DERIVE

late 14c., “descend from”

from Old French deriver “to flow, pour out, originate”

from Latin derivare “to lead or draw off (a stream of water) from its source”.

.

DERIVATIVE in mathematics

Rate of change of a function with respect to a variable.

Way to show instantaneous rate of change.

[...] function that can be used to predict the behaviour of the original system under diverse conditions.

.

DERIVATION in linguistics

The change of a word's meaning by adding/subtracting to it.

UPRIGHT (adj.)

.

As an adverb, Old English uprihte. As a noun, 1560s in the sense a vertical front;” c. 1700 as “a vertical timber in framing;” 1742 in the sense “something standing erect.” Meaning “an upright piano” is from 1860.

.

Sense of “wholeness, perfect condition” is mid-15c.; that of “soundness of moral principle and character; entire uprightness or fidelity, especially in regard to truth and fair dealing” is by 1540s.

Constitution:

.

I. Equality under gravity

II. Ma’Pumila is an absolutly egalitarian place

a. Earths’s acceleration affects all humans in the same way

b. The human anatomy requires alternation of gravitational intensity

c. Gravitational gradient therefore leads to urban nomadism

MALUS PUMILA

.

Malus Pumila or the Flower of Kent is a green cultivar of cooking apple. According to the story, this is the apple Isaac Newton saw falling to ground from its tree, inspiring his laws of universal gravitation.

gravity (n.)

c. 1500, “weight, dignity, seriousness, solemnity of deportment or character, importance,” from Old French gravité “seriousness, thoughtfulness” (13c.) and directly from Latin gravitatem (nominative gravitas) “weight, heaviness, pressure,” from gravis “heavy” (from PIE root *gwere- (1) “heavy”).