5. ď‚— a conic consists of those points whose distances to
some point, called a Focus, and some line, called a
Directrix, are in a fixed ratio, called the
Eccentricity.
F1, F2, F3 - FOCUS
6. ď‚— The eccentricity of an
ellipse is greater than
zero but less than 1.
ď‚— The eccentricity of a
parabola is 1.
ď‚— The eccentricity of a
hyperbola is greater than
1.
7. ď‚— A parabola is
approximately U-
shaped when oriented
as shown in the
diagram, but which
can be in any
orientation in its
plane.
8. ď‚— trajectory of a particle or
body in motion under
the influence of a
uniform gravitational
field.
11. “ The orbits along which
the planets travel around
the Sun are ellipses with
the Sun at one focus ”
- JOHN KEPPLER
12. ď‚— In bicycles, two elliptical
gears may be used for
mechanical advantage to
produce variable angular
speed or torque.
13. ď‚— A hyperbola has two
pieces, called connected
components or branches,
that are mirror images of
each other and resemble
two infinite bows.
ď‚— If the plane intersects
both halves of the double
cone but does not pass
through the apex of the
cones then the conic is a
hyperbola.
14. ď‚— Developing a Reference
Model for Networked
Flexible Work through
Industry Trials
The Hyperbola of
Synchronization