Yes........ Quantum physics lead to something at last https://news.yahoo.com/s/space/20051021/sc_space/accidentalinventionpointstoendoflightbulbs I still didnt get exactly how this works. Some doubts remain. Professor Shahrukh: Help me here. Whats polyurethane??
polyurethane...i think its self explainatory its polymerised urethane.... what ever it is sounds damn cool....but will be some time before it beacomes house hold
aah am i blushing? no i hope not .. haha anyway .. polyurethane is a kinda glue ( a resin) which is often used in labs .. the thing which troubles me is .. that the quantum crystals emitted white glow when subjected to laser .. but they coated an LED with the mixture of polyurethane and those crystals ... and still observed the white glow .. light from LED is certainly not equal the laser in anysense ... i dunno how it still managed to excite the atomic crystals .
lasers are really really strong .. laser is actually the Light Amplification through Spontaneous Emission of Radiation (L.A.S.E.R) the light is shone on atoms .. the electrons do soemthing weird (forgot what exactly, either they emitted a pair of quanta or jumped energy levels) and then they amplify the light .. so laser is certainly more powerfull than the ordinary light .. but yes the question that you and me had is a valid one .. found another link .. maybe this will help .. (got a pic on this one) https://www.livescience.com/technology/051021_nano_light.html
i am bulbing like a tube light here need a whiff of fresh air ... will check this thread later ... (when things have been posted in English)
You want that to happen with CO(NH2)OC2H5. That has to jump two energy levels and comeback... I cant imagine many things harder to control than this.. :shock: how do they manage that? I think that the attitude that everything will get easier a few years later shows here......
you dun have to control the electrons jumping the energy levels .. they do that by themselves .. its in their nature actually what happens is .. the electrons are in certain energy levels .. when light is shone on them they absorb energy from light particel, now since they have high energy hence they cannot remain in the same energy level .. they have to move up! .. but when they move up .. they cant remain there for long... because it makes the atom unstable (further the electron from the nucleus, weaker the atom, cuz easier becomes the ionisation) .. so what they do is .. release the enrgy in from of light, .. if they emit the same amount of energy as they absorbed in the first place .. they end up in thier old energy level .. but if they emit more energy than they absorbed, this results in "amplification" of light .. cuz we observe more light comin out of teh atom than what we gave to the atom .. .. and to mantain the law of conservation of energy .. the electron goes to a lower energy level.
Yeah... the electron jumps energy levels automatically and comes back giving out energy...yes.. But the controlling part was to give exactly the amount of energy needed to every atom EQUALLY... how can they do that? I must say that your'e ridiculously good at explaining these sort of things...
