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Celebratory gunfire (also called aerial firing or happy fire) is the shooting of a firearm into the air in celebration. It is culturally accepted in parts of the Balkans, the Middle East, the Central Asian region of Afghanistan, the South Asian regions of Pakistan and Northern India as well as Latin American regions. In regions such as Puerto Rico and other areas of the United States it is practiced illegally, especially on holidays like New Year's Eve.〔 Common occasions for celebratory gunfire include New Year's Day as well as the religious holidays Christmas and Eid.〔 The practice may result in random death and injury from stray bullets. Property damage is sometimes another result of celebratory gunfire; shattered windows and damaged roofs are often found after such celebrations.〔 ==Falling-bullet injuries== Bullets fired into the air usually fall back with terminal velocities much lower than their muzzle velocity when they leave the barrel of a firearm. Nevertheless, people can be injured, sometimes fatally, when bullets discharged into the air fall back down to the ground. Bullets fired at angles less than vertical are more dangerous, as the bullet maintains its angular ballistic trajectory, is far less likely to engage in tumbling motion, and so travels at speeds much higher than a bullet in free fall. A study by the U.S. Centers for Disease Control and Prevention (CDC) found that 80% of celebratory gunfire-related injuries are to the head, feet, and shoulders.〔(【引用サイトリンク】title=New Year's Eve Injuries Caused by Celebratory Gunfire --- Puerto Rico, 2003 )〕 In Puerto Rico, about two people die and about 25 more are injured each year from celebratory gunfire on New Year's Eve, the CDC says.〔 Between the years 1985 and 1992, doctors at the King/Drew Medical Center in Los Angeles, California, treated some 118 people for random falling-bullet injuries. Thirty-eight of them died. Firearms expert Julian Hatcher studied falling bullets in the 1920s and calculated that .30 caliber rounds reach terminal velocities of 90 m/s (300 feet per second or 204 miles per hour). A bullet traveling at only 61 m/s (200 feet per second) to 100 m/s (330 feet per second) can penetrate human skin. In 2005, the International Action Network on Small Arms (IANSA) ran education campaigns on the dangers of celebratory gunfire in Serbia and Montenegro.〔(【引用サイトリンク】title=Shooting in the air: turning celebration into tragedy ) 〕 In Serbia, the campaign slogan was "every bullet that is fired up, must come down."〔(【引用サイトリンク】title=Serbs Told To Keep Guns Quiet On New Year's Eve – RADIO FREE EUROPE / RADIO LIBERTY )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Celebratory gunfire」の詳細全文を読む スポンサード リンク
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