After the devastating 2011 tsunami, the Japanese government spent billions of zen to build this sea wall along the Sendai Coastline. It's almost 20 miles long.

In an Era of Superstorms, This Exhibit Captures Our Shifting Relationship with the Earth's Rising Seas

"Sink or Swim" shows how we're learning to be smarter and more resilient in our response to increasingly unpredictable oceans and rivers

Kids in a small Nigerian village line up to learn at the Hello Hub.

How Do Kids Learn Where There Are No Teachers? It May Take a Village...Computer

A non-profit called Projects for All has a plan for educating children without schools: Turn them loose on outdoor computer kiosks in their community

Artist Yoshi Sodeoka envisions musical instruments carried in satellites orbiting the Earth that would be able to “neutralize nations at war."

How Will We Make Music in 200 Years?

A group of innovators were asked to imagine what music will be like in 2214. If they're right, it could be pretty bizarre

This is how you build the world's first solar bike path.

A Bike Path Near Amsterdam Is Now Generating Solar Power

As cyclists ride above, solar panels embedded in the pathway pump energy into the power grid

Rub the label to see if the food inside is still good to eat.

A Label You Rub To See If Food Has Expired and Other Finalists for the Dyson Award

There's also a pen that lets you know when you should reapply your sunscreen and a device called Luke Stairwalker

The U.S. Navy expects to have swarm boats in operation as soon as next year.

Who Needs a Driver? These Navy Boats Are Programmed to Swarm Like Bees

Using algorithms based on the swarming behavior of ants and bees, the U.S. Navy is turning to driverless boats to protect its ships

More and more people are dealing with routine health ailments through video calls.

Need a Quick Diagnosis? A Prescription for What Ails You? The Doctor Will Video Chat With You Now

One of the hottest trends in health care is telemedicine networks of doctors who diagnose ailments over the phone

The movement to dramatically reduce car traffic is picking up speed.

Helsinki Has a Plan to Get People to Stop Owning Cars

A system being developed in Finland would allow people to subscribe to all kinds of mobility options and pay for everything on their phones

Russian artist Dmitry Morozov has devised a way to make pollution beautiful.

7 Ways Technology is Changing How Art is Made

Technology is redefining art in strange, new ways. Works are created by people moving through laser beams or from data gathered on air pollution

New devices like FreeWavz are taking headphones to another level.

These Ear Buds Will Play Music and Track Your Heart Rate

Wristbands get all the attention, but souped-up earpieces can do a better job of tracking your body metrics when you work out

Handlebars on the Blackline model let you know when to turn.

What a City Bike Needs: Handlebars That Let You Know When to Turn

Designers are transforming bikes with new tech to make it safer and easier to navigate city streets

Pedestrians cross London's Millennium Bridge at dusk toward the lit dome of St. Paul's Cathedral.

How to Plan the Most Beautiful Stroll Through a City

A team of researchers has used crowdsourcing to develop an algorithm that can map out the most eye-pleasing walks

Scientists are looking to restore memory by stimulating neurons deep in the brain.

Could Implants in the Brain Revive Memory?

The Defense Department is funding research to see if "neuroprosthetics" implanted in the brain can heal damaged memory.

The TellMeDave robot is designed to take orders.

Robots Are Smart—But Can They Understand Us?

Researchers at Cornell are developing a new way for the machines to interpret the imprecise way humans speak

The Scoop works like a mini sound mixer.

Having Trouble Hearing? There's An App For That

Called the Scoop, this earpiece is a mini-mixer, allowing the wearer to adjust to his or her environment.

Mapping a child's genome could be something available to all parents in the coming years. But is the procedure always good?

Will Genome Sequencing Make Us Smarter About Dealing With Diseases in Our Genes—Or Just More Anxious?

Doctors could use our genetic map to pinpoint the best treatment for our diseases. But how much do we want to know about what's lurking in our DNA?

10 Things We've Learned About Dads

Among them: Fathers who want their daughters to aspire to greatness should help more with the dishes

The Solar Impulse 2 in flight

Can a Plane Fly Around the World on Solar Power Alone?

With a wingspan greater than a 747, but weighing less than most cars, the Solar Impulse 2 will attempt to circumnavigate the planet.

Military robots are being built with plenty of firepower. But should they be trusted to kill?

Can Killer Robots Learn to Follow the Rules of War?

Researchers have set out to learn whether military machines can be programmed to behave morally, and if so, should have the authority to kill on their own

One 4D concept: underground pipes that change shape to help move water.

Forget the 3D Printer: 4D Printing Could Change Everything

Scientists at MIT are using a new technique that could print responsive objects—from water pipes to sneakers—that adapt to their surroundings on their own.

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