Recent content by jetpeach

Always a good reminder to never short-circuit a car battery. That was not what I had done, but was in fact referring to when I complete the charging circuit when jump starting a different car. The current in the case I've experienced is much smaller, not enough to "weld" the wires in my opinion...

I'm wondering what causes the force is that holds wires together when their is a current flowing through them, and how to calculate it for different currents. As an example, when I am hooking my car battery up and you touch the jumper cable to the battery to connect the terminals, it kinda...

Hey Everyone, anybody want to verify if what I believe is true- Wikipedia has an incorrect derivation for Fraunhoffer diffraction to calculate the intensity from a single slit. http://en.wikipedia.org/wiki/Diffraction The step I believe they "fudged" is the final integral under "Quantitative...

thanks Ahhh, coherence time (and length) seem to provide be the answer to my question. just if anyone else is interested http://www.physlink.com/Education/AskExperts/ae372.cfm http://www.absoluteastronomy.com/encyclopedia/C/Co/Coherence_length.htm Thanks much, jetpeach

Hi, I generally understand interference and Newton's ring/Young's double slit experiments, but I can't find the answer to a pretty simple question: When two glass plates are placed together and their is a gap of thickness "t", contructive and destructive interference leads to interference...