[Hunble]

I forgot about time in the equation.

Work is the amount of force over a given amount of time. An Atomic Bomb releases a tremendous amount of energy in just a few milli-seconds and is obviously very powerfull.

However, the energy generated by a river over a period of a year, makes an Atomic Bomb look like nothing.

This article was confusing for this reason. It failed to explain how this new engine could "switch gears" and why that may be important.

Thanks for your help.

[Frank_Discussion]

Glad to oblige. I think Space.com might need to be a little more explanatory in their, uh, explanations. I understood the article because I had prior knowledge, so I was blind to the deficiency.