- Atari 2600: Missile Command (Internet Archive)
Aliens from the planet of Krytol have begun an attack on the planet Zardon. The Krytolians are warriors out to destroy and seize the planet of Zardon. Zardon is the last of the peaceful planets. The Zardonians are skillful and hardworking people. Their cities are built-up and rich in resources. It is truly a planet void of crime and violence.
- Spacetime (Wikipedia)
In physics, spacetime is a mathematical model that combines the three dimensions of space and one dimension of time into a single four-dimensional manifold. Spacetime diagrams can be used to visualize relativistic effects, such as why different observers perceive differently where and when events occur.
