presented the steps of a nonlinear mathematical procedure for obtaining, from elevation measurements in the field (and in the laboratory), the nonlinear

orbital velocity in directional seas, including the effect of a current;

By calculating a planet's

orbital velocity in a circular orbit, they could then estimate a transit's duration -- how long a planet would take to cross in front of a star.

The intense laser beam focused on the debris will produce high-velocity plasma ablation, and the reaction force will reduce its

orbital velocity, leading to its reentry into the earths atmosphere.

Physical meaning of critical energy is that the ion laboratory velocity is greater than the

orbital velocity of the electron in hydrogen atom.

The

orbital velocity of the Moon is approximately 1000 meters/sec.

To obtain the

orbital velocity necessary to reach its comet target, the Rosetta spacecraft took advantage of four gravity assists (three from Earth, one from Mars) and an almost three-year period of deep space hibernation, waking up in January 2014 in time to prepare for its rendezvous with 67P/Churyumov-Gerasimenko.

But by studying how the starlight shifted as it passed through the atmosphere of exoplanet HD 209458b (illustrated), Dutch researchers found the planet's

orbital velocity.

Earth is a great place to pick up

orbital velocity.

It is not sufficiently powerful to reach

orbital velocity on its own so has to be launched by a rocket.

Orbital velocity keeps space objects from being pulled in by gravity from a larger body such as the Sun.

Highlights include file footage of Sergei Korolev, designer of the R-7 rocket that launched Sputnik, and a lucid illustration of Isaac Newton's concept of

orbital velocity.

The second and third stages separated successfully and the missile reached

orbital velocity, but the attempt failed because the third-stage booster malfunctioned.