Lifeboat Foundation

The Carnegie scientists, Anna Possner and Ken Caldeira, suspected that drag like this might be far lower over water than over land, particularly in mid-latitude oceans in both the Northern and Southern hemispheres. Why might that be? As Earth tilts away from the sun each autumn, jet stream-like rivers of air form high in the atmosphere. Over the open ocean, storms pull these strong winds down near the planet’s surface, replenishing the wind energy captured by turbines.

The effect might sound small, but it adds up. The scientists calculate that a wind farm in the middle of the North Atlantic would generate at least twice as much energy — and perhaps three times as much — as an identical wind farm in Kansas, itself one of the windiest states in the U.S. A wind farm roughly twice the size of Alaska could generate 18 million megawatts of electricity. That’s enough to meet the entire global demand today.

There are big practical challenges to building such a farm, including coping with extreme mid-ocean weather and transmitting the power back to shore. And by harvesting so much wind in the North Atlantic, a giant wind farm would reduce the output of onshore wind turbines in the U.K. and Western Europe — and reduce temperatures in the Arctic by more than 20 degrees. This might sound attractive at a time when polar ice is melting, but scientists worry about the unforeseen consequences of such geoengineering.

Continue reading “A single floating wind farm could power the entire planet” »

An international, interdisciplinary research team of scientists has come up with a machine-learning method that predicts molecular behavior, a breakthrough that can aid in the development of pharmaceuticals and the design of new molecules that can be used to enhance the performance of emerging battery technologies, solar cells, and digital displays.

The work appears in the journal Nature Communications.

“By identifying patterns in molecular behavior, the learning algorithm or ‘machine’ we created builds a knowledge base about atomic interactions within a molecule and then draws on that information to predict new phenomena,” explains New York University’s Mark Tuckerman, a professor of chemistry and mathematics and one of the paper’s primary authors.

Continue reading “Scientists develop machine-learning method to predict the behavior of molecules” »

Building a house by hand can be both time-consuming and expensive. Numerous homebuilders have chosen to automate part of the construction (i.e., by printing the home’s parts) instead.

A new Ukrainian homebuilding startup called PassivDom uses a 3D printing robot that can print parts for tiny houses. The machine can print the walls, roof, and floor of PassivDom’s 380-square-foot model in about eight hours. The windows, doors, plumbing, and electrical systems are then added by a human worker.

When complete, the homes are autonomous and mobile, meaning they don’t need to connect to external electrical and plumbing systems. Solar energy is stored in a battery connected to the houses, and water is collected and filtered from humidity in the air (or you can pour water into the system yourself). The houses also feature an independent sewage system.

Continue reading “A Robot Can Print This $32,000 House in as Little as 8 Hours” »

Google & tesla send puerto rico hi-tech aid

Virgin Islands with everything from solar power grids to Wi-Fi balloons.

And charge electric cars.

The future of food?

Elon Musk and Puerto Rico’s governor are in talks to fix the territory’s energy crisis. It could stand as solar-power exemplar to the world.

This substance is a complex natural polymer called lignin, and it is the second largest renewable carbon source on the planet after cellulose.

This natural abundance has drawn high interest from the research community to chemically convert lignin into biofuels. And if plant life really does hold the building blocks for renewable fuels, it would seem that we are literally surrounded by potential energy sources everywhere green grows.

But untangling the complex chains of these polymers into components, which can be useful for liquid fuel and other applications ranging from pharmaceuticals to plastics, has presented an ongoing challenge to science and industry.

This Northern Hemisphere summer, researchers spent two months collecting samples from a submerged landmass known as Zealandia.

As a result, we could gain new insight into everything from ancient life forms to climate change.

Tens of millions of years ago, a landmass that’s being referred to as Zealandia was largely submerged beneath the Pacific Ocean. This summer, a team of scientists set out on an underwater expedition using an advanced research vessel, and the results might yield brand-new insight into Earth’s prehistory.

Continue reading “Scientists Have Drilled Into Earth’s Hidden 8th Continent” »