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2. The best laser levels for DIY and construction in 2022 - AOL

   www.aol.com/news/best-laser-levels-diy...

   Line everything up perfectly, with the best laser levels available today. ... The best laser levels for DIY and construction in 2022. Adam Juniper. October 17, 2022 at 3:56 PM.

3. Laser level - Wikipedia

   en.wikipedia.org/wiki/Laser_level

   Laser level. A rotary laser level set up and used to level sand fill in trenches. The graduated staff is leaning on the pile of sand. In surveying and construction, the laser level is a control tool consisting of a rotating laser beam projector that can be affixed to a tripod. The tool is leveled according to the accuracy of the device and ...

4. The 7 Best Laser Levels of 2023, Tested and Reviewed - AOL

   www.aol.com/lifestyle/7-best-laser-levels-2023...

   Hychika Green Laser Level: Another fairly inexpensive option, this laser level wins points for its “very crisp and easy to see” green lines and serious durability, according to our tester ...

5. Laser pointer - Wikipedia

   en.wikipedia.org/wiki/Laser_pointer

   A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot. The small width of the beam and the low power of typical laser pointers make the beam itself invisible in a ...

6. Laser - Wikipedia

   en.wikipedia.org/wiki/Laser

   The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation. [1] [2] The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow.

7. Level (optical instrument) - Wikipedia

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

   A level is an optical instrument used to establish or verify points in the same horizontal plane in a process known as levelling. It is used in conjunction with a levelling staff to establish the relative height or levels (the vertical separation) of objects or marks. It is widely used in surveying and construction to measure height differences ...