Circular of the Bureau of Standards, Masalah 24 |
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15 cents acid alloys analysis Annual reports apparatus application Bureau of Standards calculation capacity carbon cell cement cents chemical circular clays coils color committee concrete constant construction contains copper corrections curves described determined developed direct Director discussed effect electrical error experimental experiments factors force formulas frequency given gives glass heat important indicate inductance iron June laboratory lamps lead light lines magnetic manufacture materials means metal method observed obtained operation oxide Paint paper photometry physical practice prepared present Price properties publication radiation range Recommended reflection relation resistance samples scale sensitivity shown silver solutions sources specifications spectral spectrum steel strength tables temperature tests theory thermal thermometers tion tube units variations various wave lengths weights and measures wire
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