...There are many subjects I have a solid grasp of and can explain; just let me know what you need help with, e.g. maybe send your assignment in advance, and I'll let you know if I'm able to assist you. :)Majored in physics at Caltech, now doing a physics PhD. Have taken countless physics classes. I got a 1550 (out of 1600) on the SAT a few years ago, with 760 on reading. (read more)