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mathematician
I've been a research mathematician for 20 years and have passed the PhD quals in physics.
What is the most important concept in your religion?
What one concept is the basis of your religion? Why do you believe it? What would you do if you found it was false?
27 AnswersReligion & Spirituality1 decade agoPlay album in order of tracks?
Is there a way to automatically play albums in the order of track number in Yahoo! Music Jukebox?
Yahoo Music1 decade agoWhere do people get the idea that rotation is needed for gravity?
Many people on this site seem to think that an object has to be spinning before it can have a gravitational effect. I am curious where they get this (obviously false) idea. Where is the educational system going wrong?
12 AnswersAstronomy & Space1 decade agoArea of this triangle?
Challenge problem:
Consider the polynomial
(x-7)(x-24)(x-25)-19
Construct a triangle whose sidelengths are the roots of this polynomial. What is the area of the resulting triangle? Justify your answer.
7 AnswersMathematics2 decades agoIntegral identity?
Here's one inspired by a question of Eulercrosser:
Evaluate
int [exp(-ax)-exp(-bx)]/x dx
where a,b>0 and the integral goes from 0 to infinity.
4 AnswersMathematics2 decades agoWhat does it mean to exist?
If I claim that an invisible unicorn exists in my room, why do you disbelieve? What does it take for something to exist? Don't use words like 'to be, is' or other conjugations of the word 'exist' since that is simply circular.
11 AnswersReligion & Spirituality2 decades agoDollar cost averaging versus all at once?
If I get a large sum of money, and want to put it into a stock index fund, is it better to put it all in at one time or to use dollar cost averaging over a period of time? If the latter, what period of time?
4 AnswersPersonal Finance2 decades ago