2 ms·
Weird Glowing Capacitor
- peter_d_sherman 6y agohttps://youtu.be/ma-jnmtR9VA?t=51 https://youtu.be/ma-jnmtR9VA?t=51 >"If you get a lump of Aluminum (foil) and jelly roll it up loosely, you'll get surprising capacitance on that, and that's because on one of the plates, Aluminum Oxide forms; the "other plate" is actually the electrolyte (Borax or Sodium Bicarbonate (Baking Soda) solution), and the other bit of Aluminum in there is just acting as a contact for the electrolyte." https://youtu.be/ma-jnmtR9VA?t=95 https://youtu.be/ma-jnmtR9VA?t=95 >"The idea of that actually came from early radio experiments when you can make your own rectifier (diode) by using Aluminum, any other metal, Borax or Sodium Bicarbonate (Baking Soda) solution." (Also, avoid Copper as the other metal, as the whole thing apparently turns blue-green). https://youtu.be/ma-jnmtR9VA?t=280 https://youtu.be/ma-jnmtR9VA?t=280 >"So this little setup, we can not only use it as a capacitor, but we can also use it as a rectifier, and as a glow-in-the-dark capacitor." PDS: Now, here's the thing... if it's possible to make a diode (aka "rectifier") out of Aluminum foil alone, because (apparently) an Aluminum Oxide layer forms -- and when you've got a layer of Aluminum next to a layer of Aluminum Oxide, you've got a diode -- then it might be possible to create a transistor -- this way, or using a similar method, as well... it would be very interesting to see if that could be accomplished...