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Hänsch, Theodor Wolfgang
(Encyclopedia)Hänsch, Theodor Wolfgang, 1941–, German physicist, Ph.D. Heidelberg, 1969. He was a professor at Stanford from 1975 to 1986 and then became head of the Max Planck Institute for Quantum Optics, Garc...chromatic aberration
(Encyclopedia)chromatic aberration: see aberration, in optics. ...spherical aberration
(Encyclopedia)spherical aberration: see aberration, in optics. ...linen
(Encyclopedia)linen, fabric or yarn made from the fiber of flax, probably the first vegetable fiber known to people. Linens more than 3,500 years old have been recovered from Egyptian tombs. Phoenician traders mark...cable television
(Encyclopedia)cable television, the transmission of televised images to viewers by means of coaxial cables. Cable systems receive the television signal, which is sent out over cables to individual subscribers, by a...cordage
(Encyclopedia)cordage kôrˈdĭj [key], collective name for rope and other flexible lines. It is used for such purposes as wrapping, hauling, lifting, and power transmission. Early man used strips of hide, animal h...sisal hemp
(Encyclopedia)sisal hemp sīˈsəl, sĭsˈəl, sēsälˈ [key] [from Sisal, former chief port of Yucatan], important cordage fiber obtained from the leaves of the sisal hemp plant, an extensively cultivated tropica...Helmholtz, Hermann Ludwig Ferdinand von
(Encyclopedia)Helmholtz, Hermann Ludwig Ferdinand von hĕrˈmän lo͞otˈvĭkh fĕrˈdēnänt fən hĕlmˈhôlts [key], 1821–94, German scientist. Although known especially as a physicist and biologist, he was al...Glauber, Roy Jay
(Encyclopedia)Glauber, Roy Jay, 1925–2018, American physicist, b. New York City, Ph.D. Harvard, 1949. From 1952 he was on the faculty at Harvard, where he became a professor in 1956. Glauber was the co-recipient,...Dacron
(Encyclopedia)Dacron dāˈkrŏn, dăkˈrŏn [key], trademark for a polyester fiber. Dacron is a condensation polymer obtained from ethylene glycol and terephthalic acid. Its properties include high tensile strength...Browse by Subject
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