Here contains the collection of expert physics articles that deal with physics topics These span all skill ranges and may include astronomy and cosmology topics. Join physics forums, where students, scientists, and enthusiasts come together to explore and discuss the current understanding and practice of various scientific fields. Quantum physics underlies technologies from the laser to the smartphone The international year of quantum marks a century of scientific developments. To merge quantum physics and general relativity, physicists aim to quantize gravity
But what if gravity isn’t quantum at all? What is the importance of \upsilon = \sqrt {2gh} in physics I've seen it in escape velocity problems, though with an r instead of h I've seen it with conservation of momentum applications, and it's similar to pe = mgh Yesterday my professor was discussing bernoulli's equation and this equation came up again. In physics, tensors are often a mixture of several vector spaces and several dual spaces
A tensor of type of with contravariant and covariant components is an element (vector) of by (1) this tensor is linear in all its components Physics forums expert math and physics blog Read and learn from expert math and science articles, tutorials, and guides Test your science knowledge with our quiz. This perfectly legitimate question seems to cause a lot of confusion So what is energy and how do conversations about what it is go wrong?
The following formulation in terms of 7 basic rules of quantum mechanics was agreed upon among the science advisors of physics forums.
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