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Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...
Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: If each box of a brand of cereals contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be ...
Ascher Herman Shapiro (May 20, 1916 – November 26, 2004) was a professor of Mechanical Engineering at MIT. He grew up in New York City. He grew up in New York City. Early life and education [ edit ]
Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.
Meyer Schapiro (23 September 1904 – 3 March 1996) was a Lithuanian-born American art historian known for developing new art historical methodologies that incorporated an interdisciplinary approach to the study of works of art. An expert on early Christian, Medieval, and Modern art, Schapiro explored art historical periods and movements with a ...
As of 2010, 90.2% (10,710,239) of Pennsylvania residents age five and older spoke English at home as a primary language while 4.1% (486,058) spoke Spanish, 0.9% (103,502) spoke German including Pennsylvania Dutch, and 0.5% (56,052) spoke Chinese, which includes Mandarin of the population over the age of five.
Ration stamps for sugar, buckwheat, vegetable oil, rice, and pasta, provided by the Artsakh government in January 2023. A ration stamp, ration coupon, or ration card is a stamp or card issued by a government to allow the holder to obtain food or other commodities that are in short supply during wartime or in other emergency situations when ...