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This schlieren image of a bullet travelling in free-flight demonstrates the air-pressure dynamics surrounding the bullet. External ballistics or exterior ballistics is the part of ballistics that deals with the behavior of a projectile in flight. The projectile may be powered or un-powered, guided or unguided, spin or fin stabilized, flying ...
For instance, powering a lightsaber with an electric field strength of 10 15 V/m for one minute requires 10 25 J, or ten times less than the total energy output of the Sun in one second. [33] If the energy source is nuclear fusion, such a lightsaber would require 10 11 kg of nuclear fusion fuel to operate for one minute. [33]
Ballistics can be studied using high-speed photography or high-speed cameras. A photo of a Smith & Wesson revolver firing, taken with an ultra high speed air-gap flash. Using this sub-microsecond flash, the bullet can be imaged without motion blur. Ballistics is often broken down into the following four categories: [23]
Practical solutions of a ballistics problem often require considerations of air resistance, cross winds, target motion, acceleration due to gravity varying with height, and in such problems as launching a rocket from one point on the Earth to another, the horizon's distance vs curvature R of the Earth (its local speed of rotation () = ()).
The worst case is a muzzle or muzzle device such as a flash-hider that is cut at a non-square angle, so that one side of the bullet leaves the barrel early; this will cause the gas to escape in an asymmetric pattern, and will push the bullet away from that side, causing shots to form a "string", where the shots cluster along a line rather than ...
A menacing asteroid named Apophis is projected to have a close encounter with Earth in 2029, but scientists have long ruled it out as an impact risk. Asteroids safely fly by Earth all the time ...
The Lightsaber (Star Wars) - an energy sword powered by a rare Force-attuned crystal (also known as Kyber Crystal), which can only be used to its full potential by those skilled enough in the Force to wield it. Each lightsaber is constructed by its wielder as a rite of passage, making each one of them unique.
“Southwest Airlines Flight 2494 was set to depart for Indianapolis when a bullet apparently struck the right side of the plane, just below the flight deck, as the crew was preparing for takeoff ...
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