“universal gravitation”簡單造句，universal gravitation造句子

The universal gravitation field is described by imaginary number in the paper. It's energy density is negative real number. And it accord with conservation of energy.

Can you explain what the law of universal gravitation is ?

For centuries Isaac Newton's law of universal gravitation worked well enough to explain gravity on Earth.

Newton's law of universal gravitation has been extremely useful.

"Universal gravitational field intensity" and "gauss theorem of the universal gravitational field";

N-body problem is a problem researching on the universal gravitation between celestial bodies, this problem belong to the category of parallel calculation.

Newton's law of universal gravitation is valid.

Newton invented calculus, described the law of universal gravitation and built the first reflecting telescope.

The law of universal gravitation helps us predict accurately the orbit of a spacecraft .