a device that produces a narrow and powerful stream of light that has many special uses in medicine, industry, etc.
doctors using a laser to perform delicate eye surgery
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Recent Examples of lasersSatellite communication, especially with lasers, is a more efficient and affordable solution.—Mrigakshi Dixit, Interesting Engineering, 2 Jan. 2025 Airports have tried a host of techniques, such as lasers and cannons, to scare birds and other wildlife away with varying degrees of success.—Jaclyn Diaz, NPR, 31 Dec. 2024 Newly inexpensive lasers are helping turn ore into pure iron for steelmaking using renewable electricity.—Andrew Rosenblum, Popular Science, 26 Dec. 2024 The proprietary set of conditions created by the lasers breaks the bonds between iron and oxygen in the ore without needing carbon or expensive green hydrogen to act like a bouncer that carries the unwanted oxygen away.—Andrew Rosenblum, Popular Science, 26 Dec. 2024 Plane and helicopter pilots reported dozens of incidents of lasers being pointed at them over New York, New Jersey and Pennsylvania in early December.—Michael Wilson, New York Times, 24 Dec. 2024 Residents of New Jersey are pointing lasers at planes during the busiest travel period of the year.—Elizabeth Lopatto, The Verge, 23 Dec. 2024 The 4Pi system played a vital role in the success of the 2022 experiment, where lasers were used to compress fuel and initiate a fusion reaction that produced more energy than was used to start it.—Aman Tripathi, Interesting Engineering, 22 Dec. 2024 Unlike the Sun, which relies on intense gravitational pressure to sustain plasma, fusion reactors use magnetic fields or lasers to stabilize the reaction.—New Atlas, 22 Dec. 2024
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