Recent content by msakkas

Diazona: Very interesting and thank you for your reply. I can (sort of) follow the mathmatics. But I'm still having trouble with the basic concept. If gravity has the same effect on a big bus and a little bus, why do we have to "alter" gravity for the 1/12 sized simulation? It seems that...

zgozvrm and sophiecentaur and others - thank you very much for your replies. Very informative. Can any of you recommend a book or text that gives a basic treatment of principles of electricity? Regards, Matt.

Thank you Diazona. I guess my question then becomes, if a big bus and a small bus fall at the same rate, why do we have to be concerned about "scaling" gravity. In other words, how does simulating 1/12 gravity add to the realism of the scaled down bus jump?

Thank you. So ultimately my question is, where does the neutral wire go? I'm trying to get a picture of the flow of the current in an AC system. I thought that the negative wire eventaully leads to a copper rod buried in the ground, just like the grounding rod in one's home. In essence the...

Hi, I'm new to this forum and fairly new to physics study, so I apologize in advance if this question is very basic. I understand that in a circuit, be it AC or DC, what ultimately matters is the potential difference between - and + sides. In a typical household AC system the circuit is...

Hi, I'm new to this forum and I've been trying to teach myself some basic physics for a while, so I'm not very advanced. I have a basic question - what is meant by "scaling" gravity. I thought the force exerted by gravity was given by the equation F=GmM/r squared (haven't figured out equation...