how did scientist study the interior of the earth?

Question

was it seismic waves etc? please help.ü

Answer 1

In Geology, as in other sciences, there are basically two paths to discovery:
1. Direct observation
2. Indirect observation

What you do with what you discover determines whether you are a philosopher, a mystic, or a scientist.

The philosopher Aristotle said that men and women had different numbers of teeth. I suppose he had observed a difference or two and from this derived a logical conclusion that supported his conclusion. This is not scientific.

A Chinese astrologer, or mystic, noted historical coincidences between the appearances of comets and unlucky events on Earth. From this there is the Chinese tradition that comets bring bad luck. This is not scientific.

A scientist discovers something and guesses about the truth of it. Then he follows the scientific method:
From physics.ucr.edu:
# 1. Observe some aspect of the universe.
# 2. Invent a tentative description, called a hypothesis, that is consistent with what you have observed.
# 3. Use the hypothesis to make predictions.
# 4. Test those predictions by experiments or further observations and modify the hypothesis in the light of your results.
# 5. Repeat steps 3 and 4 until there are no discrepancies between theory and experiment and/or observation.

To study geology, one observes - directly and indirectly - the Earth. Direct observation can see all parts of the Earth to a fair - in human terms - depth. Various kinds of rocks can be discovered. Processes can be seen which explain how rocks were formed.

At each step of direct observation the scientist follows the Scientific Method.

Indirect methods include imaging techniques such as sonar, radar, magnetic, gravity and satellite imaging.

All the observations - direct and indirect - are used to test predictions or define further observations which might modify the hypothesis. Along the way, the scientific method produces a lot of truth.

;-D The scientific method is really an unending process in search of truth.

Answer 2

Orbital behaviour of the moon and artificial satellites give a good idea of the mass of the Earth.
Measuring the behaviour of seismic waves and any retardation as they pass through the Earth gives information as to the makeup of the interior.

Answer 3

while an earthquake happens the waves propagate during the Earth. some waves are distinctive from others and, as an occasion, won't propagate by a liquid. via analyzing which forms of waves are gained from earthquakes around the realm and via analyzing the time delays and such, scientists can build a variety for the interior the Earth.

Answer 4

1) Geophysics (seismic waves, etc.)
2) Xenothihs in volcanic eruptions
3) Meteorites from "Earth-like" plantes

Answer 5

yes they use sesmic waves for the study.