Quotables
"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 |
| 4031451 | Charging circuit with SCR's triggered by pedestal and cosine modified ramp unijunction circuit having means for current limiting by controlling pedestal level A battery charging circuit gates charging current through a silicon controlled rectifier triggered by a pedestal and cosine modified ramp unijunction circuit. A battery potential sensing circuit limits the initial surge current delivered to a fully discha... | 06/21/1977 |
