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FN Five-seven muzzle flash Muzzle flash of an Israeli Merkava IIId Baz tank IMI 120 mm gun Muzzle flash is the light — both visible and infrared — created by a muzzle blast , which is caused by the sudden release and expansion of high-temperature, high-pressure gases from the muzzle of a firearm during shooting .
Fires in Pennsylvania (1 C, 11 P) N. Natural disasters in Pennsylvania (3 C, 25 P) S. School shootings in Pennsylvania (6 P) September 11 attacks (14 C, 93 P) T.
3 locations in western Pennsylvania: April 28, 2000: 5: Racially-motivated murder spree. 2000 Wilkinsburg shooting: Wilkinsburg: March 1, 2000: 3: Single gunman kills three people. 1998 Parker Middle School dance shooting: Edinboro: April 24, 1998: 1: Teenaged shooter killed a teacher. Murder of Mario Riccobene: Philadelphia: January 28, 1993: ...
Map shows rising wildfire threat across the U.S.: ... As thousands of people fled from fires that tore through Los Angeles County this month, you may have wondered about the wildfire risk in your ...
PHOTO: Police are on the scene of an incident at UPMC Memorial Hospital, Feb. 22, 2025, in York, Pa. (Harrison Jones/York Daily Record via USA Today Network via Imagn Images)
Flash fires may occur in environments where fuel, typically flammable gas or dust, is mixed with air in concentrations suitable for combustion. In a flash fire, the flame spreads at subsonic velocity, so the overpressure damage is usually negligible and the bulk of the damage comes from the thermal radiation and secondary fires.
Radar is the most recently developed means of locating hostile artillery. The emergence of indirect fire in World War I saw the development of sound ranging, flash spotting and aerial reconnaissance, both visual and photographic. Radars, like sound ranging and flash spotting, require hostile guns, etc., to fire before they can be located.
On one occasion, a Pennsylvania state trooper was killed when another trooper’s Sig Sauer pistol fired without him touching the trigger during a safety training in 2015, the complaint states.