the.com/elliptical

the machine that lets you run nowhere forever without your knees filing a complaint

means Shaped like or relating to an ellipse, or — of speech and writing — so compressed that words are left out, making the meaning oblique or hard to follow.

from From Greek 'elleipsis,' a 'falling short' or 'omission,' built from 'elleipein,' to leave out or come up short ('en-,' in, plus 'leipein,' to leave). Mathematicians borrowed it for the squashed circle whose curve 'falls short' of a true circle, and grammarians for sentences with words missing. The exercise machine is the newest cousin: its pedals trace a stretched, ellipse-like loop, so the name describes the path your feet take while going precisely nowhere.

orbit origin
Named for orbits, where planets trace ellipses not circles
knee saver
Zero impact, unlike running's body-weight pounding
1990s baby
Invented in the early 90s, surprisingly recent
focus points
Every ellipse has two foci, not one center
galaxy shape
Elliptical galaxies hold the universe's oldest stars
for instance

milky way galaxy — our galaxy's shape is elliptical, classified as sa(s)b by astronomers

m87 galaxy — supergiant elliptical galaxy in virgo cluster, 53.5 million light-years away

elliptical orbit of mercury — most eccentric planet orbit in our solar system, varies 46-69.8 million km from sun

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