A web interface where the link target, regardless of type though usually a photo or video, appears in a superimposed, pop over layer often with the original page greyed out to display media without surfing away from the original page. An alternative to a pop up. This feature is popularoften associated with Web 2.0 designs and also called single modal window, lightwindow, or slimbox.
Many photo galleries show enlargened photos in a lightbox.
by richardc020 April 20, 2008
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An emergent theory of space-time in which the speed of the fastest phenomenon is limited by the aggregate amount of the material in the universe, material has no discrete point of origin, and space is infinitely large.

Stipulates that any "fastest" phenomenon in the universe ie. light must have a discrete origin point.

Argues that in contrast to approaching the speed of light requiring all the material in the universe, achieving infinite speed requires no mass at all and would cause linear time to stand completely still.

Posits that the universe moves infinitely fast outside of itself obviating the existence of other universes ie. outside of the universe it is eternally now.
Lightbox argues that there are two obverses but there is only one inverse.
by sandrashine September 16, 2018
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