Recent content by F1225

Hey there! What's the strongest material ever-existed? By means of either man-made or occurred naturally. Please attach the links if possible. Currently trying to find out what is material sciences all about. Thanks.

Hi there! I am a second year undergraduate students and planning to take GRE. When should I apply it? What should I prepare for this test? Are there any sample questions of the test available? Thanks a lot for helping.

Does the rest mass of both situation related to Higgs mechanism? I have least knowledge regarding this, I am just curious whether these situation related to the Higgs or not..

Thanks...I finally got it. Square of any function must be greater or equal to 0...

Do anyone know what properties of cosine function should we use? and the method to use it? kinda blur...

I am just curiuos to know what exactly happen in absolute zero? Particle still got mass? at temperature near to 0K particle undergo phase change right? Do Bose-Einstein condensate have mass?

Quantum Gas Below Absolute Zero! http://www.nature.com/news/quantum-gas-goes-below-absolute-zero-1.12146 I am a fresh undergraduate student and not expertise in fields. The link above shows an interesting research on negative temperature. I've visited wikipedia and found out that negative...

:tongue2: actually it is for my exam... My lecturer leak out a question saying that η for Silicon and Germanium must be memorised. He didn't teach this in lecture, that's the reason why I seems a bit blur. Anyway, thanks! Anyone else can give me the ideality factor, η for Silicon and Germanium?

Thanks...Actually the main thing that i want to know is the η or n or whatever value of Silicon and Germanium. My lecturer told my class to find the numerical constant depending on the material of the diode, η. Does my lecturer meant ideality factor? Or anything else?

Hi, I am currently taking a course on electronics and not quite sure of what ideality factor really means...what does ideality factor indicates actually? And the crucial part is what is the ideality factor of Silicon and Germanium? I've googled and found no relevant results are given other...

As we know, the gravitational pull of the black hole is too strong, not even light can escape from it... Let me assume 2 person: A and B A is sucked into a black hole while B is outside the event horizon... At first, B will notice that A has disappeared due to the lights(image) of A is...

? why do we have to square root everything in the equation itself?

Oh thanks for the advice..how about geometry? Do we use them often in theoretical physics as well?

Does it mean that string theory is a subset of quantum theory? Anyway what is the major difference between quantum n string?? :confused:

Oic..Which means that we won't be able to draw a 4D graph on a 2D cartesian plane? Other than cartesian plane are there any other graphing methods? :what: