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Measures for Progress: A History of the National Bureau of Standards

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646 APPENDIX K<br />

NATIONAL BUREAU OF STANDARDS<br />

RESEARCH HIGHLIGHTS IN SCIENCE AND TECHNOLOGY—1946-1951<br />

1. ELECTRICITY<br />

& OPTICS<br />

2. METROLOGY<br />

3. HEAT & POWER<br />

Washer & Scott, Influence <strong>of</strong> <strong>the</strong> atmosphere upon <strong>the</strong> precision<br />

<strong>of</strong> telescope pointing (RP1829, 1947)<br />

Washer, Sources <strong>of</strong> error in and calibration <strong>of</strong> <strong>the</strong> f-number<br />

<strong>of</strong> photographic lenses (RP1927, 1948)<br />

Gardner & Hahner, Research and development in applied<br />

optics and optical glass at <strong>the</strong> NBS (M194, 1949)<br />

Washer & Case, Calibration <strong>of</strong> precision airplane mapping<br />

cameras (RP2108, 1950)<br />

Electrochemical constants: a symposium (C524,<br />

1953)<br />

Optical image evaluation: a symposium (C526,<br />

1954)<br />

Peters, Emerson, et aL, Electrical methods <strong>for</strong> diamonddie<br />

production (RP1787, 1947)<br />

Bowman, An automatic correction-computing chronograph<br />

[A method <strong>for</strong> making precision isochronism measurements]<br />

(Horological Inst. Am. J. 6, 13, 1951)<br />

Frequency-monitoring device <strong>for</strong> interval timers<br />

(TNB 33, 99, 1949)<br />

Gravity waves: a symposium (C521, 1952)<br />

Woolley, Scott & Brickwedde, Compilation <strong>of</strong> <strong>the</strong>rmal prop.<br />

erties <strong>of</strong> hydrogen in its various isotopic and ortho-para<br />

modifications (RP1932, 1948)<br />

Scott, [New helium liquefier <strong>for</strong> studies in superconduc-<br />

tivity] (TNB 33, 13, 1949)<br />

Low-temperature physics: a symposium (C519,<br />

1952)<br />

Mechanical properties <strong>of</strong> metals at low tempera.<br />

tures: a symposium (C520, 1952)<br />

Energy transfer in hot gases: a symposium (C523,<br />

1954)<br />

4. ATOMIC &<br />

Singer, Braestrup & Wyck<strong>of</strong>f, Absorption measurements<br />

RADIATION <strong>for</strong> broad beams <strong>of</strong> 1- and 2-million-volt X-rays [Use <strong>of</strong><br />

PHYSICS<br />

concrete as a high-energy radiation shield] (RP1735,<br />

1946)<br />

Meggers & Westfall, Lamps and wavelengths <strong>of</strong> mercury<br />

198 [New standard <strong>of</strong> length, <strong>the</strong> Hg198 lamp] (TNB<br />

31, 133, 1947; Sci. Mo. 68, 3, 1949; RP2091, 1950)<br />

Marton & Belson, Tracer micrography [with radioactive<br />

isotopes] (Science, 106, 2742, 1947)<br />

A non-magnetic radio-frequency mass spectrometer<br />

(TNB 32, 1, 1948)<br />

Marton & Lachenbruch, Electron optical observation <strong>of</strong><br />

magnetic fields [The electron optical shadow method <strong>for</strong><br />

field mapping] (RP2033, 1949)<br />

Curtiss & Carson, Reproducibility <strong>of</strong> photo-neutron stand-<br />

ards (Phys. Rev. 76, 1412, 1949)<br />

Hipple, Sommer & Thomas, A precise method <strong>of</strong> determin-<br />

ing <strong>the</strong> faraday by magnetic resonance [The omegatron]<br />

Phys. Rev. 76, 1877, 1949)

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