But the most heat being generated this week will surely come from within the debating chamber of the General Assembly, where once again Mr Bush and Mr Ahmadinejad will try to capture the world's attention with their version of what is the world's most worrisome brewing conflict.

ECONOMIST: Iran's president visits New York

She'd get rid of the in-the-round, non-adversarial chamber and go for a bit of face-to-face heat along with, of course, some light.

BBC: Churning up the chamber but how?

Fire: Isentropic Energy Isentropic pumps heat back and forth between two separate chambers filled with gravel. (gravel again.) One chamber is at 500 degrees Celsius.

FORBES: The Most Important Man in Energy Storage? Try Archimedes