Machine Guns
Introduction
To understand how machine guns work, it helps to know something about firearms in general. Almost any gun is based on one simple concept: You apply explosive pressure behind a projectile to launch it down a barrel. The earliest, and simplest, application of this idea is the cannon.
A cannon is just a metal tube with a closed end and an open end. The closed end has a small fuse hole. To load the cannon, gunpowder (a mixture of charcoal, sulphur and potassium nitrate) is poure ....etc

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Iam sravya.I want ppt for laser guided missiles.Please sent for my mail [email protected] ....etc

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LASER GUIDED MISSILES


abstract

Laser guidance is a technique of guiding a missile or other projectile or vehicle to a target by means of a laser beam. Some laser guided systems utilize beam riding guidance, but most operate more similarly to semi-active radar homing (SARH). This technique is sometimes called SALH, for Semi-Active Laser Homing. With this technique, a laser is kept pointed at the target and the laser radiation bounces off the target and is scattered in all directions (this is known as “painting the target� ....etc

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PRESENTED BY
A.KRISHNA REDDY


Effect of Various Geometric Parameters of The Multiliner Assembly on Explosively Formed Projectile
INTRODUCTION
Types of Missiles
Ballistic Missiles - Follows a sub-orbital ballistic flight path to a predetermined target. Used mainly for land attack missions.
Anti Ballistic Missiles – Designed to counter Ballistic Missiles.
The Missile
INTRODUCTION TO WARHEAD
 The term warhead refers to the explosive material and detonator that is delivered by a miss ....etc

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INTRODUCTION
Since the conventional solid gun propellants have reached the saturation level in terms of energy output, a need exists for the development of high performance propellants for futuristic gun ammunition to propel hypervelocity projectiles. Hypervelocity guns are the guns having muzzle velocity in excess of 2000 m/s. Modern tank guns have muzzle velocity in the range of 1600 “ 2000 m/s. With continuous improvement in armour technology, improved weapons with high muzzle velocity are under ....etc

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ABSTRACT
A firearm is a weapon which projects either single or multiple projectiles at high velocity through rapid, confined burning of a propellant. This process of rapid burning is technically known as deflagration. In older firearms, the propellant was typically black powder or cordite, but modern firearms use smokeless powder or other propellants. Most modern firearms (with the notable exception of smoothbore firearms) have rifled barrels to impart spin to the projectile for improved flight stability.
Hand-held ....etc

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SCRAMJET
SEMINAR REPORT
BY
HARISHANKER
DEPARTMENT OF MECHANICAL ENGINEERING
LOURDES MATHA COLLEGE OF SCIENCE&TECHNOLOGY
KUTTICHAL, THIRUVANANTHAPURAM
NOVEMBER 2010




ABSTRACT

A scramjet (supersonic combustion ramjet) is reminiscent of a ramjet. The basic components of scramjet are inlet, diffuser, fuel injector, flame holder, igniter, and combustion chamber and exhaust nozzle. The basic principle of scramjet is same as that of any type of engine, intake, compression, combustion ....etc

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Theory of Relativity
*Theory of relativity (1905) was introduced by 
Ans : Albert Einstein 
*Theory of relativity have two separate theories
(i)Special theory of relativity
(a)Speed of light is constant for all observers
(b)Observer moving at constant speeds should be subject to the same physical laws.
(ii)General theory of Relativity (1915)
*The translational motion along the curved path - Curvilinear motion
eg:- The motion of a rocket in spa ....etc

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INTRODUCTION



CAVITATION

Cavitation is the process of formation of vapour bubbles of flowing fluid in a region where the pressure of the liquid falls below its vapour pressure and the sudden collapsing of these vapour bubbles in region of high pressure. At first small vapour filled bubbles are formed that gradually increase in size. As the pressure of the surrounding liquid increases, the cavity suddenly collapses-a centimeter sized cavity collapses in milliseconds. Cavities implode violently and create shock waves that dig pits in exp ....etc

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hi am Prafull more i would like to get details on ppt for seminar topic laser guided vehicle..... ....etc

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