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Author Question: In studying why middle-class couples had moved to the suburbs, Bell found that all but one of the ... (Read 46 times) |
Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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).
In 1864, the first barbiturate (barbituric acid) was synthesized.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.