How does fog form?

Fog forms when the air cools and water vapor condenses. Source: https://earthsky.org/earth/what-is-fog-how-does-fog-form…

Hologram-Like Device Animates Objects Using Ultrasound Waves

An anonymous reader quotes a report from The Guardian: Researchers in Southampton have built a device that displays 3D animated objects that can talk and interact with onlookers. A demonstration of the display showed a butterfly flapping its wings, a countdown spelled out by numbers hanging in the air, and a rotating, multicolored planet Earth. Beyond interactive digital signs and animations,…

Carrie Fisher Was Originally Going To Be ‘The Last Jedi’ In the Final Star Wars Movie

Luke Skywalker wasn’t going to be the only Jedi in the final Star Wars movie, reports Yahoo Entertainment:
In the original version of the ninth and final installment, The Rise of Skywalker, his sister, Leia (played by Carrie Fisher), was going to emerge as a full-fledged Jedi warrior, complete with her very own lightsaber. That’s according to no less an authority than…