protraction

What Precautions Should Be Taken While Using Sine Bars?

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What Precautions Should Be Taken While Using Sine Bars? Precautions in use of sine bars. What is a protractor used for? Geometry Why is it called a protractor? protractor (n.) 1610s, “one who lengthens (an action),” Modern Latin agent noun from Latin protrahere “to draw forward” (see protraction). Medieval Latin protractor meant “one who calls

What Do We Mean By Retraction?

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What Do We Mean By Retraction? The Oxford English Dictionary (2018) defines retraction as “the action or fact of revoking or rescinding a decision, decree, etc.” A more thorough definition is, “the action of withdrawing a statement, accusation, etc., which is now admitted to be erroneous or unjustified… … Identifying retracted articles. What is an