A Projector is an optical instrument that is used to project a picture on a blank screen with the help of reflection or as done by a lantern. Basically, it enlarges and reflects an object. This is done with the help of lenses, prism and mirror that is used as a reflector. Apart from other …
Despite Al Gore’s claims to the contrary, the Internet was not originally invented by or created by a single person. The Internet as we know it today is a combination of a number of concepts that have ultimately been merged together to provide the service. Tim Berners-Lee (or Sir Timothy John Berners-Lee as officially known …
The ENIAC is credited as being the first electronic general-purpose computer. The acronym stands for Electronic Numerical Integrator and Computer. Although earlier machines had many of the same qualities that the ENIAC exhibited, the ENIAC was the first Turing-complete digital computer capable of solving a range of computing questions. However, ENIAC was originally built as …
Erasing browser history clears the record of what web sites the user visited over a period of time. This can help to protect privacy by preventing others from monitoring what web sites the user has been visiting. Erasing Internet Explorer’s Browser History By default, Internet Explorer keeps browser history for 20 days. To erase browser …
Cell phone technology is based on radio technology that was developed from the 1940’s onward. For instance, the beginning of cell phones can be traced to the innovation in taxi cabs, police cars, and other service vehicles where two way radios allowed taxi drivers or police officers to communicate with one another or with a …
Radio was not invented by any single person, but instead was a culmination of several scientists’ research, each of whom pioneered a different area of electromagnetic radiation and radio waves during the late 1800s and early 1900s. Among these men are well known researchers such as Heinrich Rudolf Hertz, James Clerk Maxwell, David E. Hughes, …
The water thermometer has been around for centuries, but not many people are aware of the origins of this instrument. The following is a brief synopsis of the origin and development of the water thermometer. Origins The first water thermometer was created during the 16th century. In the year 1593, Galileo Galilei did the existing …
Dr. Martin Cooper is the person credited with both inventing the modern cell phone as well as making the first cell phone call in New York City, New York in April 1973. A related invention is the cave radio phone invented by Nathan Stubblefield who was awarded a patent for the idea in the early …
A microphone is a device that converts acoustic power into electric power. Both the acoustic power and the electric power have similar wave characteristics that convert sound waves into electric voltages that eventually convert back into sound waves through speakers. Microphone were used with the first telephones, and then with radio transmitters soon after. Sir …
The invention of the telephone is credited to American Alexander Graham Bell and Thomas Watson in the mid-to-late 19th Century. Although Bell ultimately prevailed in the early signs of patent wars to come in the tech industry, there are a number of inventors who helped contributed technological and conceptual advancements that furthered telephone technology in …