2. Juggernaut vs. Sticky Foam As superheroes go, Juggernaut is relatively straightforward. Once he starts moving, he’s more or less impossible to stop. The key to defeating Juggernaut, then, is immobilization, and what better way to tie him down than with huge gobs of sticky foam. The U.S. military has been working on a sticky foam vehicle disabling system which would absorb kinetic energy while clogging up engines and steering and trapping the driver inside. Spray a bunch of this stuff over Juggernaut, and he’ll have no choice but to come to a goopy halt.

3. The Hulk vs. Vehicle Arrestors Another superhero whose powers lie in mountains of muscle, The Hulk is slightly more susceptible to traditional methods of stopping fast moving, determined objects. The U.S. military is especially interested in ways of abruptly stopping (say) a truck full of explosives, and they’ve been using vehicle arresting systems like nets and bollards that have no problem completely shredding anything that messes with them. If these things can brush off several tons of steel moving at 60 mph, the Hulk doesn’t stand much of a chance.

4. Superman vs. Taser Shockwave According to

some sources, Superman (being the man of steel) is vulnerable to electricity. Good luck trying to get near him with a Taser, but you might have better luck with a Taser Shockwave, which is like six Tasers in one. You can even stack multiple units together and fire them remotely, if you want to be extra sure that you get him. And when you do manage to hit Superman with a Taser, all of those muscles of his that make him stronger than a locomotive won’t be able to do anything besides spasm uncontrollably.

5. Wonder woman vs. Metal Storm Wonder Woman has those awesome bracelets that she uses to stop bullets. She can even stop machine gun fire with them. At a couple hundred rounds per minute, she’s deflecting five or ten rounds per second. Okay, I can see that, she’s got super powers. But I’d like to see her try to go up against a
Metal Storm system, which uses multiple barrels of stacked projectiles to fire 1.62 million rounds per minute. That means Diana is going to have to figure out a way to stop 27,000 bullets every second. My advice? Go find your invisible jet (if you can) and flee.

6. Daredevil vs. Sonic Weapons There are two ways to go about defeating a superhero who depends on his hearing: you have to either be really, really quiet or really, really loud. Luckily, we’ve got a whole bunch of acoustic weapons at our disposal, from non-lethal sound cannons all the way up to explosive shockwave devices that can kill.

7. Human Torch vs. Blast Wave Extinguisher A superhero who lights himself on fire over and over may not be the greatest role model for impressionable fans, so it’s a good thing there’s some new tech that can snuff the Human Torch right out. The electric wave blaster fire extinguisher is a prototype device that uses bolts of electricity instead of water or chemicals to extinguish flames. Nobody’s really sure how it works (something about combustion products consisting of charged particles), but it does, and it disrupts the flames more directly than other methods. Zap. Next!

8. Aquaman vs. Robot Fish When he’s in his element, Aquaman is a fairly fearsome dude, what with his ability to summon marine life to do his bidding and all. You can strip him of this big advantage with a tiny robot shaped like a fish. NYU-Poly’s Dynamical Systems Lab designed this robot fish to hijack schools of live fish to keep them away from oil spills, dam turbines, or superheroes who probably don’t have their best interests in mind. Simply unleash your robots, and all of a sudden, all of Aquaman’s piscine posse will be busy swimming somewhere else.

9. Doctor Manhattan vs. Spacetime Cloaking Doctor Manhattan can see the past, present, and future all at once, which makes him a bit tricky to outwit. One solution might be to just remove yourself from the timeline completely with a spacetime cloaking device. By opening up a gap in light waves and then sealing it again, researchers have proven (yes, they’ve actually done this) that it’s possible to cloak an entire event from an observer. You’re not just hiding yourself; as far as the observer is concerned, whatever you do inside that light gap never actually happens. Take that, naked blue guy!

10. Iron Man vs. Microwave Weapons That’s a mighty fancy suit you’ve got on there, Iron Man. It would be a shame if it were to malfunction. The U.S. Military has been busy developing microwave beam weapons designed to confuse, and ultimately fry, computer systems. This includes bases, vehicles, computerized weapons systems, and yes, even fancy powered exoskeletons. Specifically, the Navy is looking to outfit drones with combination microwave sensors and weapons which could be integrated directly into the skin of the aircraft, and would be capable of delivering over a hundred gigawatts of energy in a nanosecond.

11. Captain Planet vs. Pepper Spray Rings The problem with having a superpower that relies on a piece of jewelry is that someone might be able to sneakily replace it without you knowing. Say, for example, replacing an Elemental Ring with one that fires pepper spray: “When the Five Powers combine, they summon Earth’s greatest champion, Captain- OW! MY EYES!” That’s right, instead of Captain Planet, those pesky Planeteers have just summoned “immediate temporary visual impairment, difficult breathing, coughing, choking, sneezing, severe burning sensations to the eyes, nose, throat and skin, and nausea, with acute symptoms and discomfort lasting for 45 minutes.” That’ll teach those meddling little environmentalists.

12. Magneto vs. 100 Tesla Magnet When you’re a mutant who can control magnetic fields, it’s probably pretty hard to pass up a new challenge, but if he knows what’s good for him, Magneto might want to let this one slide. Los Alamos National Lab has been working on a 100 tesla magnet, which is ridiculously powerful. At some two million times as strong as a refrigerator magnet, the hard part isn’t building it, it’s making sure that the thing doesn’t immediately destroy itself as soon as they switch it on, since a piece of this magnet about the size of a marble has as much energy as 200 sticks of dynamite. Give this to Magneto on his birthday or something, and watch it tear him to shreds.

13. Nitro vs. Porta Potty Everybody poops. Even superheroes. Nitro, whose superpower is the ability to explode and then reconstitute himself, is no exception. And if the only facility nearby when nature calls happens to be a Russian bomb-proof porta-potty, all you’ve got to do is lock Nitro in there while he’s doing his business and no amount of exploding and reforming will get him out.

1. The Flash vs. Riot Slimer The Flash may be faster than the speed of thought, but he’s gotta start somewhere. And if he starts (or tries to stop) on any of this slime, the only place he’s going is down, since it’s pretty much impossible to get any traction. The Southwest Research Institute has developed a "mobility denial system, aka "riot slimer," that sprays a special goop onto the ground. The goop sticks to everything except itself, and if people or vehicles try to get across it, the spin out of control and/or fall down. It’s not just effective, it’s also hilarious.