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Lightsaber

JediBot uses Kinect to control lightsaber

You spent countless hours locked in lightsaber battles with your buddies while growing up. What happens when there's no one left to play with you because they all have jobs and babies? You make your own Star Wars playmate.

Students at Stanford University programmed a robotic arm dubbed the JediBot. The bright orange arm swings a red foam lightsaber against a human opponent. It gets off surprisingly snappy attacks with some decent robotic muscle behind it.

It's one thing to create an arm that goes on the offensive, but another to build one capable of defense as well. That's where the Microsoft Kinect comes in. The opposing lightsaber is green so that the Kinect sensors can pick up on where it is in space. The JediBot uses that information to plan its defensive maneuvers.

Related link • A Star Wars video game unlike any other

The robotic arm--which can swing its sword about once every two to three seconds--was created for a 3.5-week Experimental Robotics course. The class also produced a robot that grills hamburgers and even adds the ketchup. The only thing that would make the JediBot better is if it battled you to a draw and then offered you a tasty cheeseburger.… Read more

The 404 645: Where no one will buy this (podcast)

During this year's Celebration V fan convention, director George Lucas announced that all six of the original "Star Wars" films will be released on Blu-ray in 2011 as a box set. The films and the much-criticized prequels were previously released as DVD box sets, but this is the first time fans of the series can see them in HD.

The Blu-rays will also include new documentaries, special features, and behind-the-scenes moments that both Jedis and Imperialists can appreciate. Lucas also announced the inclusion of a lost scene from "Return of the Jedi" that shows Darth Vader calling out to Luke as he builds the green lightsaber you see in the film. Good news, though: if you can't wait a year for the box set to come out, the clip is also available on YouTube--with George's approval, of course!

Good news for Android users: Last week Google re-released the app formerly known as Voice Search for its mobile operating system. The app is called Voice Search, and it lets you dictate text message, write e-mails, map directions, play music, and make phone calls--all without ever touching the phone. It's free, so we can't pick it apart too much, but once the initial "cool factor" wears off, we're not sure we'd ever use voice commands outside of a car. More importantly, when the heck is Angry Birds finally coming out for Android?

In line with today's Star Wars theme, check out these custom 404 Podcast squadron helmets made exclusively for our show by Props Guy Jim! Dedicated fans of the show will remember Jim's work with the Yu-Be-Gone Bug Spray, The 404 temporary tattoos, and, of course, The 404/Mattel hoverboard from "Back to the Future"!

Click through for more pics of the X-Wing helmet after the jump! Thanks Jim!

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Crave 10: Barbie likes to watch (podcast)

On this week's Crave vodcast, we attempt to answer the pressing question of which is creepier: a Barbie cleavage cam or a machine-gun-wielding security cam. Either way, a camera's gonna getcha. Also on tap are a wide array of robotic walking aids, from an even lazier version of the roller shoe to sweet bionic legs for the disabled and the military. Plus, Jasmine thinks a killer drone is cute, Donald geeks out on a Super Mario star tattoo, and Eric is just...Eric.

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Crave 09: Bendy bikes & music showers (podcast)

What's not to crave about a pole-dancing bike? We can think of a few things, actually, but it's still pretty cool. Donald, Eric, and Jasmine also have a go at a supersimple phone for Luddites and get very serious about George Lucas's neck fat. Plus, Jasmine wants to take a ride in GUSS, Donald has a massive crush on a limbless robot, and Eric wants to take a date to Burger King. Finally, a little bit of ear candy for the MP3 Insider holdovers with some knobtastic speaker furniture.

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Crave 08: Back to the Futurama (podcast)

Eric Franklin once again invades the Crave podcast and is more than happy to provide his opinion on how unrealistic our latest Lego obsession is. Jasmine, on the other hand, is utterly unimpressed with the DIY power laces that aim to mimic the sweet Nikes from "Back to the Future II." But the tone turns hopeful when we get to Donald's army of beer-o-matic robots, and we're all a little taken with two sweet keyboards that take two totally different tacks.

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Crave 07: Go go gadget paper (podcast)

Despite the fact that everyone else is talking about it, Donald and Jasmine can't help but be a little repetitive and froth at the mouths over Hulu Plus, a new app and premium service from the popular video-streaming provider. And of course, no Crave podcast would be complete without a little robotic action, and we're particularly fond of Emily. Also on deck: a tiny hypercolor man and a DIY Hello Kitty gadget that's sure to send Japanese teeny boppers screaming for the hills.

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Crave 06: The trouble with lightsabers (podcast)

This week, Donald and Eric debate the dangers of robots, geodesic playgrounds, and real-life lightsabers. Plus, we take a look at some invisible cables, giant air multipliers, Catan for Microsoft Surface, and the e-reader's race to the bottom.

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Working 'lightsaber' can set fire to your skin

Sometimes the word "why?" is just an exclamation. We don't really expect an answer. We just wish something hadn't happened. Yet, perhaps you might be able to answer the "why" part of this question: Why has a laser manufacturer produced a Star Wars-ish laser that it proudly describes as being "the most dangerous ever created"?

I am indebted to Canada's National Post, which came across a product that really makes one wonder. It is called the Spyder III Pro Arctic.

Its manufacturer, Wicked Lasers of Shanghai, is rather excited about its potential.

May I quote its Web site? "Don't let the Arctic name fool you, this laser possesses the most burning capabilities of any portable laser in existence. That's why it's also the most dangerous laser ever created."

Personally, I didn't let the name fool me. You see, just below this claim to success, Wicked Lasers offers a very bright yellow warning: "Extremely dangerous is an understatement to 1W of laser power. At close range, this Class 4 beam will cause immediate and irreversible retinal damage."

Oh, and "it will blind permanently and instantly and set fire quickly to skin and other body parts."… Read more

The 404 576: Where milk was a bad choice (podcast)

The air conditioner in the studio where we record the show might be broken, but we're sweating it out this morning to bring you this Friday's episode of The 404 Podcast.

Yesterday, we talked to Jasmine France about her new Tech Dos and Don'ts column on the MP3 Insider blog and we all left the show convinced there's an online dating Web site out there for everyone's interests, no matter how niche...and we were right!

There's a new e-Harmony-style dating Web site called Cupidtino marketed specifically for Apple fanboys and girls to meet up and share a love for all things Apple...and hopefully each other! The site is still in beta and set to launch next month; everyone's invited, but with a catch--the only way you can access the site is through Safari and iPhone/iPad apps! Apologies in advance for Wilson's silence during this segment--that profile ain't gonna write itself.

Google already occupies a big part of everyone's past and present lives on the Internet, but the company is now setting its sights on predicting the future. It is heavily investing in a company called Recorded Future, a Web application that gathers data from financial markets, geopolitical news, industry changes, public figures, technology news, and others to create a rough sketch of the future.

If it works, Google stands to gain valuable insight into the ever-changing tech industry, but we tend to agree with sites like Mashable, which predicts the app will have the "same level of accuracy...as a weather report. Google Weather, anyone?

The second half of the show is all about predicting the immediate future of the podcast, which is pretty easy when you've been doing it everyday for three years. We have a special treat from today's e-mails from the public from listener Jack W., who sent us a video of his high school's annual lightsaber battle!

Only slightly less nerdy than LARPing, over 400 kids gather every year in the quad at Brophy College Prepatory to bang their light-up sticks together in celebration of their commitment to a movie that came out 20 years before their birth. Happy fighting, kids!

Have a great weekend, and don't forget to call us up at 1-866-404-CNET over the weekend and leave a voice mail. If it's good, we'll be happy to play it on the show!

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Hailing frequencies open: VoIP Star Trek communicator engages nerd cred

Command your own fleet of nerds with this replica of the original Star Trek communicator, and guess what? It also happens to double as a VOIP phone, meaning you can use it to actually talk to another human being using Skype, AOL Instant Messenger, iChat, etc...

Bad news, though: unfortunately, the device does not have built-in Wi-Fi, so you must use USB for connectivity...worst. communicator. ever. Good news, though! Whoever designed this replica had the foresight (and the fear of vengeful Trekkies everywhere) to include buttons that play sound effects from the original series and a real mesh flip … Read more