The Realization That Earth Was a Sphere

question 52

Multiple Choice

The realization that Earth was a sphere

• A)had to wait until the modern era (1800s).
• B)did not occur in Europe until the first voyages of Columbus.
• C)was first made by Pythagoras,580-500 B.C.
• D)was made by Isaac Newton.

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Definitions:

Control Voltage

The voltage used in a control circuit which commands the operation of electrical devices.

Digital Input

An input signal to a device or system that takes the form of binary (0 or 1) data, used in electronic devices for configuring or controlling operations.

Selector Switch

A control switch that allows the user to select between multiple settings or circuits.

Digital Input

An input signal or data that can take on only specific discrete values, commonly used in digital electronics.