Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7847426 | Wind power generation A wind power generating system is disclosed. The wind power generating system comprises a plurality of blades to capture wind energy; a shaft coupled to the plurality of blades, and a power extractor for extracting power from the rotation of the plurality of blades.... | 12/07/2010 |
| 7752830 | Electronic elongation-sensing rope A fibrous tension member includes a plurality of structural threads and two or more indicator threads. The two or more indicator threads are located with respect to the plurality of structural threads such that a differential elongation between the two or more indic... | 07/13/2010 |
| 7656053 | Controlling power extraction for wind power generation A power generation system is disclosed. The power generation system comprises a kite connected to a line. The line is alternatively let out during a traction phase and recovered during a recovery phase. A power extractor connected to the line to extract power during... | 02/02/2010 |
| 7516605 | Electronic elongation-sensing rope A fibrous tension member comprises a plurality of structural threads and an indicator thread. The indicator thread modulates one or more electrical properties of the indicator thread based at least in part on the elongation of the indicator thread. A system for sens... | 04/14/2009 |
