The sea ice changed completely over the course of a few hours, from disconnected floes to a vast, snow-covered plain. By Raymond Zhong Most of the reserves in the country are extra-heavy oil that’s ...

Excalidraw changed that for me. It's a free, browser-based diagramming tool with a hand-drawn, whiteboard-style aesthetic. It doesn't require you to sign up, no software to install, and the minimal ...