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  2. Laser level - Wikipedia

    en.wikipedia.org/wiki/Laser_level

    The concept of a laser level has been around since at least the early 1970s, [2] the original spinning-mirror design laser plane and line level was patented by the late 1980s, [3] and the compact lens-based laser line level (as produced by many tool manufacturers today) was patented in the late 1990s. It was invented by Oscar Soliz in the late ...

  3. Miles in Transit - Wikipedia

    en.wikipedia.org/wiki/Miles_In_Transit

    Miles in Transit videos often approach public transit from a comedic perspective, featuring analysis of underutilized services and absurd journeys interspersed with running gags and original music. [11] Some of Taylor's videos cover intercity transit, including Amtrak, Greyhound, and other intercity bus services.

  4. Theodolite - Wikipedia

    en.wikipedia.org/wiki/Theodolite

    The term transit theodolite, or transit for short, refers to a type of theodolite where the telescope is short enough to rotate in a full circle on its horizontal axis as well as around its vertical axis. It features a vertical circle which is graduated through the full 360 degrees and a telescope that could "flip over" ("transit the scope").

  5. Level (optical instrument) - Wikipedia

    en.wikipedia.org/wiki/Level_(optical_instrument)

    The Y level or wye level is the oldest and bulkiest of the older style optical instruments. A low-powered telescope is placed in a pair of clamp mounts, and the instrument then leveled using a spirit level, which is mounted parallel to the main telescope. The term dumpy level (also builder's level) endures despite the evolution in design. They ...

  6. Laser line level - Wikipedia

    en.wikipedia.org/wiki/Laser_line_level

    A laser line level is a tool combining a spirit level and/or plumb bob with a laser to display an accurately horizontal or vertical illuminated line on a surface the laser line level is laid against. Laser line levels are used wherever accurate verticals and horizontals are required, typically in the construction and cabinetry industries. Some ...

  7. List of retronyms - Wikipedia

    en.wikipedia.org/wiki/List_of_retronyms

    But when more features were added to source ports for better level atmospheres, older-style levels started to be called "1994 levels" to differentiate from the newer kind. 2D With the increasing prevalence of 3-D movies, conventional, non-stereoscopic versions of movies are starting to be called 2D versions. This is also used in reference to ...

  8. Passenger rail terminology - Wikipedia

    en.wikipedia.org/wiki/Passenger_rail_terminology

    A light rail transit (LRT) system is an urban rail transit system with a "light" passenger capacity compared to heavy rail and metro systems. Its operating characteristics are that it uses railcars , called light rail vehicles (LRVs), operating singly or in short multiple unit trains on fixed rails in a right-of-way that is not necessarily ...

  9. Telecine - Wikipedia

    en.wikipedia.org/wiki/Telecine

    The most complex part of telecine is the synchronization of the mechanical film motion and the electronic video signal. Every time the video (tele) part of the telecine samples the light electronically, the film (cine) part of the telecine must have a frame in perfect registration and ready to photograph.