the.com/elliptical
the machine that lets you run nowhere forever without your knees filing a complaint
orbit originNamed for orbits, where planets trace ellipses not circles
knee saverZero impact, unlike running's body-weight pounding
1990s babyInvented in the early 90s, surprisingly recent
focus pointsEvery ellipse has two foci, not one center
galaxy shapeElliptical galaxies hold the universe's oldest stars