640 



GLOSSARY 



W Weight of explosive charge (lb) 



R Distance of center of explosive from surface (ft) 



Pjj Peak pressure (lb/ln.2) 



Vq Dome velocity (ft/sec) 



Velocity of propagation of shock wave (ft/sec) 



yo Initial density of water (lb/ft3) 



F Indicates observations on Fastax motion picture camera 



S Indicates observations on General Radio "streak" camera 



n Number of observations In a group 



cT-^ Deviation of a single observation from the mean of the group 



^TN Standard deviation of a single observation from the mean 



(n- 1) 

 (pt Standard deviation of the mean of a group of observations 



T Tension necessary to rupture water (lb/in. 2) 

 ')S Surface tension (dynes/cm) 



u Particle velocity (ft/sec) 



-vi- 



