The size and direction of these forces determines the movement of the object. Show the forces acting on an object in a free body diagram. The arrows represent the size and direction of the forces ...

in spite of them being allowed by the laws of physics. Sir Arthur Eddington called these classes 'arrows of time'. The present book is devoted to an attempt to understand their origin. The central ...

One possible explanation for this deviation was the existence of a new “dark force” that would interact ... team member Chih-Han Yeh tells Physics World. “In our work, the unprecedented precision of ...