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2. Columbus, Ohio - Wikipedia

   en.wikipedia.org/wiki/Columbus,_Ohio

   Columbus (/ k ə ˈ l ʌ m b ə s /, kə-LUM-bəs) is the capital and most populous city of the U.S. state of Ohio.With a 2020 census population of 905,748, it is the 14th-most populous city in the U.S., the second-most populous city in the Midwest after Chicago, and the third-most populous U.S. state capital after Phoenix, Arizona and Austin, Texas.

3. Carbon-dioxide laser - Wikipedia

   en.wikipedia.org/wiki/Carbon-dioxide_laser

   The carbon-dioxide laser ( CO2 laser) was one of the earliest gas lasers to be developed. It was invented by Kumar Patel of Bell Labs in 1964 [1] and is still one of the most useful types of laser. Carbon-dioxide lasers are the highest-power continuous-wave lasers that are currently available. They are also quite efficient: the ratio of output ...

4. Saint Charles Preparatory School - Wikipedia

   en.wikipedia.org/wiki/Saint_Charles_Preparatory...

   www .stcharlesprep .org. Saint Charles Preparatory School is a four-year Catholic college preparatory school in Columbus, Ohio, US. It was founded in 1923 by the fourth bishop of Columbus, James J. Hartley, as a Roman Catholic college and high school seminary. [4] Today, it is an all-male high school serving the Catholic Diocese of Columbus .

5. Solid-state laser - Wikipedia

   en.wikipedia.org/wiki/Solid-state_laser

   Laser rods (from left to right): Ruby, alexandrite, Er:YAG, Nd:YAG. A solid-state laser is a laser that uses a gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. [1] Semiconductor -based lasers are also in the solid state, but are generally considered as a separate class from solid-state lasers, called ...

6. Titanium-sapphire laser - Wikipedia

   en.wikipedia.org/wiki/Titanium-sapphire_laser

   Titanium-sapphire lasers (also known as Ti:sapphire lasers, Ti:Al 2 O 3 lasers or Ti:sapphs) are tunable lasers which emit red and near-infrared light in the range from 650 to 1100 nanometers. These lasers are mainly used in scientific research because of their tunability and their ability to generate ultrashort pulses thanks to its broad light ...

7. Newport Music Hall - Wikipedia

   en.wikipedia.org/wiki/Newport_Music_Hall

   Current use. Live music venue. Opened. 21 December 1921. ( 1921-12-21) Website. Official website. Newport Music Hall is a music venue located in the University District of Columbus, Ohio, across the street from the Ohio Union of the Ohio State University. It is "America's Longest Continually Running Rock Club".