Despite common cartoon knowledge, it’s actually quite difficult to have new ideas about lightbulbs. That’s why this concept from Mahendra Chauhan and Sanjay Rajput is so surprising—it obviously took twice as much brainpower to conceive it.
The idea is simple: put two filaments inside a bulb instead of one. When the first one burns out, give the bulb a half turn and use the second filament. Sounds great to me—now where’s our light bulb engineers to tell us why this wouldn’t work?
Lightbulb 2.0: Double the Life, Halve the Materials [TreeHugger]
