Seismic
p
The waves that are slower that those that originate at the focus are called secondary waves or S-waves. They are shear waves that are transverse in nature.
Seismic waves are the earths crust vibrating. there are two types of waves P-waves and S-waves (Primary and Secondary) Primary waves travel faster than s waves and can travel through solid and liquid, S-waves can only travel through solids
Any lens (other than those used exclusively for close up work) can focus on infinity, which is simply put, is the distant horizon. Whether or not you can make out the small detail is another matter.
Your timing belt has probably worn out, or broken, and has jumped timing.
Rock under stress breaks at the focus, releasing energy and vibrations called seismic waves, which travel away from the focus, through Earth's interior, and across the surface. The three types of seismic waves are: Primary waves: The first to arrive at seismographs Secondary waves: The second to arrive at seismographs Surface waves: The last and most severe to arrive at seismographs
p waves
P-waves, which may also be known as primary (as they arrive travel faster than other types of seismic waves and so are recorded on a seismometer first) or pressure waves as they propagate by the compression of matter.
These waves are slower than those that originate at the focus.
Surface wave
The waves that are slower that those that originate at the focus are called secondary waves or S-waves. They are shear waves that are transverse in nature.
S waves shear rock back and forth as they travel through it.
where the fault is at or the epicenter which is not where the earthquake starts it is the focus where the earthquake starts
If you want to know what the name is, it is called the epicenter. If you want to know a location where all earthquakes originate, there isn't one. Earthquakes can occur along faultlines, or in the middle of a continent.
State three ideas or topics that could serve as the focus of subject matter in an artwork.
Seismic waves are the earths crust vibrating. there are two types of waves P-waves and S-waves (Primary and Secondary) Primary waves travel faster than s waves and can travel through solid and liquid, S-waves can only travel through solids
"Matter" is a possibility.
Focus an energetic wave at some matter and see what happens.