"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 4763534 | Pressure sensing device A pressure sensing device utilizing force transducer ink comprises a resistive region deposited between a first and a second conducting region on a first insulating material, the resistive region electrically coupling the two conducting regions. On a seco... | 08/16/1988 |
| 4649784 | Method and apparatus for sensing activity for a keyboard and the like Apparatus and method for the monitoring of the manipulation of the keys of an instrument comprises monitoring apparatus which takes the form of a pressure sensing device, associated with each key, that can be fabricated in a configuration compatible with ... | 03/17/1987 |