This Is Why 4D Printing Is Cool

The U.S. Army Research Office has just thrown some money the way of 4D printing—but what, exactly, is all the fuss about? This beautiful video goes a long way to showing us why the technology is so exciting.

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Unbelievable Photos of the Most Challenging Structural Relocations Ever

Unbelievable Photos of the Most Challenging Structural Relocations Ever

And you thought your last move was difficult. The process of moving a large building, from a mansion to a railway station, from one location to another is a major engineering challenge. Here are some eye-popping photos of massive structures in transit.

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MIT’s New $500 Kinect-Like Camera Even Works With Translucent Objects

MIT's New $500 Kinect-Like Camera Even Works With Translucent Objects

Microsoft’s Kinect is great, but it has its limitations. Not so MIT’s new nano-camera, though, which uses similar technology but can weave the same magic with translucent objects, and even work in snow or rain.

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Scientists Have Figured Out How to 3D Print Batteries

Scientists Have Figured Out How to 3D Print Batteries

Guns? Sure. Airplane engines? Why not! But 3D printing batteries has caused some headaches among researchers—until now. Because new inks and tools are making 3D-printed lithium ion cells a very real possibility.

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This Rollerball Pen Lets You Draw Conductive Circuits

This Rollerball Pen Lets You Draw Conductive Circuits

Forget printing circuits: how about drawing ’em instead? At least, that’s what you can do with this rollerball, which spews out conductive silver ink to let you doodle circuits all day long.

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The OLEDs of the Future Could Be Inkjet Printed

The OLEDs of the Future Could Be Inkjet Printed

In the future we should hope for all of our displays to be OLED; it’s thin, light, deep with color, and energy efficient to boot. It’s also incredibly expensive. That could soon change, though, thanks to a jumped-up inkjet printer.

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This New Li-On Battery Packs More Power and Is Way Safer, Too

This New Li-On Battery Packs More Power and Is Way Safer, Too

Li-on batteries are great and all, but there’s a barrier preventing them from storing much more power: they, um, tend to catch fire. But a company called Solid Energy claims to have developed a technology which makes the power source both more energy dense and safer, too.

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China’s Suspension Giant Is 3,500 Feet Longer Than the Brooklyn Bridge

China's Suspension Giant Is 3,500 Feet Longer Than the Brooklyn Bridge

The Yangtze River is the third longest in the world and it’s served as a critical artery in the beating heart of China’s economic boom. It’s also incredibly wide at points—which has forced China to become a top contender as the builder of the most advanced long-span bridges in the world. Taizhou Bridge is definitely one of those bridges.

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Artificial Photosynthesis: Making Cheap Hydrogen From Water and Light

Artificial Photosynthesis: Making Cheap Hydrogen From Water and Light

Hydrogen is one of the most promising fuels of the future but right now it’s expensive to produce in bulk. Enter the work of a team of Stanford researchers who believe they can make it as cheap as fossil fuels—using just some water and sunlight.

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What’s the Ink in a Standard Rollerball Pen Made Of?

What's the Ink in a Standard Rollerball Pen Made Of?

You probably have no idea where the ink in your pen comes from, much less whether it’s a simple factory process or demanding of more expertise. Josh Velson, a chemical engineering consultant for bio and petrochemicals, has your answer.

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