Take two syringes and connect them with a tube. Bonus points for the two syringes are different sizes. Now fill them with water and you have a mini-hydraulics system.
Here is my version of these syringes. There are a couple of cool things you could do with this (but I am just going to let you look at it first).
So there you go. What will happen if I push the two pistons against each other? I will show the answer later.
