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The very high strength of the magnetic field may cause projectile effect (or "missile-effect") accidents, where ferromagnetic objects are attracted to the center of the magnet. Pennsylvania reported 27 cases of objects becoming projectiles in the MRI environment between 2004 and 2008. [20] There have been incidents of injury and death.
Terminal ballistics is a sub-field of ballistics concerned with the behavior and effects of a projectile when it hits and transfers its energy to a target. Bullet design (as well as the velocity of impact) largely determines the effectiveness of penetration.
The Kessler syndrome, also known as the Kessler effect, [1] [2] collisional cascading, or ablation cascade, is a scenario proposed by NASA scientists Donald J. Kessler and Burton G. Cour-Palais in 1978.
Ballistics is the field of mechanics concerned with the launching, flight behaviour and impact effects of projectiles, especially weapon munitions such as bullets, unguided bombs, rockets and the like; the science or art of designing and accelerating projectiles so as to achieve a desired performance.
The Sri Lankan military has been accused of bombing the hospital with cluster munitions, but cluster bombs were not used in the bombing of the hospital. [70] The government has denied using cluster munitions, but in 2012 unexploded cluster bombs were found, according to Allan Poston, who was the technical advisor for the UN Development Program ...
The field strength of electromagnetic radiation is measured in volts per meter (V/m). [2] The most common health hazard of radiation is sunburn, which causes between approximately 100,000 and 1 million new skin cancers annually in the United States. [3] [4]
The projectile was developed to provide extended range for standard and developmental howitzers. The projectile has two distinctive preassembled components—the high-explosive warhead and the rocket motor. The warhead is fabricated from high-fragmentation steel for increased effectiveness and contains a bulk-filled explosive. Currently there ...
Another issue that has an effect on the barrel's hold on the bullet is the rifling. When the bullet is fired, it is forced into the rifling, which cuts or " engraves " the surface of the bullet. If the rifling is a constant twist, then the rifling rides in the grooves engraved in the bullet, and everything is secure and sealed.