i neeed help.....desperately!!!!!!!!!!!?

Question

i have a DT project. we have to get in to groups and make something electronic. i decided to make a mini vacuum. we need alot of help, even a website that has anything about vacuums. our vacuum is really simple is is 7cmx7cmx7cm. plz help if you can.

mazza

Answer 1

7x7x7cm does not sound so simple. Here is a website that explains how vacuums work.
Good luck with your project.