Ballistics

modern firearms are rifled with the exception of the shotgun. The process of rifling the barrel creates unique patterns. These patterns are called tool mark impressions. The forensic technique of analyzing the impressions left on the bullet is call ballistic fingerprinting. There are two types of strations, class characteristics and individual characteristics. Class characteristics are shared by on type of gun and manufacture, for example a colt peacemaker has 6 lands and grooves left-hand…

Second, we further studied the continuous rotation dynamics of NP-dimers with increasing asymmetries, and observed a full transition picture from the conventional diffusive to superdiffusive rotation, and further to ballistic rotation. Because a better statistic is needed for revealing this transition picture, we performed the following experiments in the continuous e-beam imaging mode where each experiment could contain hundreds to thousands of data points. Presented in Fig. 4A are the typical…

find out the events that took place when a crime scene occurred to get clear details concerning the crime scene (Cole 264). Some of these new technologies include the Laser Ablation Inductively Coupled Plasma Mass Spectrometry machine, High-Speed Ballistic photography machine, and the Video spectral comparator, which drastically impact crime scene investigations and opens more doors when investigating a scene. Laser Ablation Inductively Coupled Plasma Mass Spectrometry machine (LA-ICP-MS).…

military helmets and made with Kevlar fabric which is extremely lightweight giving maximum comfort as well as reduce fatigue for soldiers in the field.Despite its lightweight, Kevlar is five times stronger than steel offering maximum protection against ballistic projectiles. Kevlar is flame resistant and provides thermal protection when exposed to fire. Mass Transportation These remarkable characteristics of Kevlar ensure manufacturers to build quality, lightweight and more durable modes of…

Two factors primarily contribute to a cartridge’s long-range ability: ballistic coefficient, which is the projectile's ability to resist being tossed around by the wind, and velocity, the actual speed of the bullet. The .22lr has a ballistic coefficient of around .14 and a velocity of 1,260 fps, which makes it very susceptible to wind drift and the force of gravity. At this rate, a .22lr bullet will drop…

Built around an aircraft carrier and its air wing, the CSG also includes 2-5 other ships. Usually at least two are destroyers or cruisers, which provide air and ballistic missile defense for the CSG, conduct long-range strike using cruise missiles, and perform anti-submarine warfare. A fleet supply ship provides logistical support. In addition, CSGs often include an attack submarine designed to destroy hostile surface…

forensic science. He started out a boy with a passion for firearms and then became an Army man where he would hold several jobs in the medical field. Put those together and you end up with a forensic specialist who had a large impact on forensic ballistics. Keywords: Goddard, firearms, comparison microscope Calvin Goddard’s Contributions to Forensic…

countries in the world, U.S. State Departments estimate it spends roughly a quarter of its GDP on its military (Albert). Obviously, a portion of this spending is allocated to the development of nuclear weapons and ballistic missiles. North Korea began to produce Nodong medium range ballistic missiles with the assistance of Iran in the early 1990s (Moniz). Another indicator for North Korea's military development were the…

China has developed and produced a sea-based nuclear deterrence in the form of a JL-2 submarine –launched ballistic missile (SLBM) that will be deployed on the Type-094 Jin-class nuclear-powered ballistic missile submarine during year 2000s. The primary purpose of ballistic missile submarine is nuclear deterrence and they uphold the threat of a second strike from United States as China experiences threatened with the use of nuclear weapons…

The missile scare was a 13 day confrontation on October 16 through 28, 1962 when the United States and the Soviet Union concerning American ballistic missile deployment in Italy and Turkey with Soviet Union missile deployment in Cuba. The Crisis is recognized as the closet the Cold War was to becoming a nuclear war. As a response to the attempted Bay of Pigs Invasion in 1961 and the holding of American missiles in Italy and Turkey Nikita Khrushchev, the Soviet Union leader, made an agreement…