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Making an Agar foil.

Research

"Agar agar or just simply agar, is derived from the cell-walls of red algae. It was supposedly discovered in Japan as early as 1658. When an inkeeper left a pot of seaweed soup out in the cold and it formed a gel. And giving the japanese name for Agar, Kanten."

"Agar is used in deserts as a gelling agent like gelatin or pectin. It is often used as a growth medium for bacteria and funghi. And to clarify beer after brewing. Much like gelatin or eggwhite is used. Agar is a vegan replacement for gelatin. It is also used as a filler or glaze to coat paper and fabrics."

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Recipe

Use the three backticks to separate code.

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

Video

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Sound Waves from George Gally (Radarboy) on Vimeo.

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Last update: February 12, 2021