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Thousand year-old windmills in Iran (2017)
The Long Now Foundation fosters long-term thinking. Our work encourages imagination at the timescale of civilization — the next and last 10,000 years — a timespan we call the long now.
New
The latest blog posts to take off on Hacker News. 323 posts.
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Why does F = ma?
By Michael Nielsen, November 23, 2019
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Differences between expert and novice brains in mice: study
When mice learn to do a new task, their brain activities change over time as they advance from ‘novice’ to ‘expert.’ The changes are reflected in the wiring of cell circuits and activities of neurons. Using a two-photon imaging microscope and a wealth of genetic tools, researchers from Cold Spring Harbor Laboratory…
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The impact of direct air carbon capture on climate change
By Michael Nielsen, November 21, 2019
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Music Generates Feelings That Are Only Weakly Bound to the Music
Here I use the word "bound" in the same sense as "bind" in the "binding problem".
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The cognitive costs of air pollution
Air pollution is a very big deal. Its adverse effects on numerous health outcomes and general mortality are widely documented . However, our understanding of its cognitive costs is more recent and those costs are almost certainly still significantly under-emphasized. For example, cognitive effects are not mentioned in…
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Tunnel Boring Machines (2018)
Meet the Most Interesting Tunnel Boring Machines
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Instant stone (just add water) (2018)
If cement weren't 10,000 years old, it would seem like a futuristic technology: liquid rock!
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Eigenvectors from eigenvalues
Peter Denton, Stephen Parke, Xining Zhang, and I have just uploaded to the arXiv the short unpublished note “Eigenvectors from eigenvalues”. This note gives two proofs of a general eige…
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Happiness and Life Satisfaction (2017)
Self-reported life satisfaction differs widely between people and between countries. What explains these differences?
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Homology
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Book Review: The Body Keeps the Score
I. The Body Keeps The Score is a book about post-traumatic stress disorder. The author, Bessel van der Kolk, helped discover the condition and lobby for its inclusion in the DSM, and the brief fora…
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When His SR-71 Blackbird Disintegrated, This Pilot Free Fell from Space
During the early days of testing for the legendary SR-71 Blackbird there were some harrowing mishaps, the details of which have rarely come to light. On January 25, 1966, test pilot Bill Weaver and Lockheed flight test reconnaissance and navigation systems specialist Jim Zwayer experienced their plane vanishing around…
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German solar and wind are triple the cost of French nuclear, last half as long
France’s nuclear energy spending was 60% of what Germany spent on renewables. France gets about 400 Terawatt hour per year from nuclear but Germany gets 226 Terawatt-hours each year. 45 Terawatt-hours of Germany’s renewable power comes from burning biomass which generates air pollution.
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Project Silica proof-of-concept stores movie on quartz glass
Microsoft and Warner Brothers collaborate to store and retrieve the 1978 'Superman' movie on a piece of glass roughly the size of a drink coaster.
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Spiders and ants inspire metal that won't sink
Rochester researchers have created a metallic structure so water repellent, it refuses to sink—no matter how often it is forced into water.
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Glyphosate in Organic Hydroponic Food Production
The National Organic Program (NOP) is now allowing the cancer-causing herbicide, glyphosate, in “organic” hydroponic production.
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Starlink is a big deal
Part of my series countering misconceptions in space journalism. Now available in audio form. Starlink, SpaceX’s plan to serve internet via tens of thousands of satellites, is a staple in the…
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Living skin can be 3D-printed, with blood vessels
TROY, N.Y. — Researchers at Rensselaer Polytechnic Institute have developed a way to 3D print living skin, complete with blood vessels. The advancement, published online today in Tissue Engineering Part A, is a significant step toward creating grafts that are more like the skin our bodies produce naturally.
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The crisis in physics is not only about physics
Science News, Physics, Science, Philosophy, Philosophy of Science
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The SpaceX Starship is a big deal
Part of my series on common misconceptions in space journalism. Now available in audio form. SpaceX has been working on some variant of the Big Falcon Rocket for almost a decade, with a publicly an…
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Land Use
How is humanity using the Earth’s land? And how can we decrease our land use so that more land is left for wildlife?
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Internet
More than half of the world is online, but the Internet is still young.
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Biology Is Eating the World
We are at the beginning of a new era, where biology has shifted from an empirical science to an engineering discipline. After a millennia of using man-made approaches for controlling or manipulating biology, we have finally begun using nature’s own machinery—through biological engineering—to design, scale, and…
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Using Deep Learning to Predict the Olfactory Properties of Molecules
Posted by Alexander B Wiltschko, Senior Research Scientist, Google Research Smell is a sense shared by an incredible range of living organisms, a...
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Double Slit Experiment No Mystery
How can you be in two places at once When you’re not anywhere at all — Firesign Theater [Note: this is NOT original research. I just read the right book] The famous double slit experime…