The travel velocity of these two wave types is not the same (P-waves are faster than S-waves). Thus, if there is an earthquake somewhere, the first waves that arrive are P-waves. In essence, the gap in P-wave and S-wave arrival gives a first estimate of the distance to the earthquake.
With the mysterious U.S. Senator Eddie Morra (Bradley Cooper) providing him with a second drug to counteract NZT's deadly side effects, Brian uses his enhanced abilities to help FBI agent Rebecca Harris (Jennifer Carpenter).
Chandra Danette Wilson is an American actress, known for her role as Dr. Miranda Bailey in the ABC television drama Grey's Anatomy since 2005, for which she has been nominated for the Emmy for Best Supporting Actress four times. She made her New York stage debut in 1991 and began to land guest spots on a variety of prime-time television shows. She made her first film appearance in the 1993 film Philadelphia.