The back-and-forth motion of a swing is an example of a pendulum. We see pendulums in other areas of our lives as well, such as in grandfather (also known as longcase) clocks.ther factors, including a pendulum's length, can also affect its motion. Background. A pendulum is an object hung from a fixed point that swings back and forth under the action of gravity.
More than a century later, however, the worldâs first computer was actually built. 1890: Herman Hollerith designs a punch card system to calculate the 1880 census, accomplishing the task in just three years and saving the government $5 million.
The first computer mouse was invented and developed by Dougles Englebart during the 60â² and was patented on November 17, 1970. Douglas was working at the Stanford Research Institute, a think tank sponsored by Stanford University. He originally named the mouse as a âX-Y Position Indicator for a Display System â.