It’s no secret that the energy stored in citrus fruits can generate an electrical current (a favourite demonstration of school science teachers). But what happens when you use 2500 oranges? You can power a neon billboard, apparently.
We’ve all seen clocks running off foods like oranges and potatoes, but what kind of citrus power does it take to charge an iPhone? This ever-so-strange, ever-so-enchanting video reveals the answer.