While watching Smallville it occured to me that Superman(boy) can go through an explosion and emerge with his hair unharmed.
Leading me to believe that like the rest of him it is totally impervious to harm.
How does he cut it?
Or fingernails for that matter?
Or shave?
Maybe it has been explained in the comic book…and yes i have too much time on my hands:D
Heat vision.
To trim the hair, he uses 2 pieces of metal from his Kryptonian spaceship like a mirror. So he can trim the back. 
He better be careful,take off an ear otherwise. 
Interesting point, though. According to the comics, heat vision was one of the last powers he developed. How did he cut his hair before that?
I hope that power comes up this season. I’d like to see Clark accidentally burn a steak by looking at it.
He uses kryptonite scissors.
<snicker>
? 
They actually showed him shaving in one episode of Lois and Clark, using his heat vision. It just looked like an ordinary mirror, though.
In the pre-“Crisis on Infinite Earths” DC continuity, Superman had in his possession the “bottled city of Kandor.” Long story short: Braniac shrunk an entire Kryptonian city (Kandor) to “lego” size and kept it in a bottle. Superman liberated the city from Braniac, but couldn’t restore the people in it to normal size. He therefore kept the bottled city in his Fortress of Solitude, and occasionally shrunk himself down to lego size so that he could visit Kandor. Since Kandor still had a “red sun” type environment, Supes was just an ordinary guy with no superpowers. Thus, he could do normal things like get a haircut and shave, etc.
As for the post-“Crisis on Infinite Earths” timeline, wellll… it has Clark Kent growing up in the late 60s/early 70s. (He’s a young adult in the mid 1980s) In such a case, he wouldn 't have needed to shave or cut his hair as a teeneager – he would’ve fit right in with the hippie crowd!
Superman question: What would happen if Superman were fly closer to the sun?
Also, is the Superman movie’s ability of Superman to alter the spin of the earth by flying quickly canon?
Again, this is something that depends on which version of Superman you’re dealing with: pre- or post-“Crisis” Supes.
Pre-“Crisis”: A silver age story had Superman flying into the core of Earth’s sun unscathed (naturally, a red sun would be too intense even for him and he’d be disintegrated.) And although I don’t remember a specific instance of him in a comic book changing the Earth’s spin (as per the movie), he WAS able to shove planets out of their orbit, and frequently travelled through time.
Post-“Crisis”: Superman was deemed too all-powerful to build dramatic stories around (how much suspense can you generate over a character who is a million times stronger than anyone alive?), so when the character was revamped after “Crisis” he was significantly depowered. The modern Superman cannot fly through outer space without a life support suit (he even needs a spaceship to travel interstellar distances) and would be incinerated if he flew too close to the sun. Morevoer, he can’t travel through time (except for an occasional freak accident, or if aided by aliens with superior technology.)
Holy Poop! I was just turning on some musica, and as soon as Cafe Society loaded and i saw this thread, the song “Superman” by the Crash Test Dummies started playing…too weird…
Just thought I’d share.
Actually Superman recently flew through the sun. It was incredibly painful but supercharged him (remember, he absorbs solar energy and his body converts it) enough to move a planet.
Also in one miniseries set in the far future, Superman was still alive after 83,000 years and lived in the sun.
In the movie, Superman didn’t turn the Earth’s spin backwards, he flew faster than light, and travelled backwards in time.
He used to do that all the time in the comics (he can’t anymore, that’s Flash’s gig now) but it was easier to see what was goin on, since time travel apparently involved flying through a series of circles with dates on them (1967, 1966, 1966, etc.).
Neat! I don’t suppose there’s a graphic novel for it, is there?
Aren’t red suns cooler than yellow suns?
Where’s Bad Astronomer?
Art’s incorrect on several minor points, though he has the gist right.
Pre-Crisis:
Superman’s hair and nails don’t grow on Earth. To quote from an issue of Superman from the '60s “My beard, my hair, my fingernails! They never grew in Earth’s atmosphere as they would have on Krypton!” (I’m looking at a reprint book, so I don’t have the actual issue number: Superman is exposed to Red K which make his hair, beard and nails grow a lot. Supergirl and Krypto focus their heat vision to burn 'em off. Those were the days… ) Remember, pre-Crisis, Superman came to Earth as a 2 or 3 year old…apparently hair and nails only grew in proportion to the rest of him.
Post-Crisis, his hair and nails DO grow, but he reflects his heat vision off a piece of shiny metal from the rocket to shave.
Superman gets many of his powers (pre-Crisis) from “Yellow solar radiation”. (He gets some of them from the lighter gravity and some are a combination of the two). “Red solar radiation” takes many of his powers away. Pre-Crisis there was no charging-up time for Superman’s powers…if you hit him with “red solar radiation” he loses much of his powers instantly and if he steps back into normal Earth sunlight he gets his powers back at once. “Blue solar radiation”, being MUCH more intense than yellow overpowers him dangerously. To the point where he’s afraid to use them…a normal human being (say Jimmy Olsen, who it happened to) on a lighter gravity world that revolved around a blue-white sun gets the full suite of Superman’s powers. Orange suns reduce a Kryptonian’s power level by about half. Green suns (NOW we need the Bad Astronomer) either work as red or orange suns (there were only two “green sun” stories that I know of and they were inconsistant with each other)
Since the “yellow solar radiation” acts as an ON/OFF switch for his powers, flying through the sun makes no difference to him: if you have an ON/OFF lightswitch, the light doesn’t get brighter if you push it up harder, right?
BTW Art, in response to your question
Enough to make the period when Superman was at his most powerful (about '50-'70) by far the best-selling period of Superman’s career (IIRC) and the authors didn’t seem to have any problem coming up with good stories right up to Byrne’s reboot in the mid-80s. So apparently enough to keep readers buying for at least 35+ years 
The so-called story telling limitations of Superman’s power-level had nothing to do with the depowering. It was simply another way for Byrne to put “his” stamp on the character, IMO. A competent writer can handle the challenge of Superman’s power-level just as a competent writer can handle the challenge of the Legion’s huge cast and unimaginable power level. It’s always a terrible sign for the Legion when a new writer comes on the book and says that the team is just too big and powerful. It tells me that the writer’s simply incompetent, or on the wrong book. Same with Superman (or, frankly, any other character)
Case in point: Have you ever read Supreme during Alan Moore’s run? (Late '90s) He turned Supreme into the Mort Weisinger era Superman. He didn’t even file off the serial numbers (Radar, the Dog Supreme. Purple Supremite. Szazs, interdimensional imp, etc) and was able to tell great stories that modern audiences bought in droves without resorting to the "He’s too powerful to tell stories about cop-out.
Fenris