If people who are aroused by watching rock videos are then insulted, their feelings of anger will be greater than those of people who have been similarly provoked but were not previously aroused. this is best explained by the:

If people who have just been aroused by watching rock videos are then insulted, their feelings of anger will be greater than those of people who have been similarly provoked but were not previously aroused. This is best explained by the
  two-factor theory

Echosounders

This method of seafloor mapping is called echosounding. Echosounders can use different frequencies of sound to find out different things about the ocean.