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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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The FDA recognizes 118 routes of administration.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Point Sources of Pollution Point Sources of Pollution
The left-hand rule states that if a coil is grasped with the left hand, the fingers will point in ... The left-hand rule states that if a coil is grasped with the left hand, the fingers will point in ...
(A) Thumb slides above upper lip; to begin, fingers are placed near the ears, and thumbs begin at ... (A) Thumb slides above upper lip; to begin, fingers are placed near the ears, and thumbs begin at ...
Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1 Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1
Emerson’s Three-Point Test-Cross Analysis Emerson’s Three-Point Test-Cross Analysis
Constructing a Three-Point Recombination Map Constructing a Three-Point Recombination Map
Video: Nucleic acid digestion - brush border enzymes, end products & transport mechanism

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