Question

How is nuclear energy produced from the fission of uranium atoms?

Answer 1

You can read about uranium fission in

http://socratic.org/questions/how-does-nuclear-fission-work-with-uranium?source=search

http://socratic.org/questions/can-you-tell-me-in-a-nuclear-fission-reaction-which-has-more-mass-between-the-in?source=search

In summary, uranium fission produces energy because the total mass of the products is less than the mass of the original uranium nucleus.

The mass difference is released as energy, according to the equation `E = mc^2`.