Ainda não temos significados para "point particle".
1If you assume that the person is a point particle, you could calculate the jump height.
2The strings are very tiny-tinyenough to pass for point particles.
3If the fundamental objects in the universe are strings, what are the point particles we seem to observe in our experiments?
4This time it came out hard, bringing out with its point particles of grayish-black earth, and the boy gave a low, shrill yell.