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2. Laser cutting - Wikipedia

   en.wikipedia.org/wiki/Laser_cutting

   For sheet metal cutting, the focal length is usually 1.5–3 inches (38–76 mm). [7] [8] Advantages of laser cutting over mechanical cutting include easier work holding and reduced contamination of workpiece (since there is no cutting edge which can become contaminated by the material or contaminate the material). Precision may be better since ...

3. Photometry (optics) - Wikipedia

   en.wikipedia.org/wiki/Photometry_(optics)

   Luminous flux per unit solid angle: Luminance: L v: candela per square metre: cd/m 2 (= lm/(sr⋅m 2)) L −2 ⋅J: Luminous flux per unit solid angle per unit projected source area. The candela per square metre is sometimes called the nit. Illuminance: E v: lux (= lumen per square metre) lx (= lm/m 2) L −2 ⋅J: Luminous flux incident on a ...

4. Luminous flux - Wikipedia

   en.wikipedia.org/wiki/Luminous_flux

   Table of comparative luminous flux of several light sources [7] [8] [9] Source Luminous flux (lumens) 37 mW "Superbright" white LED: 0.20 15 mW green laser (532 nm wavelength) 8.4 1 W high-output white LED: 25–120 Kerosene lantern: 100 40 W incandescent lamp at 230 volts: 325 7 W high-output white LED: 450 6 W COB filament LED lamp: 600 18 W ...

5. Foot-lambert - Wikipedia

   en.wikipedia.org/wiki/Foot-lambert

   A foot-lambert or footlambert (fL, sometimes fl or ft-L) is a unit of luminance in United States customary units and some other unit systems. A foot-lambert equals 1/π or 0.3183 candela per square foot , or 3.426 candela per square meter (the corresponding SI unit ).

6. Woman Praised ‘Incredible’ Ex-Husband amid Their Divorce in ...

   www.aol.com/woman-praised-incredible-ex-husband...

   Jennifer and Brandon Sheffield were found dead by gunshot wounds in an apparent murder-suicide by police in Mississippi on Dec. 28, according to reports

7. Damian Williams, Manhattan's top federal prosecutor, to ... - AOL

   www.aol.com/news/damian-williams-manhattans-top...

   NEW YORK (Reuters) -Damian Williams, the top federal prosecutor in Manhattan who secured convictions of high-profile defendants including U.S. Senator Bob Menendez and crypto mogul Sam Bankman ...