The #1 marketplace for SF startups to swap dollars and book it as ARR. Series A in 30 days. No customers required.

Video stabilization using gyroscope data. Contribute to gyroflow/gyroflow development by creating an account on GitHub.

States are awarding more than $5.6 billion annually to data center developers, and that’s a conservative estimate.

Be the most productive engineer on your team 🚀🚀🚀. Contribute to dtnewman/burn-baby-burn development by creating an account on GitHub.

I love quasicrystals—like crystals, but with patterns that never repeat, like Penrose tiles. But they’ve very rare in nature. They’re created only by the most exotic and violent e…

Windows CE 2.11 for N64! Contribute to ThroatyMumbo/WinCE64 development by creating an account on GitHub.

From FPGA Gates to Scientific Calculator. Contribute to gdevic/FPGA-Calculator development by creating an account on GitHub.

Britain's civil liberties are eroding one deployment at a time.

How TTI and Stanley Black & Decker took the same playbook in opposite directions. One invested $206M in R&D and grew to 4,000 workers. The other is $6 billion in debt and closing its hometown factory.

Writing at the end of the world, from Hveragerði, Iceland

A modular, compile-checked tutorial for learning category-theory ideas through a tiny Rust ML pipeline.

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This document establishes a policy for how LLMs can be used when contributing to rust-lang/rust. Subtrees, submodules, and dependencies from crates.io are not in scope...

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Because no one should manage diabetes alone 💙. Contribute to GlycemicGPT/GlycemicGPT development by creating an account on GitHub.

A bit more than a year ago, we did something a bit weird. We took a few cans of spray paint and we went out on the street. Not to pain...

A social travel app for explorers. Walking routes, real-time navigation, and tips from travelers who've actually been there.

Ranking battles between industries to determine which are the worst. Vote now.

OpenAI did this with your health data in January. Now it wants your financial data too. The company announced today that ChatGPT users can connect their bank accounts through Plaid, the financial bridging platform used by 12,000 institutions including Chase, Fidelity, Capital One, and Schwab. Once connected, ChatGPT gets a full view of your balances, transaction history, active subscriptions, investment portfolio, and liabilities like mortgages and credit card debt. In return you get a spending dashboard, personalized financial advice, and a chatbot that can flag unusual changes in your habits. It's launching in preview for Pro subscribers at $200 a month. OpenAI says Plus and eventually everyone else comes later.

When two rusty iron balls—one wrapped in aluminum foil—are struck together, sparks and light are given off in this small scale thermite reaction. Video of Microscope Thermite Reaction can be found at https://www.youtube.com/watch?v=V5VXt0hZOc8 What it Shows This is a much safer, microscale version of the thermite reaction—very fun and easy to perform! The classic thermite reaction is a spectacular oxidation-reduction reaction that takes place when aluminum metal is reacted with rust, Fe2O3. 2Al(s) + Fe2O3(s) → Al2O3(s) + 2Fe(s) + heat In this version, two rusty iron balls, approximately 2 kg each and 7 cm in diameter, are struck together with a glancing blow. The mechanical energy of the balls colliding provides enough activation energy to allow the reaction to occur, resulting in the formation of the products and large amounts of heat. There is a loud noise and flying sparks that occur due to the large amount of thermal energy released in the reaction. How it Works The classic thermite reaction is an energetic oxidation-reduction reaction where aluminum is oxidized and iron is reduced, according to the equation above. This highly exothermic single replacement reaction is so energetic that it is used to weld railroad tracks together. Variations of the reaction are also used in underwater welding. Once the reaction starts, it is self-sustaining and does not depend on an external supply of oxygen. A video of the large scale version can be viewed here. The heat of reaction is ΔH° = -849 kJ/mol, resulting in a reaction temperature of approximately 2200 °C. This is hot enough to melt the iron produced, which has a melting point of 1530 °C. The bright yellow sparks result from microscopic amounts of extremely hot molten iron being thrown out into the air. The molten iron immediately oxidizes with the oxygen in the air, producing additional energy. The yellow color of the sparks is caused by the emission of light following the excitation of electrons in iron atoms. There is also a loud cracking sound when the reaction takes place that is not just the sound of the impact. Setting it Up Safety Wear safety goggles. A lab coat is recommended, as the sparks can travel 2 - 3 feet. Gloves are optional, but can be worn to prevent getting rust on your hands. Practice striking the balls, as it requires a hard glancing blow. Hold the balls tightly and make sure to keep your fingers out of the way when striking the balls together. It is recommended that only the instructor perform this demonstration. Repeated striking can cause arm and shoulder pain! Demonstrating it 1. Check the aluminum foil. Replace it if there are too many holes. Use a single layer of regular thickness aluminum foil.2. Place the rusty ball in one hand and the foil covered ball in the other. Usually the rusty ball is held in the dominant hand.3. Keeping your fingers out of the way, strike down on the foil covered ball with the rusty ball. Use a hard glancing blow. When the balls are struck with enough force, there will be a loud crack and sparks that fly out.4. Rotate the rusted ball and the foil covered ball to expose fresh surfaces and repeat the procedure. With practice, you will be able to repeat some nice big sparks. Cleanup and Disposal The iron balls can be repeatedly reused. If you ever get tired of them, they can be thrown in the trash. Comments Any sort of steel/iron ball can be rusted for this demo. Depending on the size of the balls, it may be easier or harder to handle them. If the rust is all removed from the reaction, place the balls in salt water several days and let air dry to restore the rust. If an oxide coating is present, use emery cloth or a scouring pad to remove the oxide. One extension is to place a piece of paper between the ball and hit the balls together to burn holes in the paper. A dark spot and hole will appear. References This reaction was first performed by Larry Peck from Texas A&M University, at the 16th BCCE in 2000. Slater, A. (2016) Smashing Thermit Reaction. Flinn Scientific ChemFax. https://www.flinnsci.com/api/library/Download/e1dc013804de4cd98379eadeea372db2University of Nottingham, School of Chemistry, Periodic Videos. (2010, April 10). Iron - Periodic Table of Videos [Video]. YouTube. https://youtu.be/euQUgp5AY-Y?si=XueWUV2EgvGoDr8M

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sx is a package manager for AI coding assistants. Contribute to sleuth-io/sx development by creating an account on GitHub.