A Unified Meta-Theory Of Design

A Unified Meta-Theory Of Design combining optimization theory, green design theory, universal theory, design pattern theory, and zen theory. Meta-efficient in 2009.

The Best 12V Solar Battery Chargers

Sunforce Solar 12V Charger

Solar cells really shine at charging your batteries at remote location or on a boat. They are also useful for maintaining a charge on a 12V battery, such as a car battery. The best (and most expensive) solar battery chargers are flexible, thin-film solar cells. These cells can be folded and packed away easily. Sunforce Solar Battery Chargers You can …

Best Electric Kettles

Stovetop kettles are nostalgically cute in movies and lovable as collector’s items, but when it comes to our time-crunched, energy-efficient world, electric kettles–which boil water twice as fast as their stovetop counterparts–are the way to go.