You could use tap pressure, a connecting pipe and a balloon.
There is actually a wood and plastic kit of that and similar things. Seen in A Canadian Model store,but can't remember the kit name.
how to make working model of industries
There are a few ways to make an English working model. The exact model details depend on the type of English working model you want.
you get glue and popsical sticks, me duckie. then you get a big red staples "do it" button, and EH VOILAAAA! you got yer hydraulical bridge :D
There are so many ways that you can make a working model on sound. One way to create a working model is to sing.
A four post lift is a hydraulic powered machine used to lift cars in order to get underneath and make working on it quicker and easier. Also they can be used to lift your "weekend car" so your "day-to-day car" can go underneath and pull out easily and create space in the garage. Basically it is a convenience item.
Working model for what, exactly?
working model of nervous system
working model on Articles
u make your working model of area of circle with your use of brain
Answers.com is stupid people are not supposed to answer the question you are, you should really make this website better. I'm aggravated.
There are several ways one can make a working model of an earthquake. You can use an empty 2 liter bottle, clay, baking soda, and dish detergent to make a working earthquake.
you can make a bulb working.......................