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metronome

(Encyclopedia) metronomemetronomemĕˈtrənōmˌ [key], in music, originally pyramid-shaped clockwork mechanism to indicate the exact tempo in which a work is to be performed. It has a double pendulum…

Deaton, Angus Stewart

(Encyclopedia) Deaton, Angus Stewart, 1945–, British-American economist, b. Edinburgh, Scotland, Ph.D Cambridge, 1974. He was a professor of econometrics at the Univ. of Bristol, England, from 1976…

Kremer, Michael Robert

(Encyclopedia) Kremer, Michael Robert, 1964–, American economist, b. New York City, Ph.D. Harvard, 1992. After serving as a postdoctoral fellow (1992–93) at the Massachusetts Institute of Technology…

Live Births and Birth Rates, by Year

The following table shows the number of live births and the birth rate in the United States between 1910 and 2005. Year Births1 Rate2 1910 2,777,000 30.1 1915 2,965,000 29.5…

Teen Birth Rates, 1980–2012

According to the Center for Disease Control's National Center for Health Statistics, the birth rate for teenagers aged 15–19 dropped 6% from 2011 to 2012, to 29.4 per 1,000—the lowest rate ever…

Infant Mortality Rates, 1950–2010

The following table lists the infant mortality rates in the United States from 1950 to 2010, according to year, race, and gestation period. Year Deaths…

Divorce Rates by State, 1990-2009

The following table shows the divorce rate per 1,000 people in the United States according to each state from 1990 to 2009. Rates per 1,000…

High School Dropout Rates by Sex

Percentage of Dropouts from 1960–2010 The percentage of high school dropouts, ages 16-24, has declined since 1960. The percentage of male students who dropped out of high…