In interaction designer [Leonardo Amico]’s work Processing Decay, lettuce is used as an input to produce sound as an element within a CMOS circuit.
We’ve all seen lemons and potatoes doubling in science-fairs as edible batteries, but lettuce is something else. [Leandro]’s circuit uses alligator clips to insert lettuce into oscillators in this audio generating circuit — we think they’re behaving like resistors. Without refrigeration, the resistance of the lettuce changes, and so does the oscillation in the circuit. In a matter of hours, days, and weeks the cells degrades slowly, modulating the system and its sonic output. What a way to make music!
This hack isn’t the freshest — the video dates from nine years ago — but this is the first lettuce circuit we’ve seen. Of course, we love other food hacks like these multi-wavelength lasers used to cook 3D-printed chicken, or maybe the circuit can make use of this neural net detecting fruit ripeness.
Did you already forget about the carrot filter ?
The appropriate word in English is “edible”.
“Edible and eatable both refer to something that is ‘able to be eaten,’ but edible is usually used to describe something that is safe to eat, without regard to taste, while eatable often describes something that has some level of acceptable flavor.”
So yes, “edible” would be better in this case.
It takes less than a day at room temperature to turn lettuce leaves into a microbiological zoo, so neither “edible” nor “eatable” would be appropriate in that case. Let’s call it “vegan”.
A stake would do the same. Lets call it biological…
Might be an amusing way to monitor soil moisture for a potted plant.
Actually audible in this case, -11dB. Rather hard to hear as usual for built in mic-camera and no normalization.
The last part sounds like frogs.
Funny that this came up! That was one of the very first project I did.
Yes, the leaves act as resistors. And it took a lot to wire that salad up :) I agree the sound capture was not good. Yes, the last part sounds like frogs, but it had very potent, low end tones. You had to be there to hear that…
I’d say it’s a waste of a lot of alligator clips. 😳🤪👍