What was Ruby Goldberg purpose for creating the invention to self operating napkin

They were built purely for the joy of engineering and watching science in action. Goldberg's work has inspired millions. People love building their own complex machines to carry out simple, mundane tasks. Today, people even hold Rube Goldberg machine contests.

Explanation: Hopes this helps

compare & contrast informative essay/speech

when speaking or writing for the sole purpose of providing information in order to give audience members a good basis for making a decision, you would present an informative speech or essay.   because you wouldn’t want to be persuading the audience by arguing for one type of exercise over the other, you wouldn’t choose a persuasive/argumentative technique.   to fairly, and without bias, present information about the pros and cons of each type exercise, a compare/contrast, informative speech/essay would be the best bet.

the answer is c because info security should not use them for code