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

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

    The Box-1G is ready to tackle all the same scenarios that other cross-beam lasers are, with the added advantaged that come with 510nm “Green” laser. As well as the self-leveling pendulum ...

  3. 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 ...

  4. 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 ...

  5. M1156 Precision Guidance Kit - Wikipedia

    en.wikipedia.org/wiki/M1156_Precision_Guidance_Kit

    In 2021, the U.S. Army plans to produce the upgraded M1156E2/A1, compatible with newer XM1128 high explosive and XM1113 rocket-assisted projectiles to achieve 10 m (33 ft) accuracy at 30 and 40 km (19 and 25 mi) respectively when fired from a 39-caliber barrel.

  6. Levelling - Wikipedia

    en.wikipedia.org/wiki/Levelling

    Turning is a term used when referring to moving the level to take an elevation shot from a different location. To "turn" the level, one must first take a reading and record the elevation of the point the rod is located on. While the rod is being kept in exactly the same location, the level is moved to a new location where the rod is still visible.

  7. Crowd crush kills 35 children at funfair in Nigeria, police say

    www.aol.com/crowd-crush-kills-35-children...

    At least 35 children were killed and six others critically injured in a crowd crush at a funfair in the Nigerian city of Ibadan on Wednesday, police said.

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