Like wind and sunlight, the power of gravity is an infinite resource.

FORBES: Gravity May Soon Qualify As Renewable-Energy Resource in New York

In other green tech and design news, Hitachi unveiled an impressive new wireless controlled robot to help with the Fukushima Daiichi cleanup and London-based designers Martin Riddiford and Jim Reeves developed the GravityLight, an amazing low-energy, battery-free light that works by harnessing the power of weight and gravity.

ENGADGET: Inhabitat's Week in Green: madder root batteries, sun-powered plane and the world's first fiber-optic solar cell

And there is no indication that the reason why decaying dams are found at each point where the town brook falls ten feet is because there used to be a dozen factories on its banks using the gravity power of falling water to turn out a variety of industrial products.

FORBES: A Cautionary Tale From America's Hometown

As images and stories put us in awe of nature's destructive power, it may be worth a moment to marvel at the force of gravity that governs the behavior of all matter, from the waters of Lake Pontchartrain to light.

NPR: Defying Gravity, and Odds, in New Orleans

The new Mercedes V10 engine is not only sited lower in the car for a lower centre of gravity, it is also reputed to be the lightest power unit in F1 at a little over 90kg.

BBC: Radical new McLaren breaks cover

Closer to home, he neatly highlights the role of gravity as an energy "engine" by discussing how the Hoover Dam converts gravitational energy into electric power.

WSJ: Book Review: Gravity's Engines