Physics
 

 
PHYSICS
Physics attempts to formulate a theoretical definition of matter. Modern physics suggests that matter is composed of elementary particles that are hold together with fundamental forces. For this reason physics is referred as “fundamental science” since the natural sciences (chemistry, biology, geology, etc.) deals with particular types of material systems that obey the laws of physics.

BUT PLEASE NOTICE THAT

"We cannot define anything precisely! If we attempt to, we get into that paralysis of thought that comes to philosophers, who sit opposite each other, one saying to the other, 'You don't know what you are talking about!' The second one says 'What do you mean by know? What do you mean by talking? What do you mean by you?', and so on."

Richard Feynman
 
 
The following websites provide comprehensive coverage with up-to-date literature citations. They may be useful for a better understanding of modern physics.
 
Websites
particleadventure
Plus maths
physics2005
High Energy Physics
onscreen-sci.
Contemporary Particle Physics Projects
physics central
ippex
Nuclear Science
physics web
hands on universe
The laws list
PhysicsEd
Richard Feynman
DR. RICHARD P. FEYNMAN
The Materials Gateway
physicsweb
Physics Org.
Scientific American