What Method Was Used to Discover Pluto in 1929-1930

question 17

Multiple Choice

What method was used to discover Pluto in 1929-1930?

• A) look at irregularities (wobbles) in the motions of Uranus and Neptune
• B) use one of the first radio telescopes to measure cold radio waves from Pluto
• C) look for patterns in the orbits of the moons of Neptune to see in which direction Pluto would have escaped
• D) take pairs of photographs several days apart and "blink" them
• E) you can't fool me; Pluto was discovered by Galileo through one of his first telescopes

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Definitions:

Organic Product

A compound that results from organic reactions, often characterized by the presence of carbon atoms bonded to hydrogen, oxygen, or other carbon atoms.

Major

Referring to the primary or most significant product, outcome, or component in a mixture or reaction.

Stereochemistry

The examination of how atoms are spatially organized within molecules and how these layouts influence the molecules' physical and chemical characteristics.

Organic Product

Substances that result from organic chemistry reactions, often characterized by their carbon-based structure.