Can Superman see through Lead Crystal?
150739
Well, if it's made of lead, then the answer would be no. That's 1 for humans, 234,156,177... for Superman.
316573
Actually, I would think that if he is invsible, his retina would not be able to absorb light. The light would just pass right on though with no effect. In order for a person to see, the retina in the back of the eye has to be able to absorb light, which it can't if the light passes right through it. Therefore, an invisible man is not able to see.
1140650
oK! To the outside looking in - Yes! Superman whips them both\nBut most people forget that Superman has trouble defeating Lex Luthor. Batman is the world's greatest detective and would outsmart Superman and lead him into Kryptonite or a red light shining red sun beams turning him human. And with Spiderman's help, he is defeated!!!
156920
First off lead crystal glass is not made of 100% PbO.\n\nLead glass is potassium silicate glass which has been impregnated with lead oxide (from 12% to 28% by weight) in its fabrication.\n\nThe introduction of lead oxide in varing amounts was employed for several purposes the first primary purpose was to design a type of glass that could block x-Rays second it was found that lead also increased the refractive index of the glass, and thus improved lustre, or sparkle.\n\nLead glass's primary contemporary use is in the construction of televisions and monitors. In a standard cathode ray tube, high-energy electrons are fired at phosphors painted on the inside of the tube. This impact creates the visible light the monitor or tv screen produces; it also produces X-rays. The lead in the glass acts as a barrier to this unwanted radiation.\n\nWhen lead glass was artistically cut and used to make table ware such as wine glasses and decanters it was called lead crystal.  Within the last 10 years it was found that  alcoholic beverages stored in a lead crystal decanter was capable of leaching the lead from the glass and contaminating the contents.
1028344
http://en.wikipedia.org/wiki/Superman
838021
Superman just uses his X-ray eyes that could burn the spider webs. But I think they will not fight because they are positive and have integrity personality.
551197
Not  necessary. When the thickness is high ordinary ray of light is absorbed by the crystal and only the extra-ordinary light comes out.\n\nIf  cut we can  identify the position of crystal to produce the polaraised light.
1012133
SUPERMAN RETURNS----but will it also be shown on Krypton that day????
382281
In the Superman (1996) cartoon starring Mr. Mxyzptlk, we see Clark shaving in the mirror using his heat vision to burn off his whiskers, so we can assume he does the same sort of thing to his hair. (In the old stories, the writers simply wrote it off as "Superman is an alien, therefore his hair doesn't grow"). \n\nThere's an old Superboy story (from the 1960s) where the town barber is confident he knows Superboy's secret identity because Clark is the only kid in town who doesn't come in for a haircut (yeah, like he's the ONLY kid in a farm town who doesn't cut haircuts from mom at home). Anyway, that story est. that his hair is too hard to cut with scissors, and Clark fooled the barber by wearing a bald cap and wig when he saw down in the chair (this making the barber think Clark's reason was because he lost his hair to a childhood disease). Totally goofy, but a lot of fun to read. If you want the issue number, I can try and dig it up. \n\nHope this helps, \nMeesh
905668
Current (comic) canon is that for shaving, Superman uses focussed heat-vision and a reflective piece of the rocket that bought him to Earth. By extension (and because he is Superman), he could probably cut his hair using heat-vision and two or more of the mirrored pieces. It is also entirely possible that he has something in the 'Fortress of Solitude' (his stash of all things Kryptonian) that would cover his needs too. My question is how does he keep the smell of burning super-hair down in his apartment...   ;)\n\nFor the  'cape and boots' comment. Quite often, Superman's cape doesn't survive (good dramatic effect in the comics) and he has a collection of them stashed all over the place. His boots, as with the rest of his costume, are covered by his 'Invulnerability' - anything close to and/or in contact with his skin is pretty much safe. (Again, sometimes his costume is torn for dramatic effect.)\n\nThe movie continuity is different from the comic continuity, and pre-1986 revamp (referred to as 'Pre-Crisis) Superman's costume/hair/etc is explained away as "Kryptonian, so it's super".
551947
Superman eats whatever he wants. That's one thing that makes him so super.\n\nIf he feels like a steak, he eats it. If he feels like poisoned porcupine needles blended with cat hair and a little bit of raw frog skin, he'll eat that.
71718
It was to ensure that his secret identity would remain secret.\n\nSee, as Clark, he wore glasses so that people wouldn't recognize him as Superman. But as a backup, in case someone saw him as Clark without his glasses on, he wore his underwear on the outside as Superman. He had to do it like that, because if he, as Clark, wore his underwear on the outside, people would think he's wierd.\n\nI mean, who's going to tell Superman he looks like a dork wearing his underwear on the outside? Not me.
322915
No.  A laser beam, for example, can pass right through another laser beam as if it weren't there.  Light does not block other light.  You can easily see through a beam of light, unless there is a lot of particles in the air which scatter the light and dazzle you.  When you look at something you don't normally see the light in the room crossing your line of sight, only the light which goes directly into your eyes.\n\nThose laser beams you see in space in the movies?  That's just Hollywood.  In reality you couldn't see the beam from the side - light is completely transparent.
983408
There has been some sucess in invisibility lately and the real deal for governments is just around the corner.\n\n\n\nInvisibility Achieved \nInvisibility Achieved ... New Scientist - Working invisibility cloak created at last. Photonics Online - First Demonstration of a Working Invisibility Cloak ...physics.about.com/b/a/007455.htm \n\n\nen.wikipedia.org/wiki/Invisibility\nInvisibility is here, just not perfected. Since objects can be seen by light in the visible spectrum from a source reflecting off their surfaces and hitting the viewer's eye, the most natural form of invisibility (whether real or fictional) is an object which does not reflect nor absorbs light (that is, it allows light to pass through it). In nature, this is known as transparency, and is seen in many naturally-occurring materials (although no naturally-occurring material is 100% transparent).\n\nVisibility also depends on the eyes of the observer and/or the instruments used. Thus an object can be classified as "invisible to" a person, animal, instrument, etc.\n\nInvisibility \nThe following text is a combination of two separate files on Invisibility. ... Cold-rolling of steel - To induce Invisibility in matter, we can use any of ...www.keelynet.com/unclass/invisi.htm  \nThe US government has a cloat of invisibility but it is not yet feasible for say a tank or battleship.\nHere's how to make an invisibility cloak - Science - MSNBC.com \n... on new types of materials that can throw a cloak of invisibility around objects. ... engineer Nader Engheta, who published his own invisibility recipe last year. ...www.msnbc.msn.com/id/12961080?GT1=8199
1089692
*****SPOILER!\n\nSuperman went to find the remains of Krypton, because it had been reported that NASA scientists had found Krypton. When he got there, it turned out that Krypton was a "grave yard". It took him 2 1/2 years to get to the remains of Krypton and 2 1/2 years to return to earth.\n\nThe scenes of Superman visiting the remains of Krypton, will probably end up on the DVD, but they were cut from the final film.\n\nSuperman asked his mother to send post cards to Lois as Clark Kent, so it would appear that Clark is still on earth, but no longer in Metropolis.
731811
Superman is without a doubt the greatest super hero of all time. He is the ideal man and the ideal hero. He has every power imaginable. \n\nI'd love invisibility because you could go anywhere you wanted anytime you wanted and mess with people!
816237
I do not think that atoms will fly over the gap between a piece of gold and and old lead pipe.\n\nHowever, gold and lead readily form a wide range of alloy compositions. Lead has a high affinity for gold and can be used as a collector for gold in pyrometallurgical processes. The lead can be subsequently separated by volatilization.