What is Energy?
What is energy? How do we measure it? Where does it come from, where does it go and how does it get there?
What does this have to do with beer? And what about Watt?
This is the second lesson in my Low Energy Building course.
Correction: I said you need three rice balls to climb 500 flights of stairs, but I meant five rice balls. And the energy required for climbing a flight of stairs is not a simple calculation. You can investigate by asking Google sensei!