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Category: transportation – Page 615

Photonic propulsion cuts Mars travel time

Recent advances in lasers suggest that we may see rockets propelled by light earlier than we had imagined. NASA scientist Philip Lubin and his team are working on a system that would use Earth-based lasers to allow space travel to far-away places in just a fraction of the time needed with current technology.

Using earth based lasers to push along a spacecraft instead of on board hydrocarbon-based fuel could dramatically reduce travel time to Mars, within our lifetime. Currently, it takes five months for a space craft to reach Mars. But, with photonic propulsion, it is likely that small crafts filled with experiments will reach Mars in just 3 days. Large spaceships with astronauts and life support systems will take only one month, which is about 20% of the duration of a current trip.

What’s next? Lubin believes that we may be able to send small crafts with scientific experiments to exoplanets as fast as 5% light speed in, perhaps, 30 years. Eventually, he claims that the technology will carry humans at speeds up to 20% light speed.

Read about it here.

Why Self-Driving Cars Really Shouldn’t Ever Have Steering Wheels

The head of Google’s self-driving car division made headlines recently for asking federal regulators to permit a vehicle without human-facing features like a steering wheel. Now he’s made a very good case for why no autonomous vehicle should have these things at all.

In an interview with NPR that aired today, Google’s Chris Urmson hit home the point that it’s simply not a good idea to any to have any kind of human-oriented controls in self-driving cars:

You wouldn’t imagine that in the back of a taxi, we put an extra steering wheel or brake pedal there for the passenger to grab ahold of anytime. It would just be crazy to think about doing that. But at the same time, I could imagine that there are vehicles where most of the days you don’t really want to drive it, so let it take you to and from work in the morning, for example, but on the weekend when you get a chance to get out onto some open road, that you might enjoy driving in that location. But I think the idea that you want the person to jump in who hasn’t been paying attention or maybe had a couple of drinks with dinner and then jump in to override is probably not the right idea.

Quantum physicists turn to the dark state

“Suppose you want to travel from Helsinki to New York and you have to change your flight in London,” explains Sorin Paraoanu. “Normally you would first fly on a plane from Helsinki to London, then wait for some time in the airport in London, then board the flight London-New York. But in the quantum world, you would be better off boarding a plane from Helsinki to London sometime after the flight London-New York took off. You will not spend any time in London and you will arrive in New York right at the time when the plane from Hesinki lands in London.” This is mind-boggling but the experiment shows that it is indeed happening.

Besides the relevance for quantum computing, the result also has deep conceptual implications. Much of our understanding of the reality is based on the so-called continuity principle: the idea that influences propagate from here to there by going through all the places in-between. Real objects don’t just appear somewhere from nothing. But the experiment seems to defy this. Like in a great show of magic, quantum physics allows things to materialize here and there, apparently out of nowhere.

The team would like to acknowledge the excellent scientific environment created in the Low Temperature Laboratory (part of OtaNano) at the Department of Applied Physics.

Proven one-step process to convert CO2 and water directly into liquid hydrocarbon fuel

Our next step is to develop a photo-catalyst better matched to the solar spectrum,” MacDonnell said. “Then we could more effectively use the entire spectrum of incident light to work towards the overall goal of a sustainable solar liquid fuel.

A team of University of Texas at Arlington chemists and engineers have proven that concentrated light, heat and high pressures can drive the one-step conversion of carbon dioxide and water directly into useable liquid hydrocarbon fuels.

This simple and inexpensive new sustainable fuels technology could potentially help limit global warming by removing from the atmosphere to make fuel. The process also reverts oxygen back into the system as a byproduct of the reaction, with a clear positive environmental impact, researchers said.

“Our process also has an important advantage over battery or gaseous-hydrogen powered vehicle technologies as many of the hydrocarbon products from our reaction are exactly what we use in cars, trucks and planes, so there would be no need to change the current fuel distribution system,” said Frederick MacDonnell, UTA interim chair of chemistry and biochemistry and co-principal investigator of the project.

Mark Zuckerberg Offers These Predictions for the Future of the Internet

On Monday at the Mobile World Congress in Barcelona, Mark Zuckerberg partook in what he thought would be a “fireside chat” with Wired’s Jessi Hempel but which was verifiably not fireside, and was, actually, a keynote.

Inverse picked out the best nine moments of this interview.

1.) Zuck doesn’t know that Aquila will meet regulations but is just confident that it’ll work out

Zuck reported that Aquila, Facebook’s casual wifi-beaming, solar-powered drone project, is coming along well. A team is currently constructing the second full-scale drone — which has the wingspan of a 747, is only as heavy as a car, and will be able to stay aloft for as long as six months — and another team is testing large-but-not-full-scale models every week. These drones will transmit high-bandwidth signals via a laser communications system, which, he says, require a degree of accuracy on par with hitting a quarter on the top of the Statue of Liberty with a laser pointer in California. The goal, he added, is to get these drones beaming wifi that’s 10 to 100 times faster than current systems. Facebook will roll out its first full-scale trials later this year, and Zuck expects that within 18 months, Aquila will be airborne.

Russian Army to Introduce New ‘Robot Warriors’

Russia’s NextGen Robots are coming.

Russian military institutions are working on a program of robotization of the army that will introduce combat robots able to act independently on the battlefield, deputy head of the Defense Ministry Pavel Popov said in an interview with the Moskovsky Komsomolets newspaper.

Special military units of robots will be operated by a united control system, Popov said, adding that many robotic and pilotless vehicles are already employed in the Russian military.

Military expert Viktor Murakhovsky confirmed that Russia is actively developing new robotic machinery, though the concept is not widely discussed, Moskovsky Komsomolets reported.

Visa thinks your car should pay for its own fuel

The jury may still be out on the usefulness of the Internet of Things, but payments giant Visa is 100 percent sure that it doesn’t want to miss out. Today, it announced plans to push Visa payments into numerous fields. We’re talking “wearables, automobiles, appliances, public transportation services, clothing, and almost any other connected device” — basically anything that can or will soon connect to the internet.

Visa imagines a future where you’ll be able to pay for parking from your car dashboard or order a grocery delivery from your fridge. It makes sense, then, that Samsung is one of the first companies to sign up to the Visa Ready Program, alongside Accenture, universal payment card company Coin and Fit Pay. Chronos and Pebble are also working to integrate secure payments inside their devices.

To show off the technology, which works with any credit card, Visa or otherwise, the company has teamed up with Honda to develop an in-car app that helps automate payments. Right now they have two demos, the first of which concerns refueling. It warns the driver when their fuel level is low and directs them to the nearest gas station. Once the car arrives at the pump, the app calculates the expected cost and allows the driver to pay for the fuel without having to leave the vehicle.

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