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Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
Some ignition coils are electrically connected, called married (top figure), whereas others use ...
A thin cleft, called the synapse, separates one cell from another.
Psychology experiment