It has got two spindly black legs attached to a backpack with long rectangular batteries on the shoulder blades and an armored computer in the small of its back. Amusingly, it has radiator fins instead of buttocks. The whole machine looks sort of like a human skeleton, because the legs and hips have joints that mimic the movement of human limbs.

In fact, when you strap your legs into its legs, you can walk, run, kneel, squat, dance, or whatever—the exoskeleton has a range of motion equal to that of a human being. You move, and it moves with you. But once on, it allows a regular geek to haul a 200-lb. backpack as if it weighed as much as a couple of physics textbooks.

Now we're talking.

Let me explain how I got here. In late 2007, a production company called me and asked if I'd like to host The Works, a show for the History Channel. My job, they said, would be to "explain, uh, how things work." During my cable TV stint, I raced lawn mowers in Florida, was shot at with a rifle while inside an armored car in Texas, and—best of all—I piloted an honest-to-God lower-body exoskeleton with the researchers at Berkeley Bionics in California.

And so, on an otherwise perfectly normal summer day, I dropped by a nondescript brick building where a group of former graduate students from the University of California at Berkeley were busy making last-minute tweaks to a dead-black titanium exoskeleton, and they invite me to try it on.

My first impression: The straps are too big. The HULC was built with military money and it is designed to fit army guys. And soldiers have big thighs, apparently. I yank the Velcro straps as tight as possible, then strap my shoes into its open-toed boots. I shrug on the backpack and clasp the chest strap. I am now wearing an exoskeleton. Turned off, the device is heavy; it's like wearing a scuba tank on dry land. But once the researchers switch it on, HULC stands up on its own—with me inside.

At this point, I'm still hanging from the ceiling, so I can't fall down. I can't feel any extra weight because the exoskeleton frame supports itself (about 30 lbs), as well as any attached backpacks. We turn on the treadmill and I cautiously bend my knee. Nothing happens. A half-second later, force sensors detect my leg pushing against the exoskeleton and the machine jerkily bends its knee. The delay is disconcerting; I can barely walk.

A couple minutes later, the treadmill is rolling and I'm humping along like Forrest Gump in his special shoes. Like a video game that breaks the human face down into just a few polygons, my new exo-walk consists of just a few gross movements. Knee lift, foot out, foot down. Repeat. It lacks the fluidity of my normal walk, but I don't fall. And oh yeah, every movement is accompanied by the loud whine of electric motors. Each step sounds like reeee (that's the motor) followed by ker-thump, as my foot touches down.

Reeee-ker-thump. Reeee-ker-thump. "Drop the gun," I say. "You are under arrest." (Yes, that's a Robocop joke, and it is hilariously funny.)

After the practice run, it's time to hit the hallway. I immediately notice that my gait is becoming more fluid. I can even balance on one leg. This is because the machine is learning to anticipate my every move. The HULC is no dumb brute. It is constantly sensing the force of my movements and forming a model of how I walk. It's getting to know me, exoskeleton-style.

The HULC is a finished product, along with a slew of other exoskeletons, such as the full-body Sarcos and the medically oriented Hal-5. But make no mistake, scientists have been trying to build robotically augmented limbs since well before Sigourney Weaver used a power lifter to kick alien butt.

Designs for wearable mechanical skeletons have been evolving since the 1960s, when General Electric foresaw using the Hardiman for heavy loading in factories. Sadly, the original designs were infeasibly power-hungry, requiring heavy batteries that pulverized the payload-to-system weight ratio. Even worse, the old designs didn't degrade gracefully, which is a nice way of saying that when the power failed, they would fall to the ground and rip your limbs off. Ouch.

But today, exoskeletons have become a reality and, according to the researchers, they don't suffer from the limb-ripping drawbacks of yesteryear.

Once my gait cycles a few times, HULC has formed a complete model. A researcher informs me that from this point onward, the exoskeleton can cycle through my walk all by itself. Yes, by itself. This means that I could fall asleep and it would keep walking, dragging my legs through the motions. Suddenly, I imagine a platoon of snoozing soldiers fast marching non-stop through dark jungles at an average speed of 7 mph, a fast jog.

That's creepy. Plus, I'm sweaty and exhausted; it's time to take off the exoskeleton.

A couple yanks on the Velcro straps and I'm out. But my legs feel dead, like I just spent an hour jumping on a trampoline. My helpful researcher lets me know that the goal of the exoskeleton is to minimize metabolic cost. Using your muscles costs oxygen, and the brain is stingy—it uses just enough oxygen to get the job done. Once your brain figures out that it needs less oxygen to move (thanks to the exoskeleton), it sends less oxygen. Without the exoskeleton, my brain isn't giving me enough juice to use my limbs normally, hence the weak legs. Luckily, it only takes a few minutes to go back to normal. Thank you, brain.

Despite the amazingness of it all, I have to say it felt clumsy and weird to lock my limbs into the machine's cold, robotic embrace. You won't catch me walking down any staircases in an exoskeleton. At least, not without a lot more practice.

Daniel H. Wilson is the author of several books, including How to Survive a Robot Uprising, Where's My Jetpack?, and Bro-Jitsu: The Martial Art of Sibling Smackdown. Wilson earned his PhD in Robotics from Carnegie Mellon University in Pittsburgh. His first novel, Robopocalypse, is forthcoming from Doubleday.

Video from The Works courtesy of The History Channel

This week, Gizmodo is exploring the enhanced human future in a segment we call This Cyborg Life. It's about what happens when we treat our body less as a sacred object and more as what it is: Nature's ultimate machine.

The full suit comes in three sizes, with the largest weighing 50lbs (though it seems you don't notice that when you're wearing it). It now looks like single and two leg versions will rent for about $1570 and $2300 per month.

Despite the tests, Cyberdyne still won't say when the HAL suit will reach the greater public. Check out the vid, the future looks super strange. [HPlus Magazine]

Older video showing the suit can help users lift up to 10x the weight they normally could:

I am not going to lie. What got me excited about HAL wasn't fashion. Besides the Kubrickian name, the allure was a long skinny laptop slot, with its own zipper access, right up against your back. The $120 pack (one size: medium) can hold a 17" MacBook Pro, or any laptop that's 15" wide and 11.5" from front to back. The reason for the separate zippered compartment should be obvious: Airports. No longer do you have to reach into a fully packed piece of luggage and pull out the most buried object. It's not exactly one of those TSA approved bags, but when I flew with HAL, I was pleased by its convenience.

HAL has a lot of pockets, a prerequisite of a gadget guy like me. Besides the laptop slot, there's a spacious main compartment for large objects, plus a nice series of pockets on the back face. One is the traditional "organizer" pocket, with lots of silky subpockets for precious items like checkbooks, passports and portable hard drives. There's an outer pocket—one I typically refer to as the "speed rack"—where I keep all sorts of odds and ends, SD cards, pens, 30-pin iPod cables, Flip cams and guitar picks. They fit.

There's also a funny side pocket, opposite the laptop slot, that I will identify as the "wine pocket" since it's just right for fitting a 750ml bottle of wine. Would you then attach a straw out of the zipper hole and then up over your ear, for quick drinking? I suppose it depends if the wine is white or red. (A 40oz might also fit, but I didn't have one handy.)

If you're more a fan of the wacky tabacky, you'll enjoy the little pocket on the back. It's subtle, but it's not exactly concealed. I mean, cops would probably look there (especially cops who read backpack reviews on Gizmodo), but it's probably a decent way to hide small amounts of contraband from your parents, guidance counselors and parole officers.

What's great about HAL is that it wears the bulk well, but doesn't look empty when it's empty either. I guess what I mean is that I am sick of backpacks that "show" like a pregnant lady, and this one hangs, nice and casual, whether it's empty or fully laden. And, on the fashion tip, it's got skinny straps. Apparently people like Buchanan think fat straps are uncool. I was not aware of this, but now I am.

I do have three complaints, mostly minor. There's no padding on the bottom of the bag itself, so carrying DSLRs and other expensive hardware takes some added caution. It may make sense just throw a rectangle of foam padding in there, to be on the safe side. As I said, the "speed rack" fits all of my fast-access crap, but it has a zipper that runs down the side, so there's a risk of losing said guitar picks and SD cards.

My final complaint may put me back in custody of the fashion police: There's no place to strap an umbrella or bottle of water on the side. Certain crap like that, I want to be able to access fast. I can put a dry umbrella in the side wine pocket (as you see in the pics) but what happens when it's wet? This may be me letting practicality get in the way of good style sense, and I'm willing to concede in order to keep up with the backpackerati—and in Buchanan's good graces. I just thought you should know. [Product Page]

In Brief

Stylish but not over the top; looks good full and empty

Enough variety of pockets to satisfy gadget geeks

Places to put both weed and wine

Not the cheapest backpack on the block, but quality makes up for some cost

Not enough padding in the main compartment

Nowhere to put a wet umbrella

Top photo by the multitalented Chris Mascari

You'll actually notice that all of the bags have laptop compartments—that's because going forward, laptop bags won't be a separate category for Timbuk2, but a "function" of all of their bags. All of them hold 15 or 17-inch laptops, depending on the size bag you get. Up top, respectively, is Hemlock, Q and Swig. Swig doesn't have the sideloading awesomeness that Hemlock and Q do, but it's the first backpack of Timbuk2's that you can personalize the colors on. They come out later this month. Here's all the details:

Hemlock
Made for the urbanite that needs a pack to schlep around town in style – from the office, to the rock climbing gym, to courtside at the game, the pack features a rolled, expandable top, Swing Around Access™, a side-access compartment designed to fit a 17-inch laptop (15-inch in the small) and signature Timbuk2 D-ring bottle opener. Available in solid, color block and the official camo of the Navy Special Ops and the retail price is $90 for Small and $100 for Medium.

Design features include:

* Durable Ballistic nylon
* Waterproof flap liner
* Compression straps
* Accessory attachment loops
* Quick access pockets under front flap
* Padded back panel
* Lightweight Ergonomic Shoulder Straps
* And stash pocket hidden in the back

"Q" Computer Backpack
Appropriately named after the gadget inventor of the Bond movies, the "Q" has a place for everything. This pack is designed to fit a 15-inch laptop with multiple grab handles for convenience and Swing Around Access™. Available in dark brown/black, army/spinach, rev red/gun metal, and black and the retail price is $100.

Design features include:

* Durable Ballistic nylon
* Swing Around™ access
* Padded laptop compartment
* Multiple grab handles
* Lightweight Ergonomic Shoulder Straps
* Pocket for cords and peripherals with outside access

H.A.L.
H.A.L. (Heuristically programmed Algorithmic Computer) is the "Q's" older brother, named after HAL 9000 of the Space Odyssey saga, which was capable of speech recognition, lip reading, art appreciation as well as maintaining all systems on the ship. Similarly, the H.A.L. almost thinks for its owner and easily runs a mobile office. Designed to fit a 17-inch laptop, the backpack has multiple grab handles and plenty of capacity as well as Swing Around Access™. Available in dark brown and black and the retail price is $120.

Design features include:

* Durable Ballistic nylon
* Swing Around™ access
* Padded laptop compartment
* Multiple grab handles
* Lightweight Ergonomic Shoulder Straps
* Pocket for cords and peripherals with outside access

Swig
A messenger-inspired carry-all pack built for dudes AND ladies (Hallelujah!). Two large internal compartments accommodate loads of stuff and the organization panel makes it easy to find your keys. This sleek pack features a front-flap closure that comes in two sizes to fit a 15- or 17-inch laptop with a dedicated padded laptop compartment and the signature Timbuk2 bottle opener. Available in black/gun metal, moss/camo, gun metal/blue, and dark brown/orange and the retail price is $80 for Small and $90 for Medium.

Other features include:

* Accessory attachment loops
* Waterproof flap liner
* Quick access pockets under front flap
* Padded back panel
* Lightweight Ergonomic Shoulder Straps
* And stash pocket hidden in the back
* Customizable beginning August 2009 at www.timbuk2.com

[Timbuk2]

This is great news for HAL's target market: Its ability to grant its wearer tenfold strength increases during specific actions could change the lives of people with degenerative muscle diseases, or accident victims who would otherwise need long, difficult rehabilitative therapy to regain basic mobility. And with a five-hour battery life, it could be quite practical for day to day use.

It's also great news for extreme hobbyists, certain factory workers and the children of the rich, who can enjoy near-full robotization for about $4200 when these things start rolling off the line. The first run, to be sold in Japan, is planned at 400 units, so unless you can make the case that your RoboCop fantasies are more important than giving a dystrophic Japanese child his legs back, you might still have a while to wait. [HPlus Magazine via Slashdot]

In the program, astronauts type their various psychological problems into a console, and a pre-recorded video therapist leads the astronaut through a series of likely solutions. The robot "helps astronauts identify reasons for their depression. Then the program helps them make a plan to fight the depression."

I know you're thinking "well, this is for astronauts, and lucky me, I'm totally unqualified for that kind of job. So I'm safe!" No such luck: the Virtual Space Station is not only being tested on civilians, but the designers hope it will become a widespread tool among those for whom a real, non-robot therapist isn't an option.

The biggest problem, aside from the robot gaining independent thought and slaughtering everyone in sight, is privacy. There isn't much guarantee that the astronaut's interactions will be kept secret, and in fact it seems a pretty likely guess that they'll be analyzed extensively. My biggest concern is that a scary robot will know about my intense fear of clowns and that weird dream I have about my third-grade teacher. [AP]

At the LaCie web site, we learn the 5big has five hot-swappable Serial ATA drive bays that, when fully loaded, can hold up to 7.5 terabytes of information.

There's some leeway on config options too, as the drives can be configured into RAID 5, RAID 5+Spare, RAID 6, RAID 10 and RAID 0. Additional external drives connect with USB 2.0 or SATA ports.

The 5big works with Windows, Mac and Linux at three different price points. The 2.5TB version is $899; 5.0TB clocks in at $1399; and 7.5TB will set you back $1899. Keep it away from airlocks, just in case.[Technabob]

The 22 pound battery-operated system is belted to your waist and captures brain signals through sensors attached to your skin. HAL supposedly works effortlessly with your muscles, increasing your strength up to 10 times the norm without turning you all jolty and robot-like. Think Iron Man instead of Robocop. If the price is a little too much for you, you can rent a cheaper option= one leg for $1,460.

But really, can you put a price on looking this good? [Daily Mail]

Using sensors attached to the skin, the suit supposedly moves effortlessly with your muscles and it has the capability of increasing your strength up to 10 times the norm. It also has a continuous operating time of about 2 hours and 40 minutes. As mentioned, the monthly rental fee has been set at $1000 which includes $300 for maintenance and upgrades. No word on whether or not they plan on selling these things outright, but I would be perfectly happy renting one and going all Hulk on my enemies for a month or so. [Cyberdyne via LovingtheMachine vie BotJunkie via Boing Boing Gadgets]

For those of you who will now have Mr. Roboto in your head for the rest of the day, enjoy the video after the jump.

[product via nerdapproved]