Bobby Drake : As Cold as Ice

Standard

Iceman2Bobby Drake, code-named Iceman[1]Iceman bio courtesy of Marvel is our subject matter today. One of the original X-Men, he first appeared in The Uncanny X-Men #1[2]Credits and info on The Uncanny X-Men #1 where his mutant power was revealed to be the ability to lower the temperature of his body and immediate surroundings to less than 0 degrees Celsius. This power meant his body tended to acquire a protective coating of frozen water.

As I’m sure fans are already aware, be it from the comics, cartoon series or films, Bobby can’t actually produce ice. In actual fact what he does is condense the water vapour always present in the air and manipulate it. It’s an interesting idea for a mutated human ability. Unfortunately I do have to question where the heat he subtracts goes. Heat that you subtract from any given situation must be compensated for by an amount delivered somewhere else. The Second Law of Thermodynamics[3]Explanation of the Second Law of Thermodynamics would suggest that the heat added is most likely greater than the heat subtracted. For a more everyday explanation, take your refrigerator. Your fridge removes all the heat inside it and makes it nice and chilly so you can store all your goodies. The heat doesn’t disappear though, it gets fired out the back of your fridge. So my question remains; where does the heat go when Iceman freezes the air? Sadly it’s not something I can really fathom an answer to and I don’t see Marvel coughing one up for me anytime soon. It obviously has to go somewhere but for just now it’s a mystery!

As Iceman gained more control over his powers, he not only had the ability to form a protective shell but he could also project ‘freeze rays’ meaning he could ice up other people and objects. The coolest manifestation of this were the ice slides he frequently used to get around while fighting. In principle Ice Bridgehe’s basically making a big ice mountain underneath himself to gain height and then generating some nifty ramps to get him where he needs to be. Assuming that you could actually control the temperature the way it’s stated he can and that it’s humid enough to provide an appropriate amount of moisture in the air for all that ice creation then this in itself doesn’t violate any physics principles.

The problem lies in the fact that they always made his ice slides super stable. Which just isn’t practical. The center of mass, or center of gravity if you prefer, of an object is the point at which it acts as if all its mass were concentrated in that one spot. Ever tried balancing things on your fingers? If you have you’ll have found that you could only get things to balance at a specific sweet spot; the center of gravity. Where this sweet spot is entirely depends on the distribution of matter in the object. You can test this out for yourself, just get some random objects and try balancing away.

Bringing it back to the ice slides; the more Iceman extends them the further they move from their center of gravity, that being the ice mountain he set up for himself back at the start. With Iceman gliding across the top of the slide, the torque created would outweigh the strength of the slide itself and as a result that baby should crack. Avoiding this would be reasonably easy if he would just reinforce the underside of his slides with pillars, but he doesn’t.

TheX-Men #47 comics don’t ignore the fact that his feats are a physical implausibility though, they actually have Iceman himself address it which I quite like. The comic panel shown to the left is taken from The Uncanny X-Men #47[4]Credits and info on The Uncanny X-Men #47. It’s a fun little dig at the fact that yes, what he’s doing is physically impossible but Marvel know that.

It IS a comic book after all. Where would the fun be if it was all solely based on reality?

 

References   [ + ]

1. Iceman bio courtesy of Marvel
2. Credits and info on The Uncanny X-Men #1
3. Explanation of the Second Law of Thermodynamics
4. Credits and info on The Uncanny X-Men #47

Spider-Man : The Truth Behind All That Wall Climbing

Standard

SpideySo we’ve all seen/read/heard of Spider-Man[1]Spider-Man Bio courtesy of Marvel right? Geeky socially inept boy with an affinity for science gets bitten by a radioactive spider and hey presto; he’s suddenly developing all manners of cool powers. He’s got the proportional strength and agility of an arachnid, a spooky sixth sense that warns him of danger and the ability to cling to walls.

Now, this is a series that strongly relies on science as a means for heroes and villains alike gaining their powers, enhancements and weaponry. Meaning that over the course of this blog I will spend a fair bit of time wandering through the world of our friendly neighbourhood Spider-Man; but fear not, I will spread it out so if you’re not a particular fan of Spidey hopefully there’s something more up your alley coming soon.

If we entirely skip past what the realities of exposure to radiation mean for a human being for the moment, because frankly radiation is a popular theme in the comic book world and I intend to touch upon that with a whole range of characters later, I want to start with his famous wall climbing.

I’m sure that at some point in your lives you’ve all been sat in a room in your house, casually minding your own business when suddenly out of the corner of your eye you catch movement on the wall or ceiling. Lo and behold, it’s a spider. Hazarding a guess, I’d say you’re potentially panicking because you hate spiders or maybe you’re more like me and you’ve thought ‘How does it bloody manage that?’ The very simple answer is that those beasties are hairy.[2]A more thorough explanation of a spiders sticking abilities Insanely hairy. We’re talking they have hairs on their hairs kind of hairy here. Collectively, these individual hairs are called setae and they generally have over half a million of them all over their body. Setae alone aren’t what give them the ability to climb walls though; so in case any of you have visions of a spider being covered in pickaxe like hairs, gouging tiny footholds in your walls, stahp. Van der Waals forces are at work here; basically it’s similar to them being covered in hundreds of thousands of tiny magnets. Oppositely charged molecules that are microscopically close to each other enjoy a mutual attraction, thus keeping the crawly buggers attached to walls, ceilings, glass and so on and so forth.

Van der Waals

 

To bring that back to Spider-Man, some of you may remember that in the 2002 film there was a scene that showed us a lovely up close and personal image of Parker’s hands.[3] Spider-Man (2002 film) Sam Raimi Those hands had a smattering of short, thorn-like structures protruding from his fingertips.

Spidey

Spider-Man 2002

The assumption from this scene is that these structures act for Parker the same way that setae do for spiders. This would be great; if not for the fact that despite their proportional strength a spider tends to need at least 2 of their 8 legs on a surface to stay on it and that once the size of a spider increases to say oh, tarantula proportions the van der Waals force is no longer capable of holding them up. In fact, larger spiders actually secrete a small amount of silky adhesive from their feet[4]Tarantulas silky feet explained resulting in adorable little footprints as they walk over surfaces. Between that and the fact that I’m fairly sure MJ or Gwen would have, at some point, had something to say about those hairy, hairy hands the idea of him being capable of climbing surfaces like a spider starts to become less feasible.

Climbing surfaces like a gecko on the other hand; now that’s something I can get on board with. A gecko uses pretty much the same principle. The difference being however that a gecko is capable of remaining attached to a surface with one toe. Impressive huh? A gecko is so lightweight and has such an extreme number of these tiny hairs that the surface area their feet take up is huge in comparison to their size. In fact if a mature gecko could have all their hairs making contact with a surface at one time, it should, mathematically, be capable of supporting up to about 290lbs (roughly 20 stone).

Unfortunately, when it comes to all that wall climbing fun it would seem that Spider-Man really isn’t entirely spider like about it. Unless of course he does have some sticky excretions going on alongside that hair, but that doesn’t bear thinking about. No, it’s more like a Gecko-Man situation here. Don’t worry Spidey wannabes; scientists have already created materials more effective at creating dry adhesive than our lizard friends.[5]How scientists cracked wall climbing There’s hope for you yet!

References   [ + ]