The first sentence is the first situation that happening in the wheel, that is the wheel is rolling and move with constant speed without any force (Newton's 1st law) and that's means no frictional force, but in the second, there is force in the wheel that makes the wheel move more slower or...
Higgs bosson as we know is responsible to giving particles mass, mass is responsible for the gravity. So I think higgs bosson can be used to manipulated gravity. If we can made the device that can manipulate gravity using higgs bosson, can we make 4 dimensional space? can we make the real...
Hi, my real name is Alex, I'm 20 years old, I'm joining here because I'm interested to learn physics and I want to discuss with someone about physics. :)