General term for the processes by which human beings fashion tools and Machines to increase their control and understanding of the material environment. The Term is derived from the Greek words tekhne, which refers to an art or craft, and logia, Meaning an area of study; thus, technology means, literally, the study, or science, of Crafting. As technology evolves, scientist and historians say that technology grows at A geometric rate without respect to geographical limits or political systems. These Innovations tend to transform traditional cultural systems, frequently with unexpected Social consequences.
Thus technology can be conceived as both a creative and a Destructive process. Technology Has been evolving with us since the beginning of the Prehistoric age, from the simplest off tools of the cave men to the now present future. Electronic fiber optic cables and the computerized artificial intelligence. Technology is Very important in our society, with out it we would not be able to survive in our ever Changing society. Imagine is someone didn’t invent transportation. We would have not Discovered the other continents. Or not having the technology to cope with our ever Growing population.
We would have run out of enough supply of food to feed ourselves. How about if cave men didn’t discover fire? We would have not survive even just for a Day. All these things we owe to technology, so we must harness what it has to offer And further improve our society. Inventions That Have Changed Our Lives: Telephone: In the field of communication one of the most famous and useful invention In our modern society is the telephone. Invented by Alexander Graham Bell, he has Made our life so much easier and more productive. Saying that he has made an impact To society would be an understatement.
These telephones transmit electronic pulses That would then be converted to sound that is comprehendible to us humans, but These telephones are big and bulky and they need wires to transmit these pulses. Then Came the invention called A cellular telephone that designed to give the user maximum Freedom of movement while using a telephone. A cellular telephone uses radio signals To communicate between the set and an antenna. The served area is divided into cells something like a honeycomb, and an antenna is placed within each cell and connected by telephone lines to one exchange devoted to cellular telephone calls.
This exchange connects cellular telephones to one another or transfers the call to a regular exchange if the call is between a cellular telephone and a noncellular telephone. The special cellular exchange, through computer control, selects the antenna closest to the telephone when service is requested. As the telephone roams, the exchange automatically determines when to change the serving cell based on the power of the radio signal received simultaneously at adjacent sites. This change occurs without interrupting conversation.
Practical power considerations limit the distance between he telephone and the nearest cellular antenna, and since cellular phones use radio signals, it is very easy for unauthorized people to access communications carried out over cellular phones. Currently, digital cellular phones are gaining in popularity because the radio signals are harder to intercept and decode. Also the fast growing popular video phones that work like a normal telephone but includes the ability to transmit videos through the use of a small camera. although these video phones are not yet popular in our present society. hey will soon be in every home in the world.
Pagers: ot all inventions that where once practical remain practical. one example are the invention of pagers. although these pagers are still currently used in our society they in my own opinion have out lived there use. these pagers where used during the early 90s for the reason that they are more reliable, less expensive and more portable than a cellphone. but now cellphones are cheaper and come in sizes that are almost as small as a pager. so these pagers have out lived there use and are now impractical to use in some countries. ut in the Philippines we have still retained it for they are free ompared to a cellphone.
Satellite Band Radio (SBR) Satellite Band Radios are virtually unheard off in our country. these radios are like normal radios but use satellites to transmit there information instead of the normal analog radio waves used. the use of these satellite radios give us better variety in the programs we listen to. and will infact make the change of information faster and easier from country to country. for a person will receive same information virtually at same time as other radios abroad.
Internet: internet is a term used for the interconnection of computer networks that enables onnected machines to communicate directly and transmit data to any place in the world. in this part of the paper i will talk about the communication possibilities of the internet. First is the E-mail the E-mail is one of the first applications used in the internet. an E-mail is like sending a regular mail to someone, but instead of waiting a long time for the person to receive the mail, a person can get it in less than a second. and then can reply to you just as fast.
It works buy sending data to lots of interconnected computers to a server that then sends it over to the person the mail is ddress to in less than a second. another program is the ICQ. The ICQ basically works just like a pager. but with so much more, you can exchange files, chat, play games and so on. also there is the IRC or Internet chat. these programs are just like the two programs but it is done in real time and the amount of people you can talk to at a time is almost endless. Television: The television is one invention that is certainly very much used today.
A Television has a variety of applications in society, business, and science. The most common use of television is as a source of information and entertainment for viewers n their homes. Security personnel also use televisions to monitor buildings, manufacturing plants, and numerous public facilities. Public utility employees use television to monitor the condition of an underground sewer line, using a camera attached to a robot arm or remote-control vehicle. Doctors can probe the interior of a human body with a microscopic television camera without having to conduct major surgery on the patient.
Educators use television to reach students throughout the world. there are basically two forms of television used today they are the satellite and the cable television. he satellite t. v. transmits channels through the use of satellites. while a cable t. v. uses cables to send channels. although these are also sent through satellites to a cable operator and then digested through cables to our t. v. soon television will be intertwined with the net. you can surf and watch television at same time using a cable or a satellite.
The new televisions that are being sold to the market are now laced with new features like PnP and automatic adjusting color t. v. s that change with its surroundings. Computers: People use computers in a wide variety of ways. In business, computers rack inventories with bar codes and scanners, check the credit status of customers, and transfer funds electronically. In homes, tiny computers embedded in the electronic circuitry of most appliances control the indoor temperature, operate home security systems, tell the time, and turn videocassette recorders on and off.
Computers in automobiles regulate the flow of fuel, thereby increasing gas mileage. Computers also entertain, creating digitized sound on stereo systems or computer-animated features from a digitally encoded laser disc. also the use of the internet with virtually infinite ossibilities through the use of interconnected computers. Computer programs, or applications, exist to aid every level of education, from programs that teach simple addition or sentence construction to advanced calculus.
Educators use computers to track grades and prepare notes; with computer-controlled projection units, they can add graphics, sound, and animation to their lectures. Computers are used extensively in scientific research to solve mathematical problems, display complicated data, or model systems that are too costly or impractical to build, such as testing the air flow round the next generation of space shuttles. The military employs computers in sophisticated communications to encode and unscramble messages, and to keep track of personnel and supplies.
Medical Drugs: The use of immunization to prevent disease predated the knowledge of both infection and immunology. In China in approximately 600 BC, smallpox material was inoculated through the nostrils. Inoculation of healthy people with a tiny amount of material from smallpox sores was first attempted in England in 1718 and later in America. Those who survived the inoculation became immune to smallpox. American statesman Thomas Jefferson traveled from his home in Virginia to Philadelphia, Pennsylvania to undergo this risky procedure.
A significant breakthrough came in 1796 when British physician Edward Jenner discovered that he could immunize patients against smallpox by inoculating them with material from cowpox sores. Cowpox is a far milder disease that, unlike smallpox, carries little risk of death or disfigurement. Jenner inserted matter from cowpox sores into cuts he made on the arm of a healthy eight- year-old boy. The boy caught cowpox. However, when Jenner exposed the boy to mallpox eight weeks later, the child did not contract the disease.
The vaccination with cowpox had made him immune to the smallpox virus. Today we know that the cowpox virus antigens are so similar to those of the smallpox virus that they trigger the body’s defenses against both diseases. In 1885, Louis Pasteur created the first successful vaccine against rabies for a young boy who had been bitten 14 times by a rabid dog. Over the course of ten days, Pasteur injected progressively more virulent rabies organisms into the boy, causing the boy to develop immunity in time to avert death rom this disease.
Another major milestone in the use of vaccination to prevent disease occurred with the efforts of two American physician-researchers. In 1954 Jonas Salk introduced an injectable vaccine containing an inactivated virus to counter the epidemic of poliomyelitis. Subsequently, Albert Sabin made great strides in the fight against this paralyzing disease by developing an oral vaccine containing a live weakened virus. Since the introduction of the Sabin vaccine in 1961, polio has been nearly eliminated in many parts of the world.
As more vaccines are developed, a new eneration of combined vaccines are becoming available that will allow physicians to administer a single shot for multiple diseases. Work is also under way to develop additional orally administered vaccines and vaccines for sexually transmitted diseases. Possible future vaccines may include, for example, one that would temporarily prevent pregnancy. Such a vaccine would still operate by stimulating the immune system to recognize and attack antigens, but in this case the antigens would be those of the hormones that are necessary for pregnancy.
The German chemist Felix Hoffman synthesized the acetyl derivative of salicylic acid lso called aspirin in 1893 in response to the urging of his father, who took salicylic acid for rheumatism. Aspirin is currently the first-choice drug for fever, mild to moderate pain, and inflammation due to arthritis or injury. Of the few anesthetic agents known to the ancients, opium and hemp were the most important. Both were taken by ingestion or by burning the drug and inhaling the smoke. Nitrous oxide, discovered by the British chemist Sir Humphry Davy about 1800, was first used as an anesthetic in 1844 by the American dentist Horace Wells.
In 842 the American surgeon Crawford Long successfully used ethyl ether as a general anesthetic during surgery. He failed to publish his findings, however, and credit for the discovery of the anesthetic properties of ether was given to the American dentist William Morton, who in 1846 publicly demonstrated its use during a tooth extraction. In 1847 the British physician Sir James Simpson discovered the anesthetic properties of chloroform. Many other general anesthetics have since been discovered. without these medicines it would be hard for us to cope with the deseases that come our way.