the.com/efficiency
The art of doing more while looking like you're doing nothing at all.
car enginesMost gasoline engines waste 60-70% of fuel as heat
human bodyMuscles convert only about 25% of energy to motion
lazy geniusBill Gates prefers lazy people for hard jobs
jevons paradoxEfficiency gains often increase total consumption, not reduce it
photosynthesisPlants capture barely 1% of available sunlight energy