Collaborate Disseminate
Scientific calculators are an amazing invention that take pocket calculators from being merely basic arithmetic machines to being pocket computers that can handle everything from statistics to algebra. That said, …read more Continue reading The Rise of Fake Casio Scientific Calculators
UNIX version 4 is quite special on account of being the first UNIX to be written in C instead of PDP-11 ASM, but it was also considered to have been …read more Continue reading Only Known Copy of UNIX V4 Recovered From Tape
Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine …read more Continue reading The Birotary Engine Explained
To make aerated concrete, add a foam-forming agent and stir in a significant amount of air. This serves to make the concrete significantly lighter, better insulating, and more resilient to …read more Continue reading Create Aerated Concrete Using Xanthan Gum and Dishwashing Liquid
Every system administrator worth their salt knows that the right way to coax changes to network infrastructure onto a production network is to first validate it on a Staging network: …read more Continue reading Cloudflare’s Outages and Why Cool Kids Test on Prod
At the Houston Museum of Natural Science they recently made a disturbing discovery: their Foucault pendulum had stopped swinging for the first time since its installation in the 1970s. (Video, …read more Continue reading What to do When Your Foucault Pendulum Stops Swinging
Everyone loves a full-wave bridge rectifier, but there’s no denying that they aren’t 100% efficient due to the diode voltage drop. Which isn’t to say that with some effort we …read more Continue reading Active Ideal Full Bridge Rectifier using TEA2208T
Physics simulations using classical mechanics is something that’s fairly easily done on regular consumer hardware, with real-time approximations a common feature in video games. Moving things to the quantum realm …read more Continue reading Simulating Driven-Dissipative Quantum Spin Dynamics on Consumer Hardware
When you think of air conditioners, you tend to think of rather bulky units, with the window-mounted appliances probably among the most compact. There’s however no real minimum size limit …read more Continue reading Mini Battery-Powered Vapor-Compression Air Conditioner
Optical Character Recognition (OCR) forms the bridge between the analog world of paper and the world of machines. The modern-day expectation is that when we point a smartphone camera at …read more Continue reading Retrotechtacular: IBM’s The World of OCR