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- From: wsadjw@rw7.urc.tue.nl (Jan Willem Nienhuys)
- Newsgroups: sci.physics,sci.math
- Subject: Exam anecdote (was Re: Why no Nobel Prize in Math?)`
- Message-ID: <6776@tuegate.tue.nl>
- Date: 2 Jan 93 12:20:28 GMT
- References: <1i1qs8INNrfi@mtha.usc.edu> <1993Jan1.201815.18409@news.vanderbilt.edu> <1993Jan2.013607.29530@mcshub.dcss.mcmaster.ca>
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- Followup-To: sci.physics
- Organization: Eindhoven University of Technology, The Netherlands
- Lines: 30
-
- In article <1993Jan2.013607.29530@mcshub.dcss.mcmaster.ca> riehm@maccs.mcmaster.ca (Carl Riehm) writes:
- >
- >Reminds me of a recent anecdote:
- >A is back at his alma mater (in the version I heard, it was Stanford) for his
- >20th anniversery after his PhD. Professor B has put on display questions from
- >the most recent PhD qualifying exam. A opines to Professor B: "Hey those are
- >the same questions on my qualifying exam over 20 years ago!" Professor B
- >counters with "Aha but we've changed the answers!".
-
- A similar anecdote I heard about the late Hans Freudenthal. His oral exam
- on the subject of geometry always started like this:
- Given 5 points in the plane (in general position) and a line through one
- of them. Through these 5 points there will be a unique conic. The line
- will intersect this conic in one more point. Construct that point.
- After this the question would be to do it (just by ruler) if the given
- line did not pass through the point. After the answer "impossible", he
- would ask which extra data would be needed then. After the correct answer
- that with a single given conic (a circle for instance) it would be possible,
- he would ask the candidate to show how then. And so on.
- On the day I took the exam, somewhere in 1964 or 1965 I guess, two of my
- friends took the same exam. Afterwards we compared notes, and he had
- asked us all the same things the first quarter or so.
- We didn't know at that time that many years before that, someone had said
- to F. that he shouldn't always ask the same questions. To which he
- replied: "Well, the questions are the same, but I vary the answers."
-
- I conjecture that this professor's joke goes back to the previous
- century.
-
- JWN
-