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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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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

The First Letter Technique The First Letter Technique
Vincent van Gogh, Letter to John Peter Russell. Vincent van Gogh, Letter to John Peter Russell.
Business Letter Format and Example. Business Letter Format and Example.
Given the parent function f(x)=log10(bottom exponent)x, state the equation of the function that Given the parent function f(x)=log10(bottom exponent)x, state the equation of the function that
Identify the variable representing each described quantity in the equation Identify the variable representing each described quantity in the equation
The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ... The line with the equation y=5x+12 intersects the parabola with equation y=xsqared+7x-3 at the ...
Video: Peptide Bond Formation Animation

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