Seven Days (also written as 7 Days) is a science fiction television series based on the premise of time travel. It was produced by UPN from 1998 to 2001. The television channel Spike syndicated all of the episodes from 2003 to 2005. == Production == Three seasons of Seven Days were produced. All three seasons have been shown in North America, while the BBC broadcast the first season in the United Kingdom. There are currently no plans to release the entire series on DVD and/or Blu-ray from Paramount Home Entertainment and CBS Home Entertainment. == Synopsis == The plot follows a secret branch of...

The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is the radius of a sphere such that, if all the mass of an object were to be compressed within that sphere, the escape speed from the surface of the sphere would equal the speed of light. An example of an object smaller than its Schwarzschild radius is a black hole. Once a stellar remnant collapses below this radius, light cannot escape and the object is no longer directly visible. It is a characteristic radius associated with every quantity of mass. The Schwarzschild radius was named after the German astronomer...

Tuvok /ˈtuːvɒk/ is one of the main characters on the television series Star Trek: Voyager. Tuvok is one of the fictional Vulcan species who serves as the ship's Chief of Security and Chief Tactical Officer. Tim Russ portrayed Tuvok throughout the show's run, from 1995 to 2001. == Overview == In the episode "Unimatrix Zero", the Tuvok character states that he was born on stardate 38774 (equivalent to the year 2264) on Vulcanis, a lunar colony belonging to the Vulcan people. As a teenager, portrayed in flashback sequences during "Gravity" by LeRoy D. Brazile, Tuvok is revealed to have fallen in love...