The First Attempt to Map the Galaxy Via Star Counts

question 156

Multiple Choice

The first attempt to map the Galaxy via star counts was done by

• A) Edwin Hubble with the new 100" Mt. Wilson telescope in the 1930s.
• B) Harlow Shapley with the RR Lyrae variables in 1920.
• C) William Herschel in the late eighteenth century.
• D) Edward Barnard with long exposure photos about 1900.
• E) Galileo in 1612.

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Definitions:

Marginal Cost

The cost associated with producing one more unit of a product, reflecting how production costs change with output levels.

Average Cost

The total cost of production divided by the number of units produced, often used to calculate the cost per unit.

Total Surplus

The overall net benefit to society, calculated as the sum of consumer surplus (benefits to consumers) and producer surplus (benefits to producers) from a transaction.

Monopolist

An entity that is the sole provider of a particular good or service in a market, often characterized by their ability to influence pricing and availability.