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Word: planck (lookup in dictionary) (lookup stats)
Dates: during 1950-1959
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Usage:

...massive experiment conducted by Adolf Butenandt, 56, who was co-winner of the 1939 Nobel Prize in Chemistry (for isolating the male sex hormone, androsterone), a research team at Munich's Max Planck Institute for Biochemistry imported 1,000,000 silkworm cocoons from Italy and Japan, opened them up with razor blades, separated the pupae of 310,000 females from the males. What followed, in the words of one researcher, was "a mass slaughter, and not for the fainthearted." Each tiny pupa was disemboweled, the scent glands carefully cut out. Male moths served as lab assistants: when they were...

Author: /time Magazine | Title: Science: The Moth's Allure | 6/22/1959 | See Source »

...cold dark before winter dawn, by the TV screen's eerie blue glare, the show's rumpled star looks like an insomniac alchemist. With spectacles sliding down his nose, he brews electrons, protons and mesons while evoking Newton, Faraday, Planck, Einstein and Heisenberg. To watch NBC's Continental Classroom (6:307 a.m.), some 275,000 Americans are sacrificing sleep for science five days a week...

Author: /time Magazine | Title: Education: Eye Opener | 2/9/1959 | See Source »

Scattered thinly over the earth's surface are large patches of tektites-glassy lumps up to several inches across, of mysterious and probably unearthly origin. In Britain's Nature, American Chemist Truman P. Kohman, writing from West Germany's Max Planck Institute for Chemistry, argues that tektites must come from outside the solar system...

Author: /time Magazine | Title: Science: Detecting Tektites | 8/4/1958 | See Source »

Uncertainty. Neither theory is anywhere near being tested. To avoid "sensation," Heisenberg will not even publicly release his equation until next month. But physicists look for much from Heisenberg, head of the famed Max Planck Institute in Göttingen, and often called Einstein's successor. In 1932 Heisenberg won the Nobel Prize for one of modern physics' key laws, "the uncertainty principle," which holds that subatomic events cannot be observed individually without changing them by the very act of observation...

Author: /time Magazine | Title: Science: Assumptions of Symmetry | 5/5/1958 | See Source »

...Heisenberg reportedly proposes to add a third unit of measure to both Planck's constant ("the quantum of action'') and the fixed velocity of light, which Einstein used in formulating his Special Theory of Relativity, the structure of space and time. Said Heisenberg: "There must be still a third such natural unit of measurement which is conceived in present-day atomic physics as a length of the atomic order of magnitude-for example, the size of the diameter of simple atomic nuclei. The goal of atomic theory would be reached if one succeeded in stating a mathematical...

Author: /time Magazine | Title: Science: Assumptions of Symmetry | 5/5/1958 | See Source »

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