https://padlet.com/adrianajlemus2708/qbopf4q080x65d7 Adriana Lemus 9th "A" en-us 2021-09-24 02:11:22 UTC 2023-07-02 18:10:25 UTC hello@padlet.com adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764603505 As a young boy in the late 1890s, Robert Goddard was inspired by H.G. Wells’s The War of the Worlds and the possibilities of space travel. As a middle-aged man in the mid-1920s, he achieved the first test flight of a liquid-fueled rocket, from his aunt’s farm in Auburn, Massachusetts. The rocket flew 12.5 meters (41 feet) in the air.]]> 2021-09-24 02:23:00 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764603505 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764606981 After the development of radio, the transmission of an image was the next logical step. Early television used a mechanical disk to scan an image. As a teenager in Utah, Philo T. Farnsworth became convinced that a mechanical system would not be able to scan and assemble images multiple times a second. Only an electronic system would do that. In 1922 the 16-year-old Farnsworth worked out a plan for such a system, but it wasn’t until 1927 that he made the first electronic television transmission, a horizontal line.]]> 2021-09-24 02:24:33 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764606981 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764610503 Iowa State mathematician and physicist John Atanasoff designed the first electronic digital computer. It would use binary numbers (base 2, in which all numbers are expressed with the digits 0 and 1), and its data would be stored in capacitors. In 1939 he and his student Clifford Berry began building the Atanasoff-Berry Computer (ABC).]]> 2021-09-24 02:26:11 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764610503 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764613035 As part of the Manhattan Project to build the first atomic bomb, it was necessary to understand nuclear reactions in detail. On December 2 underneath the football stands at the University of Chicago, a team of physicists led by Enrico Fermi used uranium to produce the first self-sustaining chain reaction.]]> 2021-09-24 02:27:23 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764613035 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764615460 On December 23 Bell Labs engineers John Bardeen, Walter Brattain, and William Shockley gave the first public demonstration of the transistor, an electrical component that could control, amplify, and generate current. The transistor was much smaller and used less power than vacuum tubes and ushered in an era of cheap small electronic devices.]]> 2021-09-24 02:28:29 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764615460 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764620550 The Soviet Union surprised the world on October 4, when it launched the first artificial satellite, Sputnik 1, a small 83.6-kg (184.3-pound) metal sphere. The space race began between the Soviet Union and the United States, opening up a new front in the Cold War.]]> 2021-09-24 02:30:38 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764620550 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764622800 The first computers that emerged after World War II were gigantic, but, with advances in technology, especially in putting many transistors on a semiconductor chip, computers became both smaller and more powerful. Finally, they became small enough for home use. The first such personal computer was the Altair, which was soon supplanted in 1977 by the Apple II, the TRS-80, and the Commodore PET.]]> 2021-09-24 02:31:37 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764622800 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764626379 Vinton Cerf and Robert Kahn produced the TCP/IP (Transmission Control Protocol/Internet Protocol), which describes how data can be broken down into smaller pieces called packets and how these packets can be transmitted to the right destination. TCP/IP became the basis for how data is transmitted over the Internet]]> 2021-09-24 02:33:13 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764626379 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764629823 American biochemist Jennifer Doudna and French microbiologist Emmanuelle Charpentier developed CRISPR-Cas9, a method for editing genes—that is, making changes to DNA sequences. Gene editing has the potential to treat many diseases but also opens up the ethical gray area of creating designer humans.]]> 2021-09-24 02:34:47 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764629823 adrianajlemus2708 https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764633099 The team behind the AlphaGo artificial intelligence program announced that it had become the world’s best go player. Go is a game with very simple rules but many possible positions. The previous year AlphaGo had defeated the great player Lee Sedol in a match 4–1. AlphaGo then played itself and, through continual improvement, was able to defeat the version that had defeated Lee, 100–0. Through machine learning, AlphaGo had become better at the game than any human.]]> 2021-09-24 02:36:12 UTC https://padlet.com/adrianajlemus2708/qbopf4q080x65d7/wish/1764633099