Why Do Astronomers Speak in Terms of Redshifts Rather Than

question 105

Essay

Why do astronomers speak in terms of redshifts rather than distances to faraway objects?

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Definitions:

NPN-Type Transistor

A semiconductor device used to amplify or switch electronic signals, made from a layer of P-type material between two layers of N-type material.

DMM

Digital Multimeter, a test tool used to measure two or more electrical values—primarily voltage (volts), current (amps), and resistance (ohms).

Continuity

Used to describe the status of an electrical connection or circuit with little or no resistance to current flow. Checked by using an ohmmeter.

Generic Handheld EST

A portable electronic service tool used for diagnosing and troubleshooting various machinery and equipment.