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Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 248 posts.
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Cancer ‘vaccine’ eliminates tumors in mice
Activating T cells in tumors eliminated even distant metastases in mice, Stanford researchers found. Lymphoma patients are being recruited to test the technique in a clinical trial.
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Seaweed in Cow Feed Reduces Methane Emissions Almost Entirely
Seaweed could be the key to stopping industrial agriculture from destroying the planet
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Poor Grades Tied to Class Times That Don’t Match Our Biological Clocks
Schedules of night owls, morning larks and daytime finches may predict their educational outcomes
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NASA’s IMAGE satellite, lost since 2005, is alive
Over the past week the station has been dedicated to an S-band scan looking for new targets and refreshing the frequency list, triggered by the recent launch of the mysterious ZUMA mission. This t…
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Berkeley offers its data science course online for free
Data science is increasingly popular at Berkeley because the world is increasingly data-driven
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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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Why does a spray bottle work?
Exploring a simple machine I took apart a simple spray bottle to see how it kept fluid flowing only in one direction from the reservoir to the nozzle. It does so with simple check valves made of two pieces of plastic, a spring, and a small sphere. It’s a simple way to solve a tricky problem. A simple spray bottle One…
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AWS Ground Station – Ingest and Process Data from Orbiting Satellites
Did you know that there are currently thousands of satellites orbiting the Earth? I certainly did not, and would have guessed a few hundred at most. Today, high school and college students design, fabricate, and launch nano-, pico-, and even femto-satellites such as CubeSats, PocketQubes, and SunCubes. On the…
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Akin's Laws of Spacecraft Design (2003)
1. Engineering is done with numbers. Analysis without numbers is only an opinion.
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Successful second round of fusion experiments with Wendelstein 7-X
The experiments conducted from July until November at the Wendelstein 7-X fusion device at the Max Planck Institute for Plasma Physics (IPP) in Greifswald have achieved higher values for the density and the energy content of the plasma and long discharge times of up to 100 seconds – record results for devices of the…
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1 in 4 Statisticians Say They Were Asked to Commit Scientific Fraud
As the saying goes, "There are three kinds of lies: lies, damned lies, and statistics." We know that's true because statisticians themselves just said so. A jaw-dropping study reveals that nearly 1 in 4 of them report being asked to remove or alter data to better support a hypothesis. That is called scientific fraud.
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Good sleep, good learning, good life (2012)
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Hubble finds first galaxy in the local universe without dark matter
An international team of researchers using the NASA/ESA Hubble Space Telescope and several other observatories have, for the first time, uncovered a galaxy in our cosmic neighbourhood that is missing most — if not all — of its dark matter. This discovery of the galaxy NGC 1052-DF2 challenges currently-accepted…
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The Multiworse Is Coming
Science News, Physics, Science, Philosophy, Philosophy of Science
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What is happening in the Arctic is now beyond words, so here are the pictures
The climate emergency requires actions at emergency speed for a rapid transition to a post-carbon, safe-climate future.
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Air pollution linked to “huge” reduction in intelligence
Air pollution can have a “huge” negative effect on cognitive intelligence – especially amongst older men – according to a study released this past August.
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Yale physicists find signs of a time crystal
Time crystals — a form of matter that “ticks” when exposed to an electromagnetic pulse — may help to build better atomic clocks, gyroscopes, and quantum tech.
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Human blood cells can be directly reprogrammed into neural stem cells
Scientists from the German Cancer Research Center (DKFZ) and the stem cell institute HI-STEM* in Heidelberg have succeeded for the first time in directly reprogramming human blood cells into a previously unknown type of neural stem cell. These induced stem cells are similar to those that occur during the early…
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Hennessy and Patterson win Turing Award
Hennessy and Patterson pioneered a systematic, quantitative approach to the design and evaluation of computer architectures that has had enduring impact on the microprocessor industry. Their reduced instruction set computer (RISC) approach has led to lasting and repeatable principles that generations of architects…
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Chinese Tokamak reaches over 100M degrees
Experimental Advanced Superconducting Tokamak (EAST), nicknamed Chinese artificial sun, has achieved over 100 million degrees electron temperature in the core plasma in its 2018 four-month-long experiment campaign.
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Applied Category Theory
It just became a lot easier to learn about applied category theory, thanks to this free book: • Brendan Fong and David Spivak, Seven Sketches in Compositionality: An Invitation to Applied Cate…