Watch people whiz down this steep Swiss alpine slide

On the toboggan run (rodelbahn) overlooking Oeschinen Lake near Kandersteg, Switzerland, some people go in summer for the breathtaking view. Others go for the speedy thrill. Either way it looks like fun! https://youtu.be/BB9dC5CqX9g https://youtu.be/BnMN1FBivV0 https://youtu.be/BntL8UbN9dI https://youtu.be/OVcwcvwzRPs Source: Boing Boing (published under a Creative Commons license)

Puzzle: Which one will fill first?

Which squares fill first with fluid?   THE FLOW... Created by Imgurian CorneliaXaos: So.. this was, like... 3+ hours to make.. It's 1269 frames long... and was a "joy" to animate by hand... next time I write a program to do this for me.... the physics.. they're not super-correct for actual fluids.. I ignore air…

Circumventing machine-gun controls with a robotic glove that automates faster-than-human trigger-pulls

Since 1934, the National Firearms Act has limited ownership of "any weapon which shoots, is designed to shoot, or can be readily restored to shoot, automatically more than one shot, without manual reloading, by a single function of the trigger" (AKA, "machine guns"), but with the AutoGlove, a kind of exoskeletal automation system for your…