gradients

MinutePhysics explains that computers store brightness nonlinearly, so blurring and blending colors in raw RGB gives wrong, dark results. It shows why mixed colors, such as in gradients, look off.

A two-hour driver's-eye cab ride along the Bernina railway from St. Moritz in Switzerland to Tirano in Italy. The UNESCO-listed line crosses the Alps at high altitude with steep adhesion gradients.

PBS Space Time explores whether time causes gravity, explaining that gravity does not truly warp the flow of time but arises from time gradients. It revisits how gravitational time dilation works in general relativity.

A GoPro-recorded flight of an RC glider setting a 548 mph dynamic soaring speed record at Parker Mountain, California, using only wind gradients.