Capacitor

[Bluga]

I need to build several simple dielectric capacitors. For example aluminum and wax paper, any other idea?

 

[HomerSapien]

Material Dielectric Dielectric Strength
Constant kV/mm
Air (1atom) 1.00054 3
Polystyrene 2.6 24
Paper 3.5 16
Transformer Oil 4.5
Pyrex 4.7 14
Ruby Mica 5.4
Porceain 6.5
Silicon 12
Germanium 16
Ethanol 25
Titania ceramic 130
Strontium titanite 310 8

from my book...

hmmmm....cant seem to get the spacing right.