Gilbert cell

Okay, so imagine you have four toys, and each toy makes a different noise. One toy goes "beep", another toy goes "boop", a third toy goes "bloop", and the last toy goes "bleep".

Now, let's pretend you want to put these toys together in a way that helps you figure out which toy is making the loudest noise. You could put them in a special toy box called a Gilbert cell!

The Gilbert cell works by taking those four noisy toys and putting them into two different groups of two. In each group, the toys take turns making noise. So, in one group, the "beep" toy and the "boop" toy take turns making noise. In the other group, the "bloop" toy and the "bleep" toy take turns making noise.

Next, the Gilbert cell subtracts the noise made by one group from the noise made by the other. This tells you which group of toys is making the louder noise.

So, now you know which group is louder, but you still don't know which toy in that group is the loudest. To figure that out, you can switch one of the toys in the louder group with a different toy and see if the noise gets louder or quieter. If it gets louder, you know you switched in the quieter toy, and if it gets quieter, you know you switched in the louder toy.

And there you have it - with the help of the Gilbert cell, you can figure out which toy is making the loudest noise!