Counterweight

A space elevator is a tower rising from earth into orbit with a counterweight, a deployment booster that will unfurl two thin strips of ribbon stretching two earths for orbit (Lemley 97), at the end of it. The idea for space elevators is quite old dating back to the writing of The Bible. It was first stated in the book of Genesis it was called the Tower of Babel, which met to reach the heavens. For the past three decades, space elevators were fiction that was hinting at a new age of exploration

“Ticket to the Stars” ” It was first written about in the Bible as the “Tower of Babel, long before any scientist thought about or came up with the idea to invent an elevator to take trips out of this world, instead of mentioning an elevator of course it was described as building a tower so high it would reach to the heavens. However, today that story is now almost a reality. With novels, such as that written by Arthur C. Clarke with the idea of a ride that would glide you into space. It

Nineteen year old Zindal Kordan stood at the window on the 409th floor of the unfinished Pax City Capitol Building and surveyed the rebuilding efforts going on far below. Over three weeks ago, he killed Henry Cavanaugh, the leader of the Naturalist Rebellion that had caused this bloody civil war Zin had fought in for almost a year now, on this alien planet so far from Earth where Zindal had grown up, but what he had come to call home. He hoped his actions, as brazen and dirty as they were, would

Effect of a Trebuchet Arm Length or Counterweight Mass on Projectile Distance A trebuchet is a siege weapon most commonly used in the middle ages. It uses gravity to propel an object. There are competitions held today called "Pumpkin Chunkin '" which use trebuchets to launch pumpkins as far as possible. The common question is what the dimensions should be when making it. Should the arm be longer or shorter? Should the counterweight be heavier or lighter? These questions have been asked by competitors

Traction trebuchets used human labor instead of a counterweight for power. The Chinese needed so much power for the trebuchet that they had up to 250 soldiers pulling on ropes to operate the machine. This machine could throw stones up to 100 meters, but was not very accurate, because of the inconsistency in using manpower. The first addition to the trebuchet was a major advancement in technology. It was called the Counterweight Trebuchet. This counterweight was affixed to the end of the shorter arm and

object suspended halfway between them with counterweights of equal mass on the outside of the pulleys was created, as shown in Figure 1. Our goal was to determine how the sag of the walkway was related to the total mass at the center of the pulleys. Figure 1: The apparatus used (not to scale). A and C are the masses of the counterweight objects. A and C are equal masses. B is

In contrast to this hypothesis, it was discovered that the experimental values deviate from the theoretical values when the counterweight falls more than 20 cm. This is due to the trebuchet shifting and rocking during launch which meant significant energy was lost during the launch. The height of the counterweight was chosen as a variable because of the formula for GPE (gravitational potential energy) is GPE=MGHwhich is all multiplication, meaning the greater the height

https://www.youtube.com/watch?v=8hAX72Xgf1U Rabbit on Da Moon. (2016, April 19). How to Build a Trebuchet [Video File]. Retrieved from https://www.youtube.com/watch?v=8hAX72gf1U Science Buddies. (2015, December 12). Effect of Trebuchet Arm Length or Counterweight Mass on Projectile Distance. Retrieved March 24, 2016, from http://www.sciencebuddies.org/science-fair-projects/project_ideas/ApMech_p013.shtml Trebuchet. (n.d.). Retrieved March 24, 2016, from https://www.msu.edu/~hartle35/KHweb/webquest/WebQuest

Matthew Chun ESS 102 Dr. Harnett 1/22/16 Space Elevator A way to push mankind forward we must explore further into space. The World famous physicist Stephen Hawking said that, “I believe that the long term future of the human race must be space and that it represents an important life insurance for our future survival, as it could prevent the disappearance of humanity by colonizing other planets” so it proves yet again that it is essential that we humans explore and colonize space. One of the biggest

Learned On a job site in Los Angeles, two Pankow Carpenters were tied off to a rebar wall installing blockouts and inserts. One of the Carpenters was separating the rebar with a burke bar behind the counterweight of a crane. While the crane was swinging, the burke bar was brushed by the counterweight of the crane and dislodged from the wall, causing the loose bar to strike the employee in the side. The employee climbed down from the rebar and informed his Foreman about the incident. The Pankow Carpenter