"I am accustomed, as a professional mathematician, to living in a sort of vacuum, surrounded by people who declare with an odd sort of pride that they are mathematically illiterate." David Mumford

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Which of these is the fastest? ...

Top speed of an ostrich ...

Top speed of a France's Train de Grande Vitesse (TGV) ...

Speed of a commercial airliner ...

Fastest speed attained by a manned rocket sled ...