Found only in men, the prostate is a walnut-sized gland that grows throughout a manâs life and may eventually interfere with or prevent urination by blocking the urethra. The prostate makes a significant contribution to the production and ejaculation of semen during sexual intercourse.
Wave usually refers to a continuous disturbance. Like if you grab hold of spring and shake it back and forth a lot. Pulse, on the other hand, often refers to some type of one-time disturbance. Like shaking the spring only once.Of course there will be overlap or ambiguities in these terms. I doubt there's any agreed-upon precise definition of these.ulse, on the other hand, often refers to some type of one-time disturbance. Like shaking the spring only once. Of course there will be overlap or ambiguities in these terms. I doubt there's any agreed-upon precise definition of these.
P and S waves. A wave is a vibration that transfers energy from one place to another without transferring matter (solid, liquid or gas). Light and sound both travel in this way. Energy released during an earthquake travels in the form of waves around the Earth. Two types of seismic wave exist, P- and S-waves. They are different in the way that they travel through the Earth. P-waves (P stands for primary) arrive at the detector first.