Timeline for Looking for an interesting problem/riddle involving triple integrals.
Current License: CC BY-SA 2.5
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 11, 2010 at 8:04 | comment | added | Tracy Hall | I remember in high school trying (without success) to convince one of the engineers where I worked that specifying a quarter-round at the corner in each of the $X$, $Y$, and $Z$ directions of a blueprint was not technically the same (rather, only by convention) as putting a section of sphere there--that if you just cut along the projections, there would still be a distinct (if blunt) corner. | |
| Aug 11, 2010 at 3:36 | comment | added | Tracy Hall | @André: It actually works to integrate, as a function of radius, the surface area, whose smooth pieces come from cylinders cut by planes of symmetry and therefore unroll to sine curves. | |
| Aug 10, 2010 at 20:02 | comment | added | André Henriques | @Xandi or @JHS: Since I don't feel like committing suicide, can one of you give me the best method for solving the problem? | |
| Jun 3, 2010 at 7:50 | comment | added | Xandi Tuni | If somebody knew in which number this appeared- I am interested. | |
| Jun 2, 2010 at 22:18 | comment | added | José Hdz. Stgo. | I remember seeing an elementary solution of this one in a certain installment of the famous Scientific American column by the late Martin Gardner. | |
| Jun 2, 2010 at 18:38 | history | answered | Xandi Tuni | CC BY-SA 2.5 |