A capacitor is a device that stores electrical energy in an electrical field. It is a passive electronic component with 2 terminals.
The first-ever capacitor was invented in 1745 by Ewald Georg von Kleist and Pieter von Musschenbrok. The Layden jar was discovered at the University of Leiden.
You can build one like this:
The Layden jar can store static electricity and you can discharge anytime you want. It can store up to 60.000v and it has a capacitance of about 1 nF.
Nowadays there are more small and powerfull capacitors that have a capacitance of about 50nF, also exist supercapacitors that have a capacitance up to 4000F.
Now the project:
!!!Be careful to the capacitor, the voltage wrote on the capacitor needs to be bigger than the battery voltage, if not, the capacitor probably will explode!!!
This circuit shows how the capacitor charge and discharges.
If I made any mistakes or you want to know more details about the project, you can write anything in the comments.
If anyone else invented this, I'm sorry, I discovered this on accident.
Pls don't hate, I'm only 13 years old and I'm from Romania. If I made any grammatical mistakes, well, sorry. :)
!!! At the led use 220 kohm resistor, not 220 ohm resistor!!!