Back pain is also common with increased cell phone use, especially if you hold the phone between your neck and shoulders as you multitask. Long periods of cell phone use cause you to arch your neck and hold your body in a strange posture. This can lead to back pain, says Healthcentral.com.
A recoilless rifle (RCLR) or recoilless gun is a type of lightweight tube artillery that is designed to allow some of the propellant gases to escape out the rear of the weapon at the moment of ignition, creating forward thrust that counteracts some of the weapon's recoil.lder recoilless rifles are still used by the U.S. National Park Service and the U.S. Forest Service as a system for avalanche control. The Washington State Department of Transportation uses a 105 mm recoilless rifle for avalanche control on Interstate 90.
List of recoilless rifles. This is a list of recoilless rifles (RCL) intended to catalogue these lightweight infantry support weapons that allow the firing of a heavier projectile than would be practical with a recoiling artillery guns.Technically, only devices that use a rifled barrel are recoilless rifles.his distinction is often lost, and both are often called recoilless rifles. Normally used for anti-tank roles, the first effective system of this kind was developed during World War II to provide infantry with light, cheap and easily deployable weapon that does not require extensive training in gunnery.