
Two
kinds of passionflower (Passiflora) are climbing on our
Grabov Rat cottage.


Have
you ever wondered if anything new in math is left to nowadays
mathematicians?
When
Stan Ulam gave a talk at the Institute for Advanced Study on the
twentyfifth anniversary of the computer, he made a mental
calculation of the number of theorems published yearly in
mathematical journals and threw out the number 100 thousand.
"The audience gasped", Ulam recalled. "The next day
two of the younger mathematicians in the audience came to tell me
that impressed by this enormous figure they undertook a more
systematic and detailed search in the Institute library. By
multiplying the number of journals by the number of yearly issues,
by the number of papers per issue, and the average number of
theorems per paper, their estimate came to nearly two hundred
thousand theorems a year. Such an enormous number should certainly
give food for thought... If the number of theorems is larger than
one can possibly survey, who can be trusted to judge what is ‘important’?"
"Today
upwards of a quarter million theorems are published a year",
said Graham.
Paul
Hoffman: The man who loved only numbers, The story of Paul Erdös
and the search for mathematical truth, Hyperion, New York, 1998.

