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This week in Crave: The brainiac edition

This week, we used zombies for target practice, viewed the world through a 60-foot kaleidoscope, and turned a 21-story building into a giant game of Tetris.

Too busy perfecting your new machine-strength handshake to keep up with Crave this week? Well, put down those robo-powered fingers and take a moment to grasp these top stories.

• That giant game of Tetris? It's actually an MIT building.

Charles Babbage's brain
This brain belonged to Charles Babbage, who invented the famed Difference Engine. Click on the image for more on brains. London, Hunterian Museum, Royal College of Surgeons

• Samsung's getting into the lucrative mind-reading brain implant business.

• And while we're on the subject of braaains...

• Prepare for the apocalypse with bleeding zombie shooting targets.

• Major sci-fi publisher to DRM: So long!

• Sailing, sailing, over the ocean blue -- in a ship with energy-saving metal sails.

• Take that, Mitt! It's Ron Paul, the video game.

• We're going to review a MakerBot 3D printer. But first up, unboxing and assembly.

• Google's Project Glass: Ambitious, innovative, and almost certainly hazardous.

• This crazy-cool DIY cell phone has something for everyone.

• Preview of "The Hobbit" in 48fps gets mixed reaction.

• A 60-foot kaleidoscope? That's a whole lot of kaleidoscope.

• So, where do you fall on the spectrum of alien UFO belief?

• Don't delay. There's still time to snag a Super Mario gift pack in this week's giveaway.

• Got something to tell us? Write to us at crave at cnet dot com. And be sure to follow us on Twitter: @crave.