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The Greedy Doctor Problem
TL;DR: How to reason about people who are smarter than you. A few proposals, interspersed with reinforcement learning and humorous fiction. Ending on a surprising connection to logical inductors.
Topics /
Science & Space
The most popular blog posts about science & space on Hacker News. 4,455 posts.
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New type of ultraviolet light makes indoor air as safe as outdoors
A new type of ultraviolet light that is safe for people destroyed more than 98% of airborne microbes in a room within five minutes, a study found.
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Danish Study: No link between vaccines and autism or other health conditions
A new Danish study finds no association between aluminum in childhood vaccines and 50 different health conditions, including autism, asthma, and autoimmune diseases. The findings reaffirm the safety of Denmark’s childhood vaccination program.
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Study: Time-Restricted Eating Improves Cardiovascular Health for Firefighters
In a recent collaborative effort, physicians with UC San Diego Health and scientists at the Salk Institute reported a form of intermittent fasting, called time-restricted eating, improved the health of study participants who had been diagnosed with metabolic syndrome.
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How far could the sun possibly be?
The Greeks found the minimum possible distance to the Sun is a few million miles. Today we'll see how the speed of light can provide a maximum distance.
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DSM Disorders Disappear in Statistical Clustering of Psychiatric Symptoms (2024)
Whither Major Depression?
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A jacket that harvests drinking water from the air
The advance in fabric technology comes alongside a new benchmark for atmospheric water harvesting.
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An ultra-sensitive on-off switch helps axolotls regrow limbs
Stanford Medicine researchers discover an "on-off" switch that powers tissue regeneration in axolotls, a type of salamander.
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Vasa's sister ship Äpplet found
Marine archaeologists from Vrak - Museum of Wreck have found the wreck of the naval vessel Äpplet, Vasa's sister ship. The ship was first launched in 1629 and was built by the same master shipbuilder who completed the Vasa. The discovery was made within the research programme
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Science Is Open Software
TL;DR I claim that modern science is synonymous with open source software. This post explains why, why it matters, and what you can (and should) do next. Why do you care about (open source) software? - Everyone I spend a lot of my time working on software. I have been asked why software matters more times than I can…
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iPhone lidar with applications for the geosciences
Lidar (light detection and ranging) is a common remote sensing technique used to create high-resolution three-dimensional models of landscapes and built features. Lidar uses laser pulses to measure distances to the ground or other features. Traditionally, lidar scanners are mounted to airborne or terrestrial…
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An engineering history of the Manhattan Project
The Manhattan Project, the US program to build an atomic bomb during WWII, is one of the most famous and widely known major government projects: a survey in 1999 ranked the dropping of the atomic bomb as the top news story of the 20th century. Virtually everyone knows that the project built the bombs that were dropped…
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ICE/ISEE-3 to return to an Earth no longer capable of speaking to it
It's with great sadness that I report that the Goddard Space Flight Center team has determined that we will not be able to regain control of the venerable…
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Reversing Mental Age with Psychedelics
INTRODUCTION There are some overlaps in the effects of serotonergic psychedelic drugs such as LSD, peyote, psilocybin mushrooms and also the state of mind that newborn infants and young children ar…
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Everything Is Correlated
Anthology of sociology, statistical, or psychological papers discussing the observation that all real-world variables have non-zero correlations and the implications for statistical theory such as ‘null hypothesis testing’.
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When There’s an Audience, People’s Performance Improves
Follow the Johns Hopkins Medicine newsroom for the latest updates in medicine, scientific discovery, and next generation medical education, expert sources, and media contact information.
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The Antikythera mechanism – 254:19 ratio
A couple of followups on a recent episode of In Our Time.
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Mapping the off-target effects of every FDA-approved drug in existence
6.2k words, 29 minutes reading time
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Wav2vec Overview: Semi and Unsupervised Speech Recognition
A mid-depth cap with classic style for any occasion, this Nike Club Cap comes in smooth cotton twill that's been softly washed for casual, daily comfort. Soft and unstructured, the precurved bill makes for easy styling, and the adjustable back-strap lets you find the right fit. Nike Hat Size 6 1/2 6 5/8 6 3/4 6 7/8 7…
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A Practical Guide to Lasers for Experimenters and Hobbyists
However, many others have contributed in one form or another (newsgroup postings, email, laser parts, etc.). They are cited in the Acknowledgments and/or in the individual sections which contain their material. And, by the way, the name: "Sam's Laser FAQ" was more or less created by those who have read and commented…
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How speakers make sound
Check out Animagraffs on youtube > .
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MINERVA-II1: Successful image capture, landing on Ryugu and hop
MINERVA-II1: Successful image capture, landing on Ryugu and hop!
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There are now more people over sixty-four than children younger than five
What is the age profile of populations around the world? How did it change and what will the age structure of populations look like in the future?
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