21- Cm Radio Waves Allow Us to Map the Distribution

question 54

True/False

21- cm radio waves allow us to map the distribution of hydrogen in spiral arms on the opposite side of the Galaxy.

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Definitions:

1952

The year 1952, significant for various historical events including the U.S. presidential election where Dwight D. Eisenhower was elected President.

Quota System

A method for controlling immigration or trade by allocating specific limits to certain groups or countries.

Immigrants

People who move to a country other than their native one to live, often in search of better living conditions, employment, or to escape conflict.

Freedom

The power or right to act, speak, or think as one wants without hindrance or restraint.