Recent content by xzardaz

Hello, As we know, if one turn a light blub(and no other light is present) on and put his hand in front of a wall to make a shadow, the shadow is blurry, depending on the distance between the hand and the wall. I want to ask you if this blur is caused by quantum uncertenty (like this...

Happy new year, L(t)=a(1-t)+(b-a)t\\ L(t)=p1x(1-t)+(p2x-p1x)t L(t)=p1y(1-t)+(p2y-p1y)t L(t)=p1z(1-t)+(p2z-p1z)t L(t)=p2x(1-t)+(p3x-p2x)t L(t)=p2y(1-t)+(p3y-p2y)t L(t)=p2z(1-t)+(p3z-p2z)t Is that what you mean ? If so, how do I find p1, p2 and p3 ?

I don't think I fully understand you. Can you give me some references ? If I solve L(t) = a*(1-t) + (b-a)*t for all the lines, I can't get the points, because there are infinite number of points matching the equations. How do I use w and h ?

Hello, I have a simple(or not?) math problem: I have equations of 3 lines in R3 trought the origin: line l1: |λ1*x+β1*y+γ1*z=0 |λ2*x+β2*y+γ2*z=0 line l2: |λ3*x+β2*y+γ3*z=0 |λ4*x+β3*y+γ4*z=0 line l3: |λ5*x+β4*y+γ5*z=0 |λ6*x+β5*y+γ6*z=0 I know every λ, β and γ -...

So the reflected light from Earth is brighter then the scattered light from atmosphere?

//offtopic To continue that: Let the angle be λ and half* a circle be β (0≥λ≥β and β≠0) The mesuring unit for λ and β must be the same - doesn't matter radian, degrees or other - see almost all used If we chose some λ, the chance C that λ is some constant a (0≤a≤β) is 1/(all possible...

Hello, I have a novice question. I know that the sky color is blue (at noon, when there is no clouds), because the air particles (mostly N2 and a little O2 ...and other) scatter short-wavelength light more than longer wavelengths. That is why we can't see the stars trought the atmosphere...

I think this is a terrible explanation. Maybe it is true ( you know better - I'm just a novice ) , but very ugly. But can't we just look for a reason ? Can't you just use that anyway ? Because 1 minute is 60 seconds you can convert : ( one meter per one minute ) per one minute =...

Hello , I have a very simple question : Why do we mesure acceleration in \frac{m}{s^{2}} ? We all know that the speed is mesured in meters per second. This is very intuitive - it describes the speed as mevement of a point : how much distence ( in meters in the Si system ) the point travels...

Hello , I'm new in here. I'm not physicist , but I wonder if it is possible to have such material , that changes the color of the light. For example we take a piece of glass , we shoot it with a LASER beam of light with 650 nm wave length ( redish ) and the beam , escaping the glass would be...