You Are Using a Piece of String and Two Tacks

question 44

Essay

You are using a piece of string and two tacks to draw ellipses on a piece of paper. How can you draw two ellipses with the same semi- major axes but different eccentricities? How can you draw two ellipses with the same eccentricity but with the semi- major axis of one double the other?

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Definitions:

Depression

A common, serious medical illness that negatively affects how you feel, the way you think, and how you act, marked by persistent feelings of sadness and loss of interest.

Connective Tissue

The type of biological tissue that supports, connects, or separates different types of tissues and organs in the body.

Muscles

Tissues in the body composed of fibers that have the ability to contract, thereby producing movement or maintaining the position of parts of the body.

Nerves

Bundles of fibers transmitting impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs.