Sea Shell Data

If you have a problem with making measurements on the shell picture, you may use the data in the table below, which were measured on a printed copy of the picture. The polar angle theta is Count times pi/4. The radial measures r are in milllimeters. To return to the module, close this window.

Count r (mm) Count r (mm)
0 5 10 19
1 6 11 21
2 7 12 24
3 8 13 27
4 8 14 31
5 9 15 37
6 11 16 44
7 13 17 51
8 15 18 58
9 17