Contents
12 March 1965
Vol 147, Issue 3663
Vol 147, Issue 3663
Contents
Oscilloscope trace generated by analog computer (PACE TR-10). The computer was programmed to simulate the spiral growth common in mollusks and othe invertebrates. By varying the input constants, it is possible to examine the spectrum of geometricaly possible shell forms, including those that do not occur naturally. See page 1294.