Recent content by metalmaniac

Oh okay, thanks.

Have a look at this. http://www.matter.org.uk/schools/content/interference/formula.html" I follow the derivation of the formula. However it seems to follow from the diagram that: λ=ssin(arctan(w/D)) Without the need for the approximation sinx ≈ tanx. I can't see how this can be true...

hi there, now I've been googling around for ages now trying to find this answer but i cant i have read time and time again that a nucleus always has less mass than the sum of the masses of the nucleons in it. This is put down to the binding energy, this is where i get confused surely if it...

hi there, i have written a small program in C++ and if the user puts in the wrong values for some of the variables the operation will end up trying to square root a negative number and this returns that the answer is not a number can anyone show me how to write an if function that if...