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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. List of films released in IMAX - Wikipedia

    en.wikipedia.org/wiki/List_of_films_released_in_IMAX

    Some shots filmed in 35mm and converted to 3D. First mainstream feature to be partially shot with digital IMAX 3D cameras with 95 minutes of IMAX 3D footage. Aspect ratio alternates between 2.39:1, 2.00:1, and 1.90:1. The longest IMAX 3D movie ever filmed. [243] [244] Hercules: 25 July 2014 ** In 3D (conversion). Limited engagement. [245] Lucy ...

  4. Yellow Line (CTA) - Wikipedia

    en.wikipedia.org/wiki/Yellow_Line_(CTA)

    The Yellow Line, also known as the Skokie Swift, is a branch of the Chicago "L" train system in Chicago, Illinois.The 4.7-mile (7.6 km) route runs from the Howard Terminal on the north side of Chicago, through the southern part of Evanston and to the Dempster Terminal in Skokie, Illinois, making one intermediate stop at Oakton Street in downtown Skokie.

  5. List of driverless train systems - Wikipedia

    en.wikipedia.org/wiki/List_of_driverless_train...

    This is a list of driverless train systems, which are capable of GoA3 and GoA4 (GoA3+) according to the Grade of Automation classifications specified by the standard IEC 62290‐1. These are explained diagrammatically by the UITP.

  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. Laser lighting display - Wikipedia

    en.wikipedia.org/wiki/Laser_lighting_display

    Laser light shows fully emerged in the early 1970s and became a form of psychedelic entertainment, usually accompanied with a live musical performance on stage or pre-recorded music. The Who , Pink Floyd , Led Zeppelin , Genesis , and Electric Light Orchestra were among the first high-profile rock acts to use lasers in their concert shows in ...