Quote:
|
Originally Posted by GUILLE 5. What exactly is energy anyway? |
the simplest definition of energy is that: it is the product of force and distance. But since both force and distance are vector quantities and energy is a scalar quantity, the product must be a scalar product, which is also called dot product or inner product. And all the energy products taken together comprise a given Hilbert space specifically for energy. see more about Hilbert space at the link below
http://mathworld.wolfram.com/HilbertSpace.html