There have been many different types of weaponry since the rock to nuclear weapons‚ some of the most influential very simple‚ and some of the most complex‚ very minor. The following ancient weapons are some of the most influential and have changed the way people fight each other‚ for better or for worse. The Egadi. The Egadi is “a triple stack of 2 foot wide blades swooped back into a fitting that snugly capped a ship’s prow.” It came into existence at about 242 BCE. It was made using the “Lost
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Task Outline 1. Problem Statement 2. Project Management 1. Roles 2. PERT & Gantt chart 3. Communication strategies 3. PDS- Product Design Specifications 4. Document Concepts 1. Brainstorm and Research 2. Alternate concepts 3. Refine problem statement and PDS 4. Pugh tables 5. Modeling/testing/prototyping 5. Detailed Sketches- Solid Edge 1. Machining drawing 2. Isometric view from 2 sides 3. Exploded view 6. Detailed budget and list of materials
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Three things are usually required for a chemical explosion: a chemical reaction that occurs very rapidly‚ a large increase in gas pressure‚ and a confined-reaction vessel in which the pressure of the gaseous products can increase to a point that the gases break violently out of the container. In this chemistry and physics science fair project‚ you will use the combustion of ethanol to provide energy for a small explosion. The chemical equation that describes the combustion of ethanol is shown below
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According to The Physics Classroom‚ a projectile is when an object moves both vertically and horizontally and the gravity force is the only force that is acting upon it. The trajectory that the body draws in the air is a curved path called a parabola. When jumping from the ice‚ the skater accelerates
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drop‚ Sy of the bullet after travelling through a horizontal distance of 100 m. 100 m Sy Figure 2 6. On a flat golf course a golf ball is hit with an initial velocity 30 m/s at an angle of 40o and hit ground. Determine (a) the flight time (b) the range of the golf ball (c) the highest vertical displacement achieved 1 PHY094 Sem I 2015/2016 : Prepared by PM Azam ‚ Sir Ikhwan‚ Madam Abir‚ Madam Arda‚ Madam Hanim‚ and Madam Raihan 7. A net ball player throws a ball at a velocity 8 m/s in the direction
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motion of an objects without considering the effects that produce the motion. There are two types of motion: Linear or straight line motion (1-D) with constant (uniform) velocity with constant (uniform) acceleration‚ e.g. free fall motion Projectile motion (2-D) x-component (horizontal) y-component (vertical) 2 Learning Outcome: 2.1 Linear Motion (2 hour) www.kmph.matrik.edu.my At the end of this chapter‚ students should be able to: Define and distinguish between i) distance
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springs and tension to launch projectiles while trebuchets use a counter weight 4. When was it used? It was used around 500AD during the Middle (or Dark) Ages 5. Why did it fall out of favor? Trebuchets fell out of favor due to them being expensive to construct‚ needing a high level of maintenance‚ having little mobility‚ and needing more skillful men to even operate it. Why is it no longer used for warfare? It’s no longer used for warfare due to the projectiles being an overkill and easy for
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The both use anywhere from six to thirty-two pound projectiles for ammunition. Just as with muskets there are smoothbores‚ rifled barrels and breech-loaded cannons. The rifled barrel cannons were used less often because as the barrels were made of bronze‚ a softer metal than the iron of the musket‚ the rifling
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Ballistic pendulum designed experiment Aim: to investigate how the mass of the projectile affects distance on the motion of a wooden block it strikes Hypothesis: the heavier the projectile the further the distance will be covered by the wooden block Variables: variables Identification Manipulation Independent Mass of projectile The four different masses will be used in different combinations Dependent distance Measured using tape measure Controlled 1. Height of retort stand 2. Release angle
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War was the first conflict for the percussion cap to be used. The percussion cap allows for an all-weather reliability of the rifle. The previous common mechanism of firearms was the flintlock. For the flintlock to ignite the powder‚ firing the projectile‚ it required a spark created by flint‚ hence “flintlock”. Flintlock based weapons were inoperable in wet weather‚ limiting its effectiveness and versatility. The percussion cap eliminated the flintlocks shortcomings and granted efficiency to the
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