Tuesday, December 06, 2005

YES, IT IS ROCKET SCIENCE, ACTUALLY

ONE of the most
popular 'applications'
for Coriolis is
in ballistics.



Holy Moses! Give me a break! Space Speeds (rotation-derived linear velocities of specific geographic locations) are not, never have been, and never will be a part of the PHYSICS of Earth-surface motion.

If you fire the biggest ICBM you can imagine on a due North azimuth, Coriolis hypothesized that Earth's rotation would cause the trajectory to curve, relative to fixed geographical points. Similarly, many otherwise sane and sober Physicists assure us that Earth's eastward rotation must be included in calculating the ballistics of launching rockets into Earth orbit. Horse manure.

Orbit is achieved by attaining sufficient horizontal velocity to escape the gravitational force of the gravitational field we fondly refer to as 'Earth'. It is PHYSICALLY irrelevant from what latitude you launch, or along what azimuth. Any geodesic will do as well as any other. It's all about the horizontal velocity. And between standing still and reaching that orbit velocity, your rocket will continue to faithfully rotate, every second, every meter, as every well behaved particle of any gravitational field will, exactly in synch with its gravitational field.

Physics and Coriolis ought never be mentioned on the same page.

0 Comments:

Post a Comment

<< Home