Wiring up a lemon to produce electricity works. Insert copper into one end of a lemon, zinc into another, connect the two points by wire and you can power a low-output source of electricity, with a typical lemon putting out just under a volt. It’s a great science experiment for kids, is low-buck to do and the house will smell amazing afterwards. (Who doesn’t love fresh lemon scent?) The chemical reaction between the metals (electrodes) and the citric acid-loaded juice of the lemon (electrolyte) is what makes the power, so as long as you have all of the ingredients, you can make an LED glow.
Neat trick, but tell me this: say you have access to bushels upon bushels of lemons and you have a dead car in the yard. You need a jump, but you don’t have a battery pack, a spare vehicle, not even a hamster in a wheel that could run a crank generator for a treat. Could you theoretically wire up enough lemons to produce enough voltage to kick the engine over? We never knew the answer to this question, because honestly we never bothered to ask the question in the first place, but leave it up to the Russian madmen behind Garage 54 to give it a shot. We’re sure at least one market in Russia had a manager wondering who the hell was throwing the party big enough to require tons of lemonade, and here’s the reason why. With a shop floor full of lemon halves wired up in series, can they crank over a Toyota with a disconnected battery?