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Author Question: Some scopes and graphing scan tools can display multiple channels. (Read 2632 times) |
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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.