Someone made a 'camera' that can shoot at two billion frames per second

Brian Haidet, a scientist creating videos on YouTube under the handle AlphaPhoenix, showed off a camera in a new video that can capture footage of a laser pointer at the speed of light. The camera is an update on a previous design that could capture footage at one billion frames per second, but it comes with a major caveat: it can only shoot one pixel at a time.

Haidet's camera is made from a gimbal-mounted mirror, two tubes, a simple lens, a light sensor and some Python code to tie it all together. Pointed at a laser pointer, the camera's able to capture a beam of light at two billion frames per second, showing it smoothly travel...