The Mechanical Adding Machines of Pascal and Leibniz Were Not

question 50

Multiple Choice

The mechanical adding machines of Pascal and Leibniz were not widely adopted because

• A) they were too expensive.
• B) there were unreliable.
• C) they were too difficult to program.
• D) they could not handle fractions.
• E) bookkeepers successfully lobbied the King, and he made the machines illegal.

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Definitions:

Force

A physical quantity that causes a change in the motion, shape, or direction of an object.

Heart Contracts

The process where the heart muscle tissue contracts to pump blood through the body.

Diastolic Pressure

The lower number in a blood pressure reading, representing the pressure in the arteries when the heart rests between beats.

Systolic Pressure

The pressure in the arteries when the heart beats and fills them with blood; the first number in a blood pressure reading.