


This is a closed book examination.
1. Show that you know a little about number systems by performing the following long division 12) 30 [unreadable] in binary and in duodecimal number form. T and E may be used as the extra symbols for ten and eleven in the duodecimal system.
2. Suppose that an axon 60 cm. long conducting at 30 meters/second constituted the principal delay in a sensitive biological feedback system which was so polarized as to be basically negative in feedback and thus tending toward stability. What would be the lowest frequency at which you might reasonably expect this system to show instability?
3. Enumerate as many as you can of the characteristic “muscle events” which were discussed in class or which you know from your reading identifying each briefly but specifically and give the approximate time characteristics of this event as exemplified in a frog sartorius muscle at room temperature after brief adequate stimulation.
4. In one sentence epitomize the major scientific contribution which you associate with each of the following names and give a date which you think represents the time at which the researches were being brought to fruition. Also try to give the individuals first names or initials.
a) Cannon
b) Hill
c) Rosenblith
d) Rosenbluth
e) Romond
f) Huxley
g) Cherry
h) Sandow
i) Szent-Gyorgyi
j) Shannon