Recent content by l470594464

if we paint rainbow's color on a circle top and rotate it,wecan see color white. that means our eyes have a time limit to distinguish different colors.

Well, the first page's jokes are really hard to understand,though I'm Chinese...

Use the formula:\Delta\vec{A}=\nabla(\nabla\bullet\vec{A})-\nabla\times(\nabla\times\vec{A}). You'll get three Laplace equation about P,Q,R.Assume \vec{A}=(P,Q,R).\Deltameans twice \nabla.

Now none of the theories include negative mass so if negative mass exists, there must be new theories.who cares.Let's wait for it.

NO comment...

Maybe you'd better learn the Maxwell's equation first to see how light's speed comes from and why it travels slower in some media.Wikipedia is not science book. lol

It's hard to answer.Actually physics is to solve how it could be not why it is.You can keep asking what causes something to cause gravity.so maybe you can put forward a theory to explain it by yourself.