most economical path (though not the shortest or fastest) for a spacecraft to take from one planet to another. The German engineer Walter Hohmann ... [1 related articles]
Found on
http://www.britannica.com/eb/a-z/h/60
Also known as a Hohmann transfer orbit, an elliptical trajectory, named after Walter Hohmann, along which a spacecraft may move from one orbit to another with the minimum expenditure of energy. Such an orbit just touches the original and destination orbits, and may be used for changing the orbit of ...
Found on
http://www.daviddarling.info/encyclopedia/H/Hohmann_orbit.html
No exact match found.
