Poly Throwing Rifling

A firearm is one of the weapons that may be used when hunting. A firearm utilizes pressure produced from the burning of gunpowder to create gas. The pressure produced from the burning powder propels a projectile out of the barrel at a target. In rifles and most handguns the barrel has rifling on the inside of the barrel to make the projectile spin to travel better in the air. Rifling are groove that spin as they go through the inside of the barrel. Shotgun barrels are smooth and can fire “slugs”, a single projectile, or “shot”,

Cabbage ball is not a sport that is widely known. In fact, it is mainly played in the Greater New Orleans area. It is played with a ball that is similar to a soft ball but has a greater diameter a bit heavier and a lot harder to hit. I learned that it is a very popular adult league game and is taken very seriously by many of the players. When I was asked to play cabbage ball by a co-worker, I asked friends about the sport and learned that many native New Orleaneans grew up playing this sport during their childhood and many had nostalgic memories of playing pick up games in their school yards.

A Rifle could shoot a bullet up to 1,000 yards–and were more accurate. However, until the 1850s it was nearly impossible to use these guns in battle because, since a rifle’s bullet had roughly the same diameter as its barrel, they took too long to load. (Soldiers sometimes had to pound the bullet into the barrel with a mallet.)

This weeks assignment covered a specific drum magazine and the Ruger 10/22 rotary magazine. Granted, they both are tried and tested feeding mechanisms, they both serve a particular role and share many similarities. At one point(first video) he mentioned the ergonomic characteristics for the X91 skeletonized drum opposed to the Beta drum. I found this portion somewhat insightful. I’ve personally used a Beta drum and it does bring the benefit of having a high capacity but is also cumbersome. The Beta drum takes away from the fluidity and speed from the shooter. I honestly have nothing against high capacity magazines, I just don’t see the benefits or value in having a drum. Most drums are used in fully automatic rifles for suppressive roles in

A rifling is a given spiral grooves by the manufacturer. This rifling or spiral grooves cut into the barrel of a gun in order to make a bullet spin as it is fired. Rifling produces grooves and lands.

Main Motor Patterns: Catching a softball that is hit and throwing a softball that has been caught. Jumping and sprinting during practice or a game to catch a ball.

Bocce ball is a great way to demonstrate the complex wonders of Newton’s three laws in a simple and understandable way. Bocce ball, which was first documented in the year 5200 B.C., is a sport that was first popularized during the roman empire. It wasn’t more than just a leisurely activity until the game found its way back into Italy, once the Roman empire collapsed. Bocce ball was steadily rising and falling in popularity, until a major resurgence in 1896, when it was admitted an olympic sport, and has been part of the summer olympics ever since. Bocce has really become such a widespread sport because you can participate no matter how old, what your race is, or what gender you are. All you need to do is roll a ball. America seemed very separated from the game until a sweep of popularity in California in 1989. Today there is said to be 25,000,000 bocce ball players in the United States. Many aspects of the game of Bocce ball can be relatable to the simple concepts of Newton’s original three laws, from the balls hitting each other (Newton’s third law), to throwing balls harder to increase the force and then slowing down (Newton’s first and second laws). Throughout this essay, I will not only explain what each of Newton’s three laws mean, but provide a real life example of how it could relate to the game of bocce ball.

Lacrosse is a team sport that originated in the St. Lawrence Valley area, around 1546. It is played with a small rubber ball, a long stick with a sort of basket at the end, and padding (it is a contact sport). The objective of the game is to shoot the ball into the other team’s goal, using the stick to pass, cradle and shoot. At first, the game was played on a distance of even several miles, and anywhere between 100 and 100000 players in a single game. The teams are now composed of ten players each, 3 of them are offense, 3 defense, 3 midfielders, that can go anywhere on the field, and one goalie, which is the heart of the team. In this essay I will focus on the physics that stand behind lacrosse, and how companies that make lacrosse gear use our knowledge and understanding of forces to make padding and helmets that are safer, and sticks that are made for different kinds of play styles (contact defense, precision, fast offense…).

The U.S. civil war was the most bloody conflict that the U.S. had ever been involved in. It brought over 1,100,000 casualties from both sides, with over ninety percent of these casualties resulting from small- arms fire (Howey “Weaponry, the Rifle-Musket and the Minié ball”). The Minié Ball has been widely attributed to a majority of these cases. The Ball was a bullet developed by Claude-Étienne Minié and Henri-Gustave Delvigne in 1849 after the two French officers decided to improve on a currently existing design (HistoryNet “Minié Ball”). The pair also designed a rifle, a gun containing a barrel with grooves running in a corkscrew fashion along the length of the barrel. These grooves caught the bullet as it traveled down the barrel and spun it, greatly increasing the velocity and accuracy of the bullet as it left the barrel. Compared to the earlier musket balls, which bounced around in the barrel and exited at an unpredictable angle, it was much more accurate. When the bullet arrived in the United States, James Burton at the arsenal in Harper’s Ferry, Virginia, simplified the bullet into the .58 calibre widely used in the Civil War (Leonard “The Bullet That Changed History”). The ball, made of soft lead, featured a conical shape and a hollow center. This allowed it to expand to fit the barrel when shot out of the gun and easily engage the rifling, making it more aerodynamic and capable of flying at

Problems resulted due to soft factory projectiles causing Glock to issue warnings against the use of lead. Many companies today will void a warranty if hand-loads are used and this is not economical for shooters. According to Campbell (2017 Pg-1), the Glock uses a unique form of rifling known as polygonal rifling. According to Nash (2012), in a polygonal barrel, these cut lands and grooves are replaced by “hills and valleys” in a more gently rounded polygonal pattern, usually a hexagon or

“In 1977, led the Nfl with the most yards rushed in a single game, with 275 yards against the Minnesota Vikings” (the editors of encyclopedia Britannica). At the Jackson State University, Walter John Payton rushed 3500 yards and scored more than 450 points. Nobody could beat his record. Payton was the youngest player ever to receive the Mvp award. Not only did Payton play running back but he played many other positions. Payton is the best running back of all time.

A smooth-bore musket is a type of gun that is smooth on the inside. The bullet is pushed through the smooth barrel and can be launched about eighty yards. A rifled musket has a groove and is spiraled in the inside. The actually bullet is closer to the trigger and can shoot four hundred yards. These two different guns bring their own importance to the war because of the new, easy way killing someone became. The rifled musket seemed more effective in the long run, but the smooth-bore musket was just as useful. 620,000 Americans died (although a majority of the death was caused by disease) during this tragic war.

When the constitution was written the most advanced gun only shot one bolt at a time, and took 30 seconds to reload (Murphy). Now in the 21th century guns have “high-capacity magazines were used in at least 50% of the 62 mass shootings between 1982 and 2012. When high-capacity magazines were used in mass shootings, the death rate rose 63% and the injury rate rose 156%. David H. Chipman...stated that a high-capacity magazine ‘turns a killer into a killing machine.’ Some gang members use high-capacity magazines, such as 30 rounds or even 90 rounds, to compensate for lack of accuracy and maximize the chance to harm” (“Background of the Issue - Gun

The first thing you have to focus on when throwing the lacrosse ball is body positioning. To start off you want your non-dominant shoulder, like a right handed pitcher facing towards third on the mound about to throw a strike. The next thing you have to focus on is how you position your arms. Your non-dominant arm should be bent at a 90 degree angle with your hand going towards your opposite shoulder. Your dominant arm should be bent at a 90 degree with your arm going upward, like you're flexing your bicep, so that the butt of your stick is aimed at the target. Once you have the correct hand, arm, and body position, you throw the ball by stepping your front foot toward the target, so that your toe is facing them. While you are doing that you

“This variation has a design of a smaller breach that fired a cartridge of 76.2x585R, allowing a breach that will automatically open after the firing of each cartridge” (Ordnance, T. O, 1920). This was an innovative concept that allows the firing of multiple rounds at a greater rate to help with the adjustment needed when firing at an aircraft traveling at a high velocity, attitude, and altitude. “The muzzle velocity of this weapon firing a 15-pound shell, with either shrapnel or explosive charge, is 2,400 feet per second” (Ordnance, T.O, 1920). The maximum