"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 |
| 7364536 | Weight bar with internally-threaded axial ends A weight bar for use with a dumbbell having an externally-threaded end is provided that includes a substantially cylindrical elongated bar having a longitudinal axis, first and second axial ends and an intermediate section extending between the axial ends. The first... | 04/29/2008 |