Cutting Edge

Tuk-tuks are a common way to get around in many Asian cities, but they contribute to urban pollution and high fuel costs.

Tokyo-based startup Terra Motors wants to put more non-polluting vehicles on the streets with an electric tuk-tuk unveiled this week for the Philippines.

The blue and white "e-tricycle" is powered by a lithium-ion battery and can carry six people including the driver. It's just under 11 feet long and is steered with handlebars.

It can travel some 31 miles per 2-hour charge, according to the firm, which is hoping to become the world's top electric tuk-tuk maker. … Read more

The Solar Impulse has defied all expectations in its short four-year life.

First, the solar-powered airplane got off the ground in 2010 and stayed aloft for a total of 87 minutes without using a drop of fuel; then, it completed its first international flight traveling from its home of Switzerland to Brussels in about 13 hours. By its first birthday, the plane met the goal of staying aloft for 24 hours -- flying at night with solar energy captured during the day. It has since completed a 1,550-mile journey from Madrid, Spain, to Rabat, Morocco.

Now, before it embarks … Read more

Scientists cite as a major driver of climate change the large amount of carbon dioxide in the Earth's atmosphere that's created by the burning of fossil fuels. They spend day after day trying to figure out a way to generate power for the world's populations, but at the same time leave a smaller carbon footprint.

Now, researchers at the University of Georgia say they've hit upon a way to take the carbon dioxide in the atmosphere and turn it into useable industrial products. The impact of such a discovery is potentially huge.

The goal is to remove the CO2 directly from the air and turn it into biofuel -- not only helping power the world, but hopefully taking down global temperatures at the same time.

The researchers essentially have created a microorganism that acts like a plant that removes the carbon dioxide from the air and turns it into something we can use. During photosynthesis, plants utilize sunlight, water, and carbon dioxide from the air to create their food source. This would behave in a similar fashion. … Read more

Editor's note: This is the third part of Crave's four-part series on Ecuador's attempt to become Latin America's hub for science, technology, and innovation. Read part 1, "Plotting the next Silicon Valley -- you'll never guess where," and part 2, "New Silicon Valley in the Andes: Promise and paradox."

QUITO, Ecuador--Right now, I'm one of the final things standing between Ramiro Moncayo and a vacation he's been waiting to take for years. It's just a few days before Christmas, and needless to say, he is very excited about the couple of days he is about to spend with his family on a holiday getaway.

Moncayo is the project manager for Yachay, the ambitious planned city that the equally ambitious government of Ecuador's leftist President Rafael Correa has been trying to shove into existence for a few years now.

Since taking office just a half decade ago and with the help of a fountain of oil revenues, Correa and company have modernized the nation's highways, created the third-fastest growing economy in Latin America, and more than tripled the number of Ecuadorian citizens connected to the Internet, according to the president's office.

Next up on the industrialization to-do list: Ecuador plans to create the first top-tier research university in Latin America and surround it with all the facilities and human capital needed to make this developing nation, which is roughly the size of the state of Colorado, a global player in science, technology, and innovation. (There is, however, some reason for skepticism, as I mention in part 2 of the series.) … Read more

When we first set eyes on the Telenoid, we were convinced it was not a gadget we'd be comfortable having in our lives. The robot was designed as a telepresence interface; it would act as a sort of speaker phone, expressing emotions and giving you a human face to speak to.

The "human" part needs a little work.

Apparently, though, the Telenoid R1 is perceived as less strange when presented as alien in origin. While on display at the Ars Electronica Futurelab in Austria, visitors received a leaflet about the robot. Each leaflet contained the same information about the robot's functions, but contained one of two different origin stories, or no origin story at all.

The first story was completely dry and straightforward, describing the robot as "a communication robot that could become an alternative for mobile phones or video conferences within a few years time."

However, the second -- the one that made visitors most receptive to the robot -- was described it as a creature from outer space. … Read more

TOKYO--The crowd lining the end of Tokyo Station's platform 22 is four people deep.

They're jostling for position with their cameras -- trainspotters, parents, and children alike -- to get a shot of Japan's latest bullet train: the Series E6 Shinkansen, known as the Super Komachi.

They all bought tickets for the privilege of entering this part of the sprawling terminal that serves 380,000 passengers daily, and operator JR East has to deploy extra security guards to keep them a safe distance from the glistening new locomotive.

With services to northern Japan on the Akita Shinkansen Line, the Super Komachi debuted earlier this month as one of Japan's fastest commercial trains.

It has been traveling at 300 kph (186 mph) and will eventually run at 320 kph (198.8 mph), also the new operational speed of the Series E5 Hayabusa, among the world's fastest along with France's TGV. … Read more

Editor's note: This is part 2 of an exclusive four-part Crave series on Ecuador's plans to transform itself into a new hub of science, technology, and innovation. Read part 1, "Plotting the next Silicon Valley -- you'll never guess where."

GALAPAGOS ISLANDS, Ecuador--There's a small group of solar panels set up next to a giant tortoise hatchery that's currently under renovation here. It wasn't many decades ago that these remarkable gentle giants -- which never stop growing and can live to be 150 and the size of a kitchen table -- didn't need help from humans to survive in their native habitat.

Ironically, it is the other species humans brought with them to this remote volcanic Pacific archipelago that have endangered these tortoises. Dogs, pigs, goats, rats, and even ants all prey on young tortoises here, making it virtually impossible for them to survive their first few years in the wild. Instead, they're raised in facilities like this one near the Charles Darwin Research Station.

There's plenty more paradox to be found on the Ecuadorian mainland. … Read more

MOUNTAIN VIEW, Calif. -- While hobbyist use of drones is all the rage these days, there are few ways for commercial or enterprise customers to get unmanned aerial vehicles (UAVs) in the air.

But that's what Airware, one of the startups in the winter 2013 Y Combinator class, showed off at Demo Day today.

The Newport Beach, Calif., company aims to give commercial companies an easy-to-use development platform that will get their purpose-built drones up and flying in no time. Airware's platform comprises both on-board hardware and software, founder Jonathan Downey said. It also features elements that all … Read more

With 3D printing growing ever more powerful, it's really only a matter of time before a 3D-printed house arrives. So far, we've seen Dutch firm Universe Architecture announce its 3D-printed Landscape House, modeled after a Mobius strip. London firm Softkill pooh-poohed Universe's design, since it will use poured concrete in 3D-printed molds, and presented its own spiderweb-Skeletor ProtoHouse.

Not to mention the European Space Agency's plans to 3D-print a moon base, a sort of extraterrestrial abode for astronauts.

Now another Dutch firm has stepped up to the plate. DUS Architects has announced that it will make … Read more