Finding the cause of the Moon leaving the Earth is the first key to open the door of cosmic galaxies.Although some people believe the cause of the Moon leaving the Earth to be the tidal bulges on the Earth exerting a ...
According to the classical mechanics the energy of a celestial body circulating in the solar system is a constant term. This energy is defined by the masses product of the larger and smaller body entering into a mutua...
Supported in part by the National High-Tech Research and Development Program of China ("863" Project) (Grant Nos.2007AA12Z216,2007AA120502);the National Natural Science Foundation of China (Grant Nos:40701134,40629001)
"How do the rescue helicopters find out an optimized path to arrive at the site of a disaster as soon as possible?" or "How are the flight procedures over mountains and plateaus simulated?" and so on.In this paper a s...