coconuthead

Thank you so much Alien for the explanation ! Does that mean that, if we change the energy of the light or radiation striking the glass, such that, the photons can interact with the electrons of the glass, then we can make the glass look opaque ? Also, conversely, does that mean that if we direct some low energy radiation or phenomenon towards a solid object like Steel, such that it DOES NOT have enough energy to strike off or interact with the material of steel and thus it just pass through, and had our eyes been sensitive to that kind of a radiation, then we could look through a steel wall ?

Hello freinds ! Can any one kindly explain me what properties of the molecules or atoms that make up the glass OR what phenomenon makes glass to transmit all light through them without being blocked as other solid materials do ? I have searched for it on the web. But the explanations were too technical to understand (I am not a Physics person). Some sites explained it like this ----- " an absence of electronic transition states in the range of visible light" -------- What does this mean. Can any one explain it to me in simple language ? Thank you very much !