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rappatic

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www.runnersworld.com 4d ago

British runner Josh Kerr breaks 27-year-old world record in the mile

rappatic
3pts0
en.wikipedia.org 1mo ago

The German Tank Problem

rappatic
2pts1
www.cnn.com 2mo ago

Kenya's Sebastian Sawe becomes first man to run sub two-hour marathon

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5pts0
nickbostrom.com 3mo ago

Superintelligent Will (2012) [pdf]

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1pts0
idlewords.com 3mo ago

The Lunacy of Artemis (2024)

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1pts0
practicespace.substack.com 6mo ago

Students aren't asking for help anymore. That could be a good thing

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3pts0
calpaterson.com 9mo ago

An oral history of Bank Python (2021)

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1pts0
www.explorefall.com 10mo ago

Fall Foliage Map 2025

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252pts37
kotlinlang.org 1y ago

Null safety

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whatisstoicism.com 1y ago

Hierocles' Circles

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chicagounbound.uchicago.edu 1y ago

Torture and Plea Bargaining (1978) [pdf]

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4pts0
www.lesswrong.com 1y ago

Examples of Highly Counterfactual Discoveries (2024)

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5pts1
en.wikipedia.org 1y ago

De Rerum Natura

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www.ncbi.nlm.nih.gov 2y ago

The overfitted brain: Dreams evolved to assist generalization (2021)

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1pts0
priceonomics.com 2y ago

How the Father of Claymation Lost His Company (2014)

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5pts2
math.berkeley.edu 2y ago

Tai's Model for finding the area under a curve (1994) [pdf]

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4pts2
muziejus.github.io 2y ago

Fabula and Sjužet in "Wandering Rocks"

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1pts0
en.wikipedia.org 2y ago

Moose test

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en.wikipedia.org 2y ago

Countersteering

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www.newyorker.com 2y ago

Inside the Cultish Dreamworld of Augusta National, Home to the Masters (2019)

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1pts0
www.nytimes.com 2y ago

The Terrifying Allure of Mona Island

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en.wikipedia.org 2y ago

Dagen H, the day Sweden switched from left- to right-hand driving

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3pts1
en.wikipedia.org 2y ago

Kishōtenketsu

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medium.engineering 2y ago

The curious case of the disappearing Polish Ś (2015)

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125pts44
www.newyorker.com 2y ago

Should a Charge of Plagiarism Ruin Your Life? (2004)

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2pts0
insidegovuk.blog.gov.uk 2y ago

Gov.uk has a max sentence length of 25 words

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18pts11
www.google.com 2y ago

Fascism: One Hundred Questions Asked and Answered (1936) [pdf]

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2pts0
bigthink.com 3y ago

Why Germany is a blank spot on Google’s Street View

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2pts0
en.wikipedia.org 4y ago

French Republican Calendar

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9pts0

East African dominance over track events has largely ended. The 1500m world record is held by a West African, while the mile and 3000m world records are now held by white Europeans. The 5000m at the recent World Championships had no East African medalists, and the 10000m had just one. Same goes for the most recent Olympic 5000m.

Compare this with the Olympic and World Championship podiums for the 2000s and 2010s; I don't believe a non-East-African-born athlete won a single 5000/10000m medal for 20 years straight.

The quality of HN articles has degraded rapidly in the last year. It seems a meaningful fraction of articles posted here, especially most blog posts, are now AI generated. (Of course, this is the case for the rest of the internet too, but HN has always been a haven from the rest of the internet.)

When I see dark matter in the news I'm always reminded of the story of Vulcan.

In the 1800s, detailed observations of the planet Mercury showed that its orbit was slightly different than Newtonian mechanics predicted-- a difference of about 43 arcseconds per century. The study was rigorous enough to rule out any observation errors.

Le Verrier, the astronomer who made these observations, wondered how to explain the difference. A decade earlier, he had noticed a similar irregularity in the orbit of Uranus, which led to the discovery of Neptune, whose gravity caused these perturbations. So Le Verrier reasoned that something similar must be going on for Mercury, and he posited the existence of Vulcan, a tiny planet close to the Sun.

Many attempts were made for decades to observe Vulcan. It was even included on some maps of the Solar System at the time (https://www.loc.gov/resource/g3180.ct003790). But it was never conclusively observed.

When Einstein published his theory of relativity in 1915, the mystery of Mercury's orbit was finally explained-- Newtonian mechanics were simply incomplete, and the irregularity of Mercury's orbit was due to relativistic effects.

Could it be that something similar is happening today? Observations of gravity on galactic scales doesn't quite align with what relativity would predict, so we use dark matter to fill the gaps. We've tried for decades to detect dark matter, with no dice. Is our theory of gravity simply incomplete?

MOND may not be the solution, but I'm still skeptical about dark matter.

Oleophobic coating is standard on phones and tablets, which is part of why they don’t pick up fingerprints as easily.

Some brands offer coating you can DIY yourself (eg ProofTech OLEOPEL) but these seem mostly designed for phone screens. I don’t know whether they’d be as effective on laptop screens

Similarly, it's possible to take the derivative of a song. You can use a Fourier transform to express the song's waveform as a series of sin and cosine functions, then take the derivative.

Imagine, for the sake of simplicity, you could express the song's waveform with the function 13 * sin(41x).

The derivative of this function is 533 * cos(41x).

Cosine, of course, is just a phase shifted sine, and the constant coefficient inside the function stays the same. So you're not changing anything about the shape of the wave, just stretching it vertically.

This has the effect of mimicking a "high pass filter," amplifying the volume of the highs.

Well yeah, when you exclude all the successful and profitable sectors things do start looking bad.

Just in: most people are actually short! Excluding people over 6 feet tall, the average height is only 5 ft 8!

MacBook Neo 5 months ago

just unify the two already

Yeah but some people buy both, and apple wants to keep it that way

Layoffs at Block 5 months ago

"ChatGPT, write a letter to my company about laying 40% of them off but don't capitalize anything"

Layoffs at Block 5 months ago

i'm gonna write this terrible news in all lowercase cause it's super aesthetic. maintain a bit of professionalism for the 4,000 people whose lives i'm throwing into turmoil? i don't think so, i have my shift key taped over so i don't accidentally show respect to anybody

His organization says 32 states currently don't have a single competitive congressional race

I agree that the system is broken, but this is not a very fair statistic. 5 states have only a single seat in the House of Representatives. A further 7 states have just two seats. In total, there are 23 states with 5 seats or fewer. These states are all small and rural, which doesn't exactly make for a diverse population and means the seats tend to be safe R. For the states with a single major city (like Omaha for Nebraska) that city typically has its own district, and will hence be safe D in a sea of safe R. It's only in the more populous, more diverse areas where you start to get a lot of people living together who disagree with each other. This is what creates competitive races.

Unreal numbers 5 months ago

I think this article should’ve used the Cauchy sequence method to construct the reals instead of Dedekind cuts. It would’ve built on the earlier mention of equivalence classes.