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Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,452 posts.
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No science, no startups: The innovation engine we're switching off
Tons of words have been written about the Trump Administrations war on Science in Universities. But few people have asked what, exactly, is science? How does it work? Who are the scientists? What d…
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Why do railway tracks have crushed stones alongside them?
Track ballast is the name for the crushed stones next to railway tracks. They are used by Railway Track Designers for numerous reasons
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The Lunacy of Artemis
Introduction A Note on Apollo I. The Rocket II. The Capsule III. The Orbit IV. Gateway V. The Lander VI. Refueling VII. Conclusion Notes
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Electric motors with no rare earths
As a pioneer of electric motors using no rare earths, Renault Group is unique on the automotive market, a position reasserted for strategic reasons.
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Naval Architecture
Interactive article explaining how ships float and maintain their stability.
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A (possible) solution to Covid-19
Notice. Since this seems to be such a common question I think I should describe my background. I have a PhD in molecular microbiology and I was once a tenured academic (professor). I now work in the biotech sector. I have published a number of peer reviewed papers in virology. If you really want to know more about me…
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A flawed paper in management science has been cited more than 6k times
In a post entitled, “How Institutional Failures Undermine Trust in Science: The Case of a Landmark Study on Sustainability and Stock Returns,” Andy King (my collaborator on the project on scheduled post-publication review ) tells a disturbing story of the failure of the scholarly publication process :
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What Americans die from vs. what the news reports on
What do Americans die from, and what do the New York Times, Washington Post, and Fox News report on?
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“The moon blew up without warning and for no apparent reason”
Intriguing title, no? These are the first eleven words of Neal Stephenson's novel Seveneves, which set up the remaining 600 pages as an extended treatise on the future of humanity as it copes with certain annihilation. I thoroughly recommend it, as long as you can deal with hundreds of pages of orbital mechanics. In…
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We Made One Gram Of Remdesivir
Two of the experimental coronavirus drugs, chloroquine, and hydroxychloroquine are a breeze to synthesize. But remdesivir, possibly the most promising candidate, is anything but. It's a royal pain. Here's why.
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Europe’s next-generation weather satellite sends back first images
The first images from the Meteosat Third Generation-Sounder satellite have been shared at the European Space Conference in Brussels, showing how the mission will provide data on temperature and humidity, for more accurate weather forecasting over Europe and northern Africa.
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Rolling Shutters
I remember seeing once the following photo from Flickr, and having my brain melt slightly from trying to figure out what went wrong: The issue was the propeller was rotating as the camera detector 'read out', i.e. there was some motion during the exposure of the camera. This is an interesting thing to think about…
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Scientists glue two proteins together, driving cancer cells to self-destruct
Stanford researchers hope new technique will flip lymphoma protein's normal action - from preventing cell death to triggering it.
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Oh My Gosh, It’s Covered in Rule 30s
New British train station design identified as cellular automata rule 30. Generating rule-based patterns. And a website that lets you try it yourself.
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Quantum Supremacy Using a Programmable Superconducting Processor
Posted by John Martinis, Chief Scientist Quantum Hardware and Sergio Boixo, Chief Scientist Quantum Computing Theory, Google AI Quantum Physicist...
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Earth and Sun
Interactive article about Earth and Sun.
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Reality has a surprising amount of detail (2017)
My dad emigrated from Colombia to North America when he was 18 looking looking for a better life. For my brother and I that meant a lot of standing outside in the cold. My dad’s preferred method of improving his lot was improving lots, and my brother and I were “voluntarily” recruited to help working on the buildings…
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Young children would rather explore than get rewards
Young children will pass up rewards they know they can collect to explore other options, a new study suggests. Researchers found that when adults and 4- to 5-year-old children played a game where certain choices earned them rewards, both adults and children quickly learned what choices would give them the biggest…
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The health benefits of better air
Why the air you breathe matters, and what to do about it.
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Maps distort how we see the world
30 Maps to Rethink the World
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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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Monkey MindPong
Get the latest on neurotech directly from our experts. Check out the Neuralink blog for news, insights, and behind-the-scenes looks at our work.
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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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Webb and Hubble confirm Universe's expansion rate
Webb measurements shed new light on a decade-long mysteryThe rate at which the Universe is expanding, known as the Hubble constant, is one of the fundamental parameters for understanding the evolution and ultimate fate of the cosmos. However, a persistent difference, called the Hubble Tension, is seen between the…