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Cancer death rates are falling, five-year survival rates rising
Cancers are one of the leading causes of death globally. Are we making progress against them?
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 323 posts.
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Hundreds of dogs in Norway hit by mystery illness
The Norwegian Food Safety Authority
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Dutch radio amateurs image far side of the Moon using Chinese satellite data
This image shows the far side of the Moon, as well as our own planet Earth. It was taken with a camera linked to an amateur radio transceiver on board the Chinese DSLWP-B / Longjiang-2 satellite (call sign BJ1SN), currently in orbit around the Moon, and transmitted back to Earth where it was received with the…
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Hepatitis C kills more Americans than all other infectious diseases combined
Hepatitis C has become so widespread that experts are calling on doctors to screen all adults 18 to 79, even those with no known risk factors or symptoms.
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Dark matter nightmare: What if we are just using the wrong equations?
Science News, Physics, Science, Philosophy, Philosophy of Science
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Against Against Pseudoaddiction
I. “Pseudoaddiction” is one of the standard beats every article on the opioid crisis has to hit. Pharma companies (the story goes) invented a concept called “pseudoaddiction”…
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Exercise, fasting shown to help cells shed defective proteins
A new study from the Blavatnik Institute finds that intense exercise and fasting activate hormones that boost cells’ capacity to dispose of defective proteins, which clog up the cell, interfere with its functions, and, over time, precipitate diseases including neurodegenerative conditions such as ALS and Alzheimer’s.
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What is energy, actually? (2011)
That’s an easy go: energy is the amount of (on) my electricity bill, or maybe of (on) my natural gas bill. If I am very concentrated, I might add that it is also the money I spend at the gasoline pump, and if I am even more concentrated I will suggest that it might have something to do with the filling up of my…
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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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Geometry, Algebra, and Intuition (2017)
I have a confession to make: I have always found symbolic algebra more intuitive than geometric pictures. I think you’re supposed to feel the opposite way, and I greatly admire people who think and communicate in pictures, but for me, it’s usually a struggle.
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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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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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Calculus for the Curious
Some weeks ago I got involved in a discussion on Twitter about, which books to recommend on the history of calculus. Somebody chimed in that Steven Strogatz’s new book would tell you all that you n…
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How Radar Works
Radar is one of the most versitile sensors we have to determine what is happening in an environment. Some common applications include air traffic control, weather prediction, automated driver assist, astronomy and terrain mapping. Given that these applications have wildy varying requirements on resolution, range and…
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SpaceX Raptor: Methane fueled full-flow staged combustion cycle engine
SpaceX's new raptor engine is a methane fueled full flow staged combustion cycle engine and its so hard to develop, no engine like this has ever flown before!Now this topic can be really intimidating so in order to bring the Raptor engine into context, we’re going to do an overview of a few common types of rocket…
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Breakthrough in Synthetic Vaccine Technology Requires No Refrigeration
A new type of vaccine that can be stored at warmer temperatures, removing the need for refrigeration, has been developed for mosquito-borne virus Chikungunya in a major advance in vaccine technology. The findings, published in Science Advances today [Wednesday 25 September], reveal exceptionally promising results for…
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What It's Like to View a SpaceX Falcon Heavy Launch
Olivier Forget's Personal Blog
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In the foundations of physics we haven't seen progress for the past four decades
Science News, Physics, Science, Philosophy, Philosophy of Science
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Color Spaces
Interactive article explaining color spaces and how they're used to express color.
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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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Some people who take psychedelics continue hallucinating indefinitely
[Related to: Relaxed Beliefs Under Psychedelics And The Anarchic Brain, HPPD And The Specter Of Permanent Side Effects] I. Hallucinogen persisting perceptual disorder is a condition where people wh…
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The exponential function is a miracle
From the highly eclectic blog of Mark Dominus