving the Helmholtz equation, but then didn't. Well, spurred on by a…
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ESO (European Southern Observatory) Announcing Unprecedented Discovery
Media Advisory: Press Conference at ESO HQ Announcing Unprecedented Discovery
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I think faster than light travel is possible [video]
Science News, Physics, Science, Philosophy, Philosophy of Science
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Omicron Update: Nov 27
There is a lot of anxiety.
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GE Aerospace Successfully Develops and Tests New Hypersonic Dual-Mode Ramjet
A dual-mode ramjet was developed and tested in less than 11 monthsTesting demonstrates a threefold increase in airflow compared to previously flight-tested hypersonic technology
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Resident physicians' exam scores tied to patient survival
New analysis finds tests for new doctors can measure what matters — the life and health of patients
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Image of our satellite-choked night skies
To create this composite image, photographer Brendan Larsen captured almost 600 photographs over a two-hour period and then manually stitched them together. Thi
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Mysterious object unlike anything astronomers have seen before
A team mapping radio waves in the Universe has discovered something unusual that releases a giant burst of energy three times an hour, and it’s unlike anything astronomers have seen before. The team who discovered it think it could be a neutron star or a white dwarf—collapsed cores of stars—with an ultra-powerful…
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Loss of epigenetic information can drive aging in mice
Study implicates changes to way DNA is organized, regulated rather than changes to genetic code
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Saving Jet Fuel
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
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Will Our Understanding of Math Deteriorate Over Time?
Scientific American writes about rescuing the enormous theorem (classification of finite simple groups) before the proof vanishes. How can...
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What is emergence?
Emergence occurs when there is a conceptual discontinuity between two descriptions targeting the same phenomenon. This does not mean that emergence is a purely subjective phenomenon — only th…
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Solar storm risk and EMP attacks
A Q&A style dialogue to separate fact from fiction.
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The Myth of Japanese Longevity
Bioinformatics, genomics, and Javascript
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Space Tethers: Stringing Up the Solar System
A blog dedicated to helping Science Fiction authors create and discuss worlds where a realistic setting can still serve the fiction.
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Trying to improve buffet lines using simulations
I have suspected for years that the classic buffet line system is a deeply flawed method, so I decide to simulate different methods to find out better ways
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North America Is Dripping from Below, Geoscientists Discover
A figure from the study showing rock dripping from the craton. The researchers hypothesize that the dripping is caused by…
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Folding Paper with a Hydraulic Press
What happens when you ignore the math
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First 2D, non-silicon computer developed
In a world first, a team led by researchers at Penn State used two-dimensional materials, which are only an atom thick and retain their properties at that scale, unlike silicon, to develop a computer capable of simple operations. The advancement, published in Nature, represents a major leap toward the realization of…
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A back-projection algorithm to extract 3D volume from shadows
If you'd rather read python than english you can go straight to the code on github: https://github.com/jminardi/volume-from-shadow
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Why is C the symbol for the speed of light? (2004)
"As for c , that is the speed of light in vacuum, and if you ask why c , the answer is that it is the initial letter of celeritas , the Latin word meaning speed." Isaac Asimov in "C for Celeritas (1959)" [1]
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Worldwide power grid with glass insulated HVDC cables
Moving electricity around the world has huge financial and environmental benefits. Unfortunately, current power transmission systems are both lossy and expensive to build. This post explores an alternative design for cables to make undersea power transmission substantially cheaper.