The Balloon Flight of Hess

a) Copy and complete the data chart on this page

b) Make a graph of altitude (x-axis) vs average count rate per minute (y-axis)

c) Each data point should include error bars. To calculate the size of an error bar, take the square root of counts per minute for a particular data point.

d) Describe any trends you see in the graph.

e) Which part of this graph would NOT have been a surprise for Hess ?

f) Which part of the graph represented something NEW, worthy of a Nobel Prize ?

g) Why does the graph show this shape ?

h) Why do the 2 detectors show different counts ?

i) How were these data collected ? Name the device, and explain how it works....

j) How did Hess collect HIS data ? Name the device, and explain how it works.