Briefly Explain the Four Different Observational Methods We Use to Detect

question 52

Essay

Briefly explain the four different observational methods we use to detect extrasolar planets. Which has detected the largest number of extrasolar planets to date?

---

Definitions:

Homeopathy

A 200-year-old system of medicine based on the Law of Similars. This means that if a dose of a substance can cause a symptom, that same substance in minuscule amounts can cure the symptom.

Law of Similars

A principle in homeopathy suggesting that substances causing symptoms in healthy people can treat similar symptoms in sick people.

Symptom

A physical or mental feature that is regarded as indicating a condition of disease, particularly such a feature noticed by the patient.

Substance

Material with particular physical characteristics or chemical composition.