Spacetime

In physics, spacetime is any mathematical model that combines space and time into a single interwoven continuum. The spacetime of our universe has historically been interpreted from a Euclidean space perspective, which regards space as consisting of three dimensions, and time as consisting of one dimension, the "fourth dimension". By combining space and time into a single manifold called Minkowski space, physicists have significantly simplified a large number of physical theories, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels.

Explanation

In non-relativistic classical mechanics, the use of Euclidean space instead of spacetime is appropriate, because time is treated as universal with a constant rate of passage that is independent of the state of motion of an observer. In relativistic contexts, time cannot be separated from the three dimensions of space, because the observed rate at which time passes for an object depends on the object's velocity relative to the observer and also on the strength of gravitational fields, which can slow the passage of time for an object as seen by an observer outside the field.

Spacetime (disambiguation)

Spacetime is a mathematical model in mathematics and physics. Spacetime, space-time, space time or Space and time may also refer to the following.

Science and mathematics

Computing

Other uses

SpaceTime (software)

SpaceTime (also known as SpaceTime3D) is a 3D graphical user interface that displays web pages in a 3d tabbed stack. The interface is available as online as a flash application, or as a free desktop software download for the Microsoft Windows operating system.

The technology was presented at the 2008 CES tradeshow.

History

Since the inception of the Internet, the process of browsing has been limited and static. Now users can enjoy the richness of the Web with an application that is more interactive, intuitive and fun.

CEO Eddie Bakhash began working on SpaceTime in 1999. The product debuted in beta on June 4, 2007. On the day of the release, the San Jose Mercury News noted that the software was "the most advanced 3-D navigation system I've seen. It doesn't make me dizzy, except with the thoughts of what this could become."

The software's capabilities have been compared to other current browsing and 3D technologies such as in TechCrunch's comment that SpaceTime is "pure eye candy, sort of like Second Life meets Firefox."