Microrobots can brush and floss teeth

Arranged in bristle-like structures, a robotic microswarm of iron oxide nanoparticles effectively cleaned plaque from teeth. The nanoparticles have both magnetic and catalytic properties; catalyzed hydrogen peroxide produced free radicals that eliminated ...

A fake job offer took down the world’s most popular crypto game

Hackers duped a senior engineer at Axie Infinity into applying for a job at a fictitious company. Details of how the hack was carried out are being reported for the first time by The Block.

Python 3.11 is 25% faster than 3.10 on average

Contribute to faster-cpython/ideas development by creating an account on GitHub.

Absurd Trolley Problems

O h n o ! A t r o l l e y i s h e a d i n g t o w a r d s 5 p e o p l e . Y o u c a n p u l l t h e l e v e r t o d i v e r t i t t o t h e o t h e r t r a c k , k i l l i n g 1 p e r s o n i n s t e a d .

Scaling our Spreadsheet Engine from Thousands to Billions of Cells

Causal is a spreadsheet built for the 21st century to help people work better with numbers. Behind Causal ’s innocent web UI is a complex calculation engine —an interpreter that executes formulas on an in-memory, multidimensional database. The engine ...

Tell HN: Razorpay a YC company shared donor data without court order

Razorpay is an Indian payment platform[1]. Recently Indian police arrested[2] the co-founder of a fact-checking website for a tweet he did in 2018. There are reports that Government is trying to nab him for reporting the fake news and religious hatred ...

Why isn't the internet more fun and weird? (2019)

By mistake, MySpace inspired a generation of teenagers to learn how to code. From Stealing MySpace: His mistake allowed users to build colorful backgrounds and wallpapers and load them onto their MySpace pages.

How to Improve Your Monolith Before Transitioning to Microservices

Your team decided it ’s time to get rid of that old, clunky monolith (finally!). You had a good run with it, but the monolith has grown so big that you ’re spending more effort maintaining it than adding features. It ’s time to try a different approach. ...

New MacBook Air with M2

Beginning Friday, July 8, at 5 a.m. PDT, the completely redesigned MacBook Air with M2will be available to order, and will start arriving to customers worldwide on Friday, July 15. Supercharged by the M2 chip, the all-new MacBook Air features even ...

Auto manufacturer family tree: Who owns what?

Most people know Lexus is Toyota’s luxury arm and BMW owns Mini, but did you know Lamborghini is owned by Audi, which is run by Volkswagen? Or that, before its eventual demise as a carmaker, Holden started out making saddles?

The Ten Commandments for Detective Fiction (2017)

Ronald Knox (1888-1957) was an English priest who moonlighted as a well-regarded author of detective novels and short stories. His reputation was such that in 1928, during the Golden Era of Detective Fiction, when a group of British mystery authors ...

Did the early medieval era ever take place?

In the fifth century, the Western Roman Empire ‘fell ’. Exactly what that means is a matter of some contention; but while plenty of eminent historians have argued that power simply transferred from a central emperor to locally administered kingdoms, or ...

Aptible (YC S14) is hiring for our secure, compliant PaaS alternative to Heroku

We are a team of infrastructure security experts and platform engineers committed to making it easy to use any cloud infrastructure securely. Learn More About Aptible We ’ve been fully distributed since Employee #1. We have teammates across North America ...

Emacs’s Builtin Elisp Cheat Sheet

Learning Emacs lisp is as much about taming the language as it is the ecosystem of functions and variables that you need to get the job done. The lack of namespaces (notwithstanding shorthands in Emacs 28) and inconsistent naming due to 40+ years ...

FBI Child ID App

You’re shopping at the mall with your children when one of them suddenly disappears. A quick search of the nearby area is unsuccessful. What do you do? Now there’s a free new tool from the FBI that can help.Our Child ID app —the first mobile application ...

Smalltalk Squeak 6.0

,}. - Overall optimizations and stability improvements concerning parsing invalid expressions. System (up to System-eem.1361) - Levels up the command-line interface of Squeak which now supports do-its and a couple of other options. To get started, run ...

GTA GeoGuesser

Copyright Disclaimer under section 107 of the Copyright Act of 1976, allowance is made for “fair use ”for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute ...

Arbitrary Code Execution in Super Mario All-Stars [video]

A more advanced wxErlang Hello World

In the previous post, we saw how to fire a simple message box from iex. In this blog post, we’ll go deeper (not too much!) and present the elements wxFrame, wxButton, and wxTextCtrl.

Welcome to the Subcritical Society (2020)

Then he heard the sand rumbling. Every Fremen knew the sound, could distinguish it immediately from the noises of worms or other desert life. Somewhere beneath him, the pre-spice mass had accumulated enough water and organic matter from the little makers, ...

FDA suspends Juul ban as company appeals

In 2017, Juul catapulted to the top of the e-cigarette market. But the company's valuation has fallen just as quickly, as a series of crises have led to hundreds of lawsuits alleging that the company marketed its products to teens. Photo Illustration: ...

Bun: Fast JavaScript runtime, transpiler, and NPM client written in Zig

Bun is a modern JavaScript runtime like Node or Deno. It was built from scratch to focus on three main things: Bun is designed as a drop-in replacement for your current JavaScript & TypeScript apps or scripts —on your local computer, server or on the ...

Ancient DNA yields surprising findings on earliest seafarers

New genetic research from remote islands in the Pacific offers fresh insights into the ancestry and culture of the world's earliest seafarers, including family structure, social customs, and the ancestral populations of the people living there ...

It’s 1997 and you want to build a website

It’s 1997 and you want to build a website. You have some options. At a baseline, the web is made up of a handful of technologies. In 1997, there was some technical documentation to wade through, but there were only a handful of things to learn to ...

Historical weather data API for machine learning, free for non-commercial

If you compare your home weather station with forecast, you will always notice differences. The temperature is off by a couple of degrees, wind is coming from a different angle or the precipitation sum of the past days could be less than half.

Sourcehut is committed to making IRC better

Internet Relay Chat (IRC) is a wonderful protocol with a 34-year history of helping free software, there at every step alongside the rise of the internet. Many real-time chat empires have risen and fallen during its tenure, some of them leaving behind ...

The Planet Inside: Scientists are probing the secrets of the inner core

Earth ’s magnetic field, nearly as old as the planet itself, protects life from damaging space radiation. But 565 million years ago, the field was sputtering, dropping to 10% of today ’s strength, according to a recent discovery. Then, almost miraculously, ...

GVM: A GPU Virtual Machine for IOMMU-Capable Computers

As of July 6th 2022 the first GVM component (mdev-gpu) is made available as GPLv2.

What is happening with gas prices [former station owner]

I don’t do Twitter, FaceBook, Instagram, or any other social media. The screenshot above came from a news article. In addition, I normally don’t care to write about political issues. But I have to <rant> about this!

The importance of stupidity in scientific research

Martin A. Schwartz; The importance of stupidity in scientific research. J Cell Sci 1 June 2008; 121 (11): 1771. doi: https://doi.org/10.1242/jcs.033340 I recently saw an old friend for the first time in many years. We had been Ph.D. students ...