What molecular arrangment leads to transperency?
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From: jimp on 24 Jul 2010 01:10 In sci.physics Immortalist <reanimater_2000(a)yahoo.com> wrote: > There has never been any research showing health benefits of blocking > UV light to the eyes. Actually there has been quite a lot of it. -- Jim Pennino Remove .spam.sux to reply.
From: Y.Porat on 24 Jul 2010 04:26 On Jul 24, 3:24 am, Sam Wormley <sworml...(a)gmail.com> wrote: > On 7/23/10 7:12 PM, Immortalist wrote: > > > So the light (electromagnetic radiation) that hits the glass is > > absorbed by electrons and retransmitted to the next mineral (glass > > molecule) and so on, till the light has propagated all the way through > > the glass? In this way the light is emitted from the other side of the > > glass, a sort of replacement light pattern. Some say that this is why > > looking through glasses eventually will harm your eyes because some > > frequencies don't make it through even they are not visible light. > >   Photon Energy >    E = hν > >    E_emitted ⤠E_absorbed > >    No increase in photon energy, therefore wearing glassed does NOT >    damage eyes due to increased energy. -------------------- see inmy abstract the hexagonal structure of matter it has sort of completely empty 'tubes' all along the sample no matter how thinckit is it depends as well on the angle of the kight hitting the lattice if it is very deviating from the [arallel line axis of those tubes it is rejected 2 in addition tothe exagonal structure the is a more dense latice in with that empty tunel is filled with additional molecules moreor less at the middle of that empty tube in that case that kind of lattice is opaque that as just asimple case to explain there much other many other cases see at the right location: http://sites.google.com/site/theyporatmodel-an-abstract ATB Y.Porat -----------------------
From: Y.Porat on 24 Jul 2010 04:30 On Jul 24, 10:26 am, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > On Jul 24, 3:24 am, Sam Wormley <sworml...(a)gmail.com> wrote: > > > > > On 7/23/10 7:12 PM, Immortalist wrote: > > > > So the light (electromagnetic radiation) that hits the glass is > > > absorbed by electrons and retransmitted to the next mineral (glass > > > molecule) and so on, till the light has propagated all the way through > > > the glass? In this way the light is emitted from the other side of the > > > glass, a sort of replacement light pattern. Some say that this is why > > > looking through glasses eventually will harm your eyes because some > > > frequencies don't make it through even they are not visible light. > > >   Photon Energy > >    E = hν > > >    E_emitted ⤠E_absorbed > > >    No increase in photon energy, therefore wearing glassed does NOT > >    damage eyes due to increased energy. > > -------------------- > see inmy abstract > the hexagonal structure of matter > it has sort of completely empty 'tubes' > all along the sample no matter how thinckit is > it depends as well on the angle of the kight hitting the lattice > if it is very deviating from the [arallel line axis of those tubes > it is rejected > 2 > in addition tothe exagonal structure > the is a more dense latice > in with that empty tunel > is filled with additional molecules > moreor less at the middle of that empty tube > in that case that kind of lattice is opaque > that as just   asimple case to explain > there much other  many other cases > > see at the right location: > > http://sites.google.com/site/theyporatmodel-an-abstract > > ATB > Y.Porat > ----------------------- sorry as usual typo: http://sites.google.com/site/theyporatmodel/an-abstract Y.P ----------------------
From: Unified_Perspective on 24 Jul 2010 08:28 On Jul 20, 12:08 pm, Sanny <softtank...(a)hotmail.com> wrote: > We see glass is transparent. > > When light touches a surface it gets absorbed and reflected. > > But in case of glass the light goes inside it and comes out from other > end. > > Earlier I made a guess the number of molecules in glass blocking the > light will be less. > > But then I found some 1 feet thick glass are transparent. > > While even a 1mm thick aluminium plate do not allow to pass the light. > > So number of molecules stopping light do not effect whether a > substance is transparent or not. > > I think its the arrangment of molecules that descide wether the > substance is transparent or not. > > Does Glass molecule acts like a spring? and Just like a Spring allows > waves to travel through it. Glass allows light wave to pass. > > What type of arrangment of molecules lead to transparency? > > Bye > Sanny > > Chat with Physics Professor:http://www.getclub.com/chat_with/?key=Physics There seems to be a general lack illumination on the subject of transparency here. Light which is absorbed by an atom is not generally re-emitted. The exception to this general rule are molecules known as photo-phosphers. They are named for their ability to re-emit (at reduced wave-length). Materials that absorb light are opaque. Materials that do not, generally speaking good insulation type materials, transmit light if their molecular pathways permit. Carbon either absorbs 100# or transmits 90+ percent depending on how its cubic lattice is arranged. Stacked upon each other so the "holes" align as in diamond = transmit. Stacked so the holes are all filled as in plain carbon = absorb. Gases have lots of large holes, so they are typically transparent although those that are good conductors like ozone or hydrogen sulfide can be good absorbers at certain wavelengths. So, there you have it - it all depends - in this case on how things stack up. In our country Mr. Obama wants to increase the transparency of the Federal government. To do so, he should clearly decrease increase the illumination, decrease the amount of absorption, and get all those little holes lined up! I wish him the greatest success! End of lecture... Here's looking at you kid! Mr. Gee
From: bert on 24 Jul 2010 08:29
On Jul 23, 10:18 pm, Immortalist <reanimater_2...(a)yahoo.com> wrote: > On Jul 23, 6:24 pm, Sam Wormley <sworml...(a)gmail.com> wrote: > > > > > > > On 7/23/10 7:12 PM, Immortalist wrote: > > > > So the light (electromagnetic radiation) that hits the glass is > > > absorbed by electrons and retransmitted to the next mineral (glass > > > molecule) and so on, till the light has propagated all the way through > > > the glass? In this way the light is emitted from the other side of the > > > glass, a sort of replacement light pattern. Some say that this is why > > > looking through glasses eventually will harm your eyes because some > > > frequencies don't make it through even they are not visible light. > > >   Photon Energy > >    E = hν > > >    E_emitted ⤠E_absorbed > > >    No increase in photon energy, therefore wearing glassed does NOT > >    damage eyes due to increased energy. > > I have heard that eye glasses filter out some uv and other frequencies > which subtracts from full spectrum light. Are you sure that glass > doesn't change the light?- Hide quoted text - > > - Show quoted text - Have green sunglasses and only green light goes through.etc TreBert |