Propellant

PHA 6840 Assignment #9 1. Inhalants are classified as volatile substances that generate chemical vapors, which after inhaled produce a mind altering effect. The category of inhalants consists of a broad range of chemicals including: volatile solvents, gases, aerosols, and nitrates. The different forms of inhaled substances can be found commonly in industrial, medical, and household products. According to the Monitoring The Future Survey conducted in 2016, there is a significant decrease in…

implemented anti-pogo modifications that had been under development. These included addition of a helium-gas reservoir to the center engine liquid oxygen line to damp pressure oscillations, an automatic cutoff as a backup, and simplification of the propellant valves of all five second-stage…

The invention of gunpowder was drastic and life altering discovery. Gunpowder was discovered in Ancient China in the 9th Century during the Han dynasty, by an alchemist named Wei Boyang (A&E). Boyang was one of the many alchemists hired by the government to create an exlir that would satisfy the emperor’s search for immortality. Through his research he accidentally came across gunpowder. The alchemists “experimented with the Sulphur, common charcoal, and saltpeter heating the substances in order…

The Battle of Palo Alto took place on May 8, 1846 and lasted only 3 hours. The battle is marked as the first major engagement between Mexico and America during the Mexican-American war even though the battle took place days before America declared war on Mexico. The battle was short lived, proving the American artillery tactics and armament far superior to that of Mexico. The number of casualties Mexico took during this short battle was more than double that of America. Zachary Taylor, an…

The September 11th attacks in 2001 marked one of the toughest tragedies that the United States has faced. Following these attacks the United States has increased its security tremendously over the years to better protect the country from future attacks such as the one faced on that day 13 years ago. However, regardless of their attempts to strengthen the countries security, we’re still at high risk for a weapon of mass destruction attack. A weapon of mass destruction is ultimately defined as any…

1. Executive Summary This project describes an orbital space settlement called the ‘Interstellar Terrarium’(IST). It can house upto 50,000 people along with all the necessities. It takes the shape of a cylinder, to which support is given by a framework of strong carbon nanotubes that can bear the pressure of the walls, the atmosphere inside and the foundations for buildings, and thus prevent the walls from getting bowed outwards. The entire cylinder is divided into three concentric cylinders –…

Introduction Firearms take up a large percentage of crime around the world, particularly in the United Kingdom and the United States of America. Gun crime is defined as a crime or offence that is committed with the use of a firearm but there is no set definition as to why they are committed. Firearm legislation are a set of laws and guidelines that surround the topic of gun crime that are put into place by the government to try to control gun crime. From Prohibition to shootings, gun crime has…

with hydraulic mechanisms, new shells, machine guns, and gas. Artillery equipped with new hydraulic mechanisms meant that they could absorb more recoil and did not have to be repositioned after every shot. The new shells that were shot contained a propellant and timing devices that could be aimed more accurately and rapidly. It was the artillery that killed more people than any other weapon recorded. Tanks were also another advancement in World War I that caused many problems. They had massive…

type of active debris remover can have a range of up to three-hundred kilometers, giving it a distinct advantage over other methods \cite{lasers}. One of the problems highlighted in the plans for these kinds of laser satellites is the amount of propellant needed to perform so many maneuvers in GEO. This problem could be alleviated by using more efficient propulsion, such as the ion thrusters described in the IBS craft…

Immediately the external tank was jettisoned to burn in the atmosphere, the spacecraft’s Orbital Maneuvering System engines came to play. They provided the thrust required for the crews rendezvous as well as providing up to 1,000 pounds of propellant directed to the craft’s aft control system (Gaston,1991). Almost spontaneously, both orbital maneuvering system engines raised the orbiter to a predetermined elliptical orbit saving the crew from this ominous stage of their rather dangerous journey…