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precession of the equinoxes
(Encyclopedia) CE5 Precession of the equinoxes (the points at which the earth's celestial equator intersects its ecliptic) is due to the slow rotation of the earth's axis around a perpendicular to the ecliptic. ...mks system
(Encyclopedia)mks system, system of units of measurement based on the metric system and having the meter of length, the kilogram of mass, and the second of time as its fundamental units. Other mks units include the...light
(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...Babel, Isaac Emmanuelovich
(Encyclopedia)Babel, Isaac Emmanuelovich ēˈsäk əmäno͞oāˈləvĭch bäˈbəl [key], 1894–1940, Russian writer, b. Odessa. Babel was quick to embrace the Bolshevik revolution of 1917, but in the end it was t...Jehovah-jireh
(Encyclopedia)Jehovah-jireh jəhōˈvə-jīˈrē [key], in the Bible, Abraham's name for the spot where the angel prevented the sacrifice of Isaac. ...Stern, Isaac
(Encyclopedia)Stern, Isaac, 1920–2001, American violinist, b. Kremenets, in what is now Ukraine. Brought to the United States as an infant, Stern began piano lessons at the age of six and violin lessons at eight....Friedman, Jerome Isaac
(Encyclopedia)Friedman, Jerome Isaac frēdˈmən [key], 1930–, American physicist, b. Chicago, Ph.D. Univ. of Chicago, 1956. A professor at the Massachusetts Institute of Technology, Friedman won the 1990 Nobel P...Beeckman, Isaac
(Encyclopedia)Beeckman, Isaac bākˈmən [key], 1588–1637, Dutch physicist. An early proponent of mathematical reasoning and experimental verification in natural philosophy, he contributed to the modern conceptio...Clarke, Samuel
(Encyclopedia)Clarke, Samuel, 1675–1729, English philosopher and divine. His chief interest was rational theology, and, although a critic of the deists, he was in sympathy with some of their ideas. He supported t...Boscovich, Ruggiero Giuseppe
(Encyclopedia)Boscovich, Ruggiero Giuseppe ro͞od-jāˈrō jo͞ozĕpˈpā bôsˈkōvēch [key], 1711–87, Italian mathematician, astronomer, and physicist. He became a Jesuit and taught at Rome, Pavia, and Milan. ...Browse by Subject
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