gunn frequency
61Exotropia — Classification and external resources ICD 10 H50.1, H50.3 ICD 9 …
62Convergence insufficiency — Convergence Insufficency Classification and external resources ICD 10 H51.1 ICD 9 378.83 …
63Gallium arsenide — Gallium arsenide …
64David J. Wineland — (born 1944) is an American physicist at the National Institute of Standards and Technology (NIST) physics laboratory in Boulder. His work has included advances in optics, specifically laser cooling of ions in Paul traps and use of trapped ions to …
65Speech repetition — Children copy with their own mouths the words spoken by the mouths of those around them. This enables them to learn the pronunciation of words not already in their vocabulary. Speech repetition is the saying by one individual of the spoken… …
66Blindness — This article is about the visual condition. For other uses, see Blindness (disambiguation). Blindness Classification and external resources A white cane, the international symbol of blindness ICD …
67Civil engineering — The Petronas Twin Towers, designed by architect Cesar Pelli and Thornton Tomasetti and Ranhill Bersekutu Sdn Bhd engineers, were the world s tallest buildings from 1998 to 2004. Civil engineering is a professional engineering discipline that… …
68Cornet — This article is about the B♭ instrument. For E♭ instrument, see Soprano cornet. For other meanings of the word Cornet, see Cornet (disambiguation). Not to be confused with coronet or cornett. Cornet …
69Color blindness — Colorblind and Colourblind redirect here. For other uses, see Colorblind (disambiguation). Color blindness or color deficiency Classification and external resources An 1895 illustration of normal vision and various kinds of color blindness …
70Olbers' paradox — in action In astrophysics and physical cosmology, Olbers paradox is the argument that the darkness of the night sky conflicts with the assumption of an infinite and eternal static universe. It is one of the pieces of evidence for a non static… …
