"We are probably nearing the limit of all we can know about astronomy."
Simon Newcomb, astronomer ; 1888
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| Number | Title | Issue Date |
| 6712033 | Spark electrodes with adjustable gap In an ignition electrode arrangement for a cylinder in an internal combustion engine, for example an Otto engine, a cylinder head (3) bears a first electrode (7) and a second electrode (8) which interact with one another. At least the first elec... | 03/30/2004 |