A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7136084 | Random laser image projector system and method A laser projection system is disclosed. The laser projection system includes a laser light source that is configured to selectively provide laser light. The system also includes an input beam deflection unit receiving the laser light and configured to deflect the la... | 11/14/2006 |
| 4433902 | Projection printer A non-impact printing method wherein pulsed light is transmitted through a mask containing enlarged characters. The characters are optically reduced and are focused on a document in back of a heat-sensitive or thermal magnetic ink ribbon. Heat energy proj... | 02/28/1984 |
| 4293203 | Phototypesetter, method and apparatus A high speed phototypesetter in which a font is selectively illuminated by motor-driven scanning mirrors and scanning motion is cancelled in the reflected image light by mirrors on the same driven shaft or shafts. The image beam from the font is then sepa... | 10/06/1981 |
| 4134651 | Method of making an assembly A method of making an assembly comprising a support plate with an array of lenslets made from optically refractive material mounted thereon, the support plate being substantially optically transparent at least in the regions adjacent the lenses, the metho... | 01/16/1979 |
| 4107702 | Arrangement for reading out an optical memory An arrangement for reading out selected characters from a font of characters stored on a stationary optical memory is disclosed. An equal number of light sources and lenses are arranged in front of a matrix plate. The images of the light sources are broug... | 08/15/1978 |
| 3987459 | Electro optical symbol emitting and recognition device A solid state electro optical symbol emitting and symbol recognition device employing a source of collimated and parallel light for projecting an image, a symbol matrix of photographic film containing the symbols such as alphanumeric font that is to be pr... | 10/19/1976 |