Rave is a multimedia messenger app like no other. Watch a movie, binge a TV series, listen to music, or even have a karaoke party with your friends - all in one place. The video and audio are in perfect sync down to the millisecond, so you react and laugh with your friends in real time. You can join public raves and meet new people from all over the world, or start your own rave and send the invite to your closest friends and family.

Everything is better when it’s enjoyed together, and now, more than ever, it’s difficult to get together in person. Millions of people around the world are using Rave to stay connected while social distancing during the pandemic. Even if we can’t be together in-person right now, we can still watch together on Rave. ❤️

The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit.

FlightGear's flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark to judge new simulation code to the standards of the space industry. FlightGear is used professionally for research and development, as well as non-professionally.

Screenshots: link

Information: https://en.wikipedia.org/wiki/FlightGear https://www.flightgear.org/category/tours/ https://www.flightsim.com/vbfs/tags.php?tag=flightgear (multi-page articles) FlightGear wiki

As of 2020 there are over 700 aircraft and spacecraft projects available with 1 click download and install from the sim's launcher, more are available at 3rd party hangars and github repositories for different craft projects.

FlightGear 2020.3.8 and later has automatically downloaded 3d models of buildings, roads, cities etc. , based on Open StreetMap (OSM) data and automatic generation, for the whole world.

Platforms: Windows, macOS, Linux, Raspberry Pi, other OSes