Measuring magnetic fields with accuracy is important, whether it’s for geological exploration or medical imaging. Now, a team from MIT has developed a new laser-based magnetic field detector that’s 1, 000 times more efficient than previous examples. Read more…
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A Magnetic Field Detector 1,000 Times More Efficient Than Those Before It
Exactly half a century ago this week, a rocket shot off from the California coast. It carried the U.S.’s first and only (known) space nuclear reactor, SNAP-10A, which has been circling the Earth ever since and will continue to circle for another 3, 000 years. Read more…
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For 50 Years Now, the U.S. Has Had a Nuclear Reactor Orbiting in Space
Lucas123 writes: While the rest of the nation’s solar power generation hovers around 1%, California clocked in with a record 5% of power coming from utility-grade (1MW or more) solar power sources, according to a report from Mercom Capital Group and the Energy Information Administration. That’s three times the next closest state, Arizona. At the same time, 22 states have yet to deploy even one utility-grade solar power plant, according to the Solar Energy Industry Association. Meanwhile, the rest of the world saw a 14% uptick in solar power installations in 2014 for a total of 54.5GW of capacity, and that figure is expected to grow even faster in 2015. While China still leads the world in new solar capacity, Japan and the U.S. come in as a close second and third, respectively. In the U.S. distributed solar and utility-grade solar installations are soaring as the solar investment tax credit (ITC) is set to expire next year. The U.S. is expected to deploy 8.5GW of new solar capacity in 2015, according to Mercom Capital Group. Read more of this story at Slashdot.
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California Has Become the First State To Get Over 5% of Its Power From Solar
An anonymous reader writes: Modern game consoles have a “standby” mode, which you can use if you want the console to instantly turn on while not drawing full power the whole time it’s idle. But manufacturers are vague about how much power it takes to keep the consoles in this standby state. After a recent press release claiming $250 million worth of electricity was used to power Xbox Ones in standby mode in the past year, Ars Technica decided to run some tests to figure out exactly how much power is being drawn. Their conclusions: the PS4 draws about 10 Watts, $10-11 in extra electricity charges annually. The Xbox One draws 12.9W, costing users $13-$14 in extra electricity charges annually. The Wii U draws 13.3W, costing users $14-$15 in extra electricity charges annually. These aren’t trivial amounts, but they’re a lot less than simply leaving the console running and shutting off the TV when you aren’t using it: “Leaving your PS4 sitting on the menu like this all year would waste over $142 in electricity costs.” Read more of this story at Slashdot.
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Measuring How Much "Standby Mode" Electricity For Game Consoles Will Cost You
An anonymous reader writes with news about an impressive renewable energy accomplishment in Costa Rica. Costa Rica has achieved a clean energy milestone by using 100 per cent renewable energy for a record 75 days in a row. The feat was achieved thanks to heavy rainfall, which powered four hydroelectric plants in the first three months of the year, the state-run Costa Rican Electricity Institute said. No fossil fuels have been burnt to generate electricity since December 2014, in the state which is renowned for its clean energy policies.” Read more of this story at Slashdot.
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Costa Rica Goes 75 Days Powering Itself Using Only Renewable Energy
Human-made satellites have long been able to harness the sun’s energy as it washes over them outside the protection of our atmosphere. But what if we could beam all that solar power down to Earth? The science fictional idea may be a reality sooner than you think. Read more…
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Japanese Scientists Just Beamed Energy Through the Air
SolarCity, the solar power startup whose chairman is the seemingly ever-present Elon Musk, has announced a new $750 million fund created to help fund residential solar projects, including defraying the upfront costs of solar panel installation at homes in 14 different states across the U.S. and in D.C. The new fund includes a contribution of $300 million, or just under half the total value, … Read More
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SolarCity Creates $750M Fund For Residential Solar With $300M From Google
An anonymous reader writes: A new metal-making process currently in testing at oil fields uses nano-scale plating to make metals like steel as much as ten times stronger than they would be without it. “[The process] uses an advanced form of electroplating, a process already used to make the chrome plating you might see on the engine and exhaust pipes of a motorcycle. Electroplating involves immersing a metal part in a chemical bath containing various metal ions, and then applying an electrical current to cause those ions to form a metal coating. The company uses a bath that contains more than one kind of metal ion and controls how ions are deposited by varying the electrical current. By changing the current at precise moments, it can create a layered structure, with each layer being several nanometers thick and of different composition. The final coating can be up to a centimeter thick and can greatly change the properties of the original material.” Read more of this story at Slashdot.
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Nanotech Makes Steel 10x Stronger
It might seem like LED bulbs are only for early-adopters hoping to cut down their monthly Con Ed power bill, but come Sunday, the energy-efficient lighting alternative will take center stage at one of the greatest spectacles on Earth. This will actually be the first Super Bowl to be entirely lit by LED bulbs . Read more…
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The First Super Bowl Played Under LEDs Will Use 75 Percent Less Power
sarahnaomi writes There sits, in the Clarendon Laboratory at Oxford University, a bell that has been ringing, nonstop, for at least 175 years. It’s powered by a single battery that was installed in 1840. Researchers would love to know what the battery is made of, but they are afraid that opening the bell would ruin an experiment to see how long it will last. The bell’s clapper oscillates back and forth constantly and quickly, meaning the Oxford Electric Bell, as it’s called, has rung roughly 10 billion times, according to the university. It’s made of what’s called a “dry pile, ” which is one of the first electric batteries. Dry piles were invented by a guy named Giuseppe Zamboni (no relation to the ice resurfacing company) in the early 1800s. They use alternating discs of silver, zinc, sulfur, and other materials to generate low currents of electricity. Read more of this story at Slashdot.
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At Oxford, a Battery That’s Lasted 175 Years — So Far