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The horizontal fraction bar was introduced by the Arabs.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Managing large bands of grazing animals requires detailed knowledge of local landscapes, especially Managing large bands of grazing animals requires detailed knowledge of local landscapes, especially
Age and Grammatical Knowledge The challenge of learning a second language rises with age. Source: J Age and Grammatical Knowledge The challenge of learning a second language rises with age. Source: J
Many ideologies stem from older theories. The ideas of the philosophers are simplified. Ideologies Many ideologies stem from older theories. The ideas of the philosophers are simplified. Ideologies
Environment of tRNAs at the ribosome as determined by cross-linking Environment of tRNAs at the ribosome as determined by cross-linking
Self-esteem for Grade 3 and 4 children in Harter\'s studies Self-esteem for Grade 3 and 4 children in Harter\'s studies
The gas division of Power-U-Up plans to introduce a new gas delivery system based on the ... The gas division of Power-U-Up plans to introduce a new gas delivery system based on the ...
Video: What is Reverse Osmosis?

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