How dangerous is celebratory gunfire?

Bullets fired

always come down - often with fatal results - for journalists in war are wise to wear a helmet, even in a friendly crowd

Undoubtedly, war correspondents are wise to wear helmets and bulletproof vests, while sending mails in the shell-hit the streets with crazy weapons.

But when Sky News reporter Alex Crawford came to Tripoli this week in a rebel truck, which was more concerned about the firing of celebration - because of the danger posed by the landing of the ball on the head

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While some initial studies conjecture that the bullets fired up, just disappeared into space, the threat of explosive devices that falls will not be learned.

To explore the finer details of the rule that what goes up must come down, Benjamin Robins in 1761 indicated that a large caliber bullet fired up, returned to Earth three-quarters of a mile away and half a minute later. More detailed studies followed.

In the fall of 1910, an RL Tippins Maxim gun which led to a tide of mud of the River Stour in Suffolk and fired two volleys of bullets around 30 in the air.

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With stopwatch in hand, waiting time balls falling to Earth, the recording of flight time of about 55 seconds.

The conclusion of these experiments was that the bullets hit 2,750 meters (9,000 feet), taking 19 seconds to install and almost twice as long - 36 seconds -. A fall

Recalling the experience, Tippins said. "We did not have headgear, but confidence that the wind will be enough for us lack"

But what we know today the risk of injury from falling bullets?

• Between 1985 and 1992, a group of doctors at the center of Martin Luther King / Drew Medical in Los Angeles, has studied victims of gunshot wounds and identified 118 were hit by bullets falling. These included people hit by bullets while riding his daily activities away from the shooting known.
• Only six regular bullets were found by police to the shootings that took place a mile away. But some people were affected by high velocity projectiles whose source was never found.
For those who are hit by bullets that fall, the possibility that the fatal injury was much higher than typical of a shooting. The hospital began the shooting death of regular 2% to 6%, while for those affected by the bullets mortality rate was lower by about a third.

The reason is simple - the misfortune of being beaten by lower deposits were more likely to be beaten in the head, and while slowly moving balls after being shot in the sky, were still able to break the skull.

Doctors said a bullet came down to Earth with a speed between 90 and 180 meters per second. A ball moving at less than 60 meters per second can cause serious injury to the head, they said.

The danger posed by celebratory gunfire led the Los Angeles City Council to prohibit the firing of bullets into the air in 1989. Later, sales of balls in the period before New Year's Eve were banned.

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