Joint work with Saul Schleimer. In this short video we show how various models of hyperbolic geometry can be obtained from the hemisphere model via stereographic and orthogonal projection.

2D figure credits: 4:09 Cannon, Floyd, Kenyon, Parry. 0:49, 1:20…

US factories are humming, and manufacturers are scrambling to find workers as the pace of hiring hits levels not seen in decades.

Crash Detection is mistaking rollercoasters for car accidents.

Enjoy the best features of a smart TV without sacrificing your privacy by considering the best dumb TVs.

This photo collection of vintage ads gives a glimpse into how the computer industry developed in the early 1980s.

This post is an attempt to bring together my go-to open-source PDF analysis and processing tools and commands for a variety of common tasks.

Homemade Arduino Due radio with TEA5767 FM module

New discoveries have upended the traditional view of human evolution, changing how we see ourselves today—and how we might imagine our future.

1100 Declassified U.S. Nuclear Targets from 1956 on the interactive NukeMap. Choose a city and a bomb size, and detonate. See what happens.

I scour the internet to find the cheapest books, so you don't have to.

We could be using the InterPlanetary File System, a peer-to-peer file-sharing system that promises to make the Net more efficient

Playfulness and tickling aren’t always considered “serious” subjects, but a new study shows how they can address key questions about the brain.

Run WebAssembly made for outside the browser, inside the browser.

A post-modern modal text editor. Contribute to helix-editor/helix development by creating an account on GitHub.

x86 PC emulator that runs both natively and in the browser, via WebAssembly - nepx/halfix

BTD - Bin To DNN: A DNN Executables Decompiler. Contribute to monkbai/DNN-decompiler development by creating an account on GitHub.

“This study provides clear data that it’s not as simple as saying, ‘Colonoscopy is the most sensitive test, and therefore it is the best.’ It still prevented cancers.”