steady as she goes! meaning, steady as she goes! definition | English Cobuild dictionary. steady. 1 adj A steady situation continues or develops gradually without any interruptions and is not likely to change quickly. Despite the steady progress of building work, the campaign against it is still going strong...
Seismic waves are divided into two types: Body waves and surface waves. Body waves include P and S waves, and these are the two types of waves that are used to determine the internal structure of the Earth. (There are other types of seismic waves, but they relate to surface damage and only travel through the Earth s crust, not the entire Earth. If you are interested though, there is a short activity to show you what they are and how they move.
Because of the size of these plates, earthquake waves carry huge amounts of energy. In this lesson, we discussed four types of seismic waves: P-waves, S-waves, Rayleigh waves and Love waves. The first two are body waves, the latter two are surface waves. Love waves cause the most damage and P-waves the least. Thanks to our study of seismic waves, we have a better idea of what to expect when an earthquake hits. Through this knowledge and better preparation, we can save both property and human lives.