Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7537456 | Wagering game with table bonus A method of playing a casino table wagering game with at least two players comprises wagering on an underlying game where players may receive a bonus for obtaining a player hand of at least a predetermined rank; placing a side bet that at least one player of the at ... | 05/26/2009 |
| 6928032 | Mechanism for displaying the moon phases A mechanism for displaying the moon phases which has an upper disc or moon dial (1) and a lower disc or moon indicator (2) that is mounted concentrically to it. One of these discs is mounted rotatably relative to the other. The moon dial (1) has... | 08/09/2005 |
| 6343938 | Moon phase demonstration system An educational astronautical system for instructing students in the cause and result of the phases of the moon. A hollow outer sphere has a smaller inner sphere mounted in the center of the inside space of the outer sphere. The inner sphere resembles the ... | 02/05/2002 |
| 5529500 | Two-dimensional earth-moon-sun instructional model A disk that illustrates a polar view of the earth rotatably mounted on a flat supporting base representing a celestial plane through the earth's equator. A radial arm is provided with its proximal end pivotally mounted on the center of the earth disk and ... | 06/25/1996 |
| 5114348 | Tutorial device for observing lunar phase The invention provides a tutorial device for observing lunar phase. A base sheet is inscribed with a time scale, a ring of moon pictures and a ring of moon phases. Outer circles on the base sheet define the months, and times of moonrise, moonset and moons... | 05/19/1992 |
| 4747780 | Multi-function globe with its related planets It is a multi-globe system including the sun, the earth and the moon, and it mainly comprises a supporting frame, a power operation structure, an earth orbit base, a moon transmission structure, a sun structure, an earth structure, a calendar device, and ... | 05/31/1988 |
| 4713011 | Solar system simulator An apparatus for simulating a large scale, rotating representation of the solar system inner planets and the Sun is described, comprising a series of moving and stationary concentric rings arranged about a pedestal, above which is a highly reflective glob... | 12/15/1987 |
