Recent content by cells

Instead of a mass driver would a mass puller be feasible? imagine a drum spun by an electric motor reeling in a steel wire pulling the load would the limit of such a devise be if the drum can survive the needed RPM?

Hello just wondering what is the limit to a maximum pressure on earth. start with say a gas canister at 1000 bar. If you put that inside another canister at 1000 bar could you increased the original canister to 2000 bar now (1000 bar pressure above the outer canister) And keep repeating with...

Two independent mirrors not connected to each other! so both fly off in opposite directions. Anyway I think I figured it out Reflection requires promotion of electrons from one orbital to a higher one, then back again, this requires a finite time which is probably >> the flight time between...

humm perhaps its my wording, but that's what i ment. have max thrust just before you land (you can have max thrust and not even be moving) not landing with max velocity

Pressure = energy flux / speed of light Taking an energy flux of 1000 watts per meter sq (typical flux of sunlight on Earth's surface) We gain, pressure = 1,000/300,000,000 = 1/300,000 Pascals. If it is reflected, we gain twice that = 2/300,000 pascals Now my question, if I had two...

i know that fighter jets when landing on a carrier are required (for safety) to put on max thrust before they land (hence if they miss they got plenty of speed to fly away) i assume the same is true with passenger planes, they are probably required to increase power just before they land and...

there is no material that is frictionless because it is impossible to get to absol zero temp hence no surface is perfect, it would break so many laws that this world would definitely be totally different in every respect. but i think your teacher was just trying to get you to think about ways...

ebay sometimes has good math books and physics books, but you need to wait a while before you find the one you are looking for also if you are a student there may be people in a year or years higher that want to sell their books which u can pick up cheap other than that, long term libury books...

do you mean using a computer on a program, or using your head? how big do you want A to be? just for ref, i quickly wrote a c++ program that can get you values of e^A where A is in the order of a million in less than a min, although i cheated and gave it a starting value of e but you need to...

yep you need to explain your question better as for tunneling electrons , think of the fundimental forces, they can interact via gravity at all times and via electromagnetism but i don't think that is what you are asking