Cutting Edge

X-51A Waverider hits Mach 5.1 in final flight

The final flight of the U.S. Air Force's X-51A Waverider program wasn't a long one, but it was long enough.

The Air Force cheerfully announced Friday that the scramjet-powered X-51A flew for more than six minutes earlier this week. Of that total flight time, partner Boeing said, three and a half minutes was done on scramjet power and the vehicle reached a top speed of Mach 5.1, which pushed it into the hypersonic range that researchers had been hoping for.

The accomplishment marked the longest flight for the $300 million X-51A technology demonstration program and, the … Read more

The Week in Pictures: Atomic movies to galactic storms

Today, we're looking back at some of the most memorable photos of the week. From the geeky to the grand, these are the images from the week's tech stories that stood out, defining the future and all that the world might become. There were gigantic storms on Saturn, 3D printed ears, and Google's new heads-up, augmented reality interface, Glass, which is expected to make it's way to public availability next year. Being made available in limited release, it's decidedly very geeky, and a little weird. Virgin Galactic reached an important milestone when the commercial passenger … Read more

NASA wants to send your best haiku... to Mars

For its trip to Mars, NASA wants haikus like this, Why? Because it's cool.

That's pretty much the gist of this whole story, actually. Maybe I should start composing all stories in the form of a haiku to save us all time.

It's no joke, though, that NASA really is collecting submissions of three-line poems from the public to send into space aboard the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, which will launch later this year for a mission to study the Red Planet's atmosphere.… Read more

Shine on: Solar Impulse plane begins journey across America

Following a bicycle down the runway at Moffett Field in Mountain View, Calif., a solar-powered airplane took off on a coast-to-coast voyage across the U.S. this morning to promote the message of clean technology.

Piloted by Swiss aviator Bertrand Piccard, the Solar Impulse HB-SIA set off for Phoenix, Ariz., on the first leg of its Across America journey that will also take the slender craft to Dallas, St. Louis, Washington, D.C., and finally New York in early July.

The goal is to go from one end of the country to the other without using a drop of fuel. … Read more

World's first 3D-printed gun makes its debut

Many believe that the future of printing is in 3D, which enables companies and even novices to design whatever they want and "print" it into a real-world device.

Now, a group has a proof-of-concept that such a dream could be a reality. Only this device is a gun.

Defense Distributed, a Texas-based group working toward nonprofit status, has given Forbes images of what is being called the world's first 3D-printed handgun. The gun is capable of firing standard handgun rounds and is made entirely of plastic, except for a nail that's being used as a firing … Read more

How to wear Google Glass like a pro

Mobile tech consultant Lisa Oshima has been sporting Google Glass every day for about two weeks after being selected in the Google lottery, shelling out $1,500 and getting fitted at Google (where she discovered her ears weren't as symmetric as she thought).

Here is some of what she has experienced, observed, and learned.

Her wow moment: taking a picture with just her voice.

The three things she wants Google to change about Glass now: add Twitter, add Facebook, and extend the battery life.

The battery drains the fastest for her: when she takes a lot of video or … Read more

Robot bees take first flight

After more than a decade of work, Harvard University researchers have finally gotten the so-called "RoboBee" to take flight.

According to the scientists, the robot -- which is half the size of a paperclip and weighs less than a tenth of gram -- was able to hover for a few moments and then flew on a "preset route through the air."

"This is what I have been trying to do for literally the last 12 years," Robert J. Wood, principal investigator of the National Science Foundation-supported RoboBee project, said in a statement. "It's really only because of this lab's recent breakthroughs in manufacturing, materials, and design that we have even been able to try this. And it just worked, spectacularly well."… Read more

Printable bionic ear sends hearing to the dogs

Using off-the-shelf 3D printing tools, silver nanoparticles, and cell culture, scientists at Princeton University have created a functional bionic ear that can detect radio frequencies far beyond the normal human range.

Living, 3D-printed tissue has been in the news a fair bit recently, but this is the first attempt at creating a fully functional organ with embedded electronics.

"In general, there are mechanical and thermal challenges with interfacing electronic materials with biological materials," said Michael McAlpine, an assistant professor of mechanical and aerospace engineering at Princeton and the lead researcher on the project. "Previously, researchers have suggested some strategies to tailor the electronics so that this merger is less awkward. That typically happens between a 2D sheet of electronics and a surface of the tissue. However, our work suggests a new approach -- to build and grow the biology up with the electronics synergistically and in a 3D interwoven format." … Read more

A better button-down? Entrepreneur promises self-cleaning shirt

A new shirt being touted as "the better button-down" aims to make laundry as we know it a thing of the past. The entrepreneur behind it claims it never wrinkles and can be worn over and over, without being washed.

Marketing grad Mac Bishop, 24, says his shirt not only looks good, but is soft to the touch, resistant to wrinkling, and odor-free. To prove it, he wore one of the shirts for 100 days in a row without washing it.

"I've (run) 4 miles in this shirt, I've biked 5 miles in this shirt, I've thrown it on after a basketball game," Bishop told CBS News. "It airs out. It's the miracle fiber." … Read more