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How does the air pressure in a football helmet affect cushioning?
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The hypothesis is accepted because as the air pressure in the padding of the helmet increases, the force of impact decreases.
What other material is suitable to be used as a simulation of the human head?
Should a barometer be used in this experiment?
What if different weights were used? How would the results differ?
http://www.ehow.com/how_5175645_measure-atmospheric-pressure.html
Be careful to keep clear of the falling weight.
