Technology Devices
12.04.2016 11:59
Problems for the invention of:
1.Cell phone:
The inventor of the cell phone Martin cooper is an american engineer,He is a pioneer and visionary in the wireless communications industry.
At the begining the cell phone was the size of a brick, it was very heavy, it had only 20 minutes of talk time before requiring a 10-hour recharge and wasn't commercially sold for another decade.Now the cellphone allow us to make phone calls to a person instead of to a place.
2.Telephone:
Created by: Charles Borseul, Antonio Mucci, Johan Phillip Reis, alexander Grahamm Bell and Elisha Grey. The main feature of the telephone is to shorten distances between people who are far away from each other and making it fast and easy. And the main problem is that people had to shout to overcome noise and there was a time lapse in the transmission which resulted in incoherent conversations, but by changing the design multiple times, the problems were resolved. The phone underwent changes like a moveable listening earpiece and a stationary speaking tube which improved the design of the original telephone.
4.Radio:
Many people were involved in the invention of the radio in its current form but the most recognized,known for his pioneering work on the radio was Guglielmo Marconi; He was an Italian inventor and electrical engineer.
The problems with this invention were: the connection between electricity and magnetism, the electromagnetism waves (wich didn´t exists in that time), the electronic components and methods to improve the transmission and detection of electromagnetic waves.
Now with the radio we can transmite messages and hear them over a long distance without problems.
3.Computer:
Created by: Many people were involved in the development of the computer, for example, Charles Babbage, Konrad Zuse and Henry Edward Roberts. It was created to solve logical and mathematical problems instantly. At first it had many problems. Compared to the computers we have now, the memory of the first computers was very unreliable due to the lack of semiconductors, instead, they used very expensive systems based on the use of magnetic core arrays and telephone exchange, which made them bigger and slower, but it had a solution. With the invention of semiconductors, after centuries of investigation, the early computers became smaller, faster and easier to operate.
4.GPS:
Created by: Roger L. Easton, Ivan A. Getting and Bradford Parkinson. It was created for military and intelligence applications during the cold war. It was inspired by the Soviet spacecraft Sputnik. The main problems: the US military, fearing that the GPS could be used against them, decided to deliberately decrease the accuracy of the system in 1990. And the solution was that in 2000 and after the gulf war, the US military decided to end the purposeful degradation of the GPS. The accuracy improved overnight and all kinds of companies started to use it.
5.TV:
Created by: TV was the result of the work of many people during the 19th and 20th centuries. The most influential were: Paul Nipkow, Charles Jenkins, John Logie Baird, Allan A. Campbell-Swinton and Philo Farnsworth. It was created to make profit and change the world through visual and audio communication technology. The main problem during its creation was that the image had bad definition and in some early designs, moving image wasn’t possible. And the solution was that John Logie Baird used the Nipkow disk in one of his designs and transmitted image and movement through radio waves. This system managed to produce an image of a face and in 1932 the system had reached a peak of 240 lines of resolution.