Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7367456 | Air jig for separation of minerals from coal An improved air jig apparatus and method is disclosed in which a dry magnetic separator is used to separate paramagnetic and ferromagnetic minerals from the dust component of coal cleaned with the air jig. The cleaned product of the dry magnetic separator is combine... | 05/06/2008 |
| 6467631 | Air sifting apparatus An air sifting apparatus is provided for preparatory concentration of raw material including coal, and includes a material feed-in device, a material bed support device, an air jig plenum, and a discharge control device. The material bed support device re... | 10/22/2002 |
| 5996808 | Fly ash processing using inclined fluidized bed and sound wave agitation A process and device for separating different types of particulates from a mixture, which is especially suited for separating unburned carbon from raw fly ash. The process entails separating raw fly ash by size into a fine component and a coarse component... | 12/07/1999 |
| 5197398 | Separation of pyrite from coal in a fluidized bed Processes and arrangements that provide for the separation of pyrite from coal in a fluidized bed. The processes provide for more efficient and complete stratification of the bed materials in a vertical direction, so that the very top layer of the fluidiz... | 03/30/1993 |
| 4642180 | Portable apparatus for the recovery of placer gold The present invention relates to an improved portable lightweight apparatus for the separation of gold and similar metals from pulverized ore, sand, debris and the like. More particularly, the invention is a portable lightweight apparatus which uses curre... | 02/10/1987 |
