How did you start it in the first place?
Plutonium + Lightning works well.
It never produces electricity.
How do you make fan work?
Does anyone know the difference bettween Powder.exe and Powder-ss2.exe?
Are electromagnets possible?
No. This program (annoyingly) ignores a few key physical properties that would make really complex and interesting contraptions possible. Magnetism is one, hydraulics is another.
I wish they would add the 4 fundamental forces in.