In Album: Pamela Elliott-Jamison's Timeline Photos
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1228 x 928
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807.77 Kb
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Michael Blankenship
In the '80s there were $400 coffee pots on submarines because their power operates on a weird number of hertz (3-phase 400 rather than the expected single-phase 60). Although that means that all internal transformers and motors are a fraction of the usual weight it means that basic consumer goods be... View More
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