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AI Helps Find Source Of Radio Bursts 3 Billion Light Years Away From Earth

The researchers developed the new, powerful machine-learning algorithm and reanalysed the 2017 data, finding an additional 72 bursts not detected originally.

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Space, radio
'AI helps track down mysterious cosmic signals', Pixabay
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Scientists say they have used artificial intelligence (AI) to discover 72 new fast radio bursts from a mysterious source about three billion light years away from Earth.

The initiative may advance the search to find signs of intelligent life in the universe, said researchers from the University of California, Berkeley in the US.

Fast radio bursts are bright pulses of radio emission mere milliseconds in duration, thought to originate from distant galaxies.

However, the source of these emissions is still unclear, according to the research published in The Astrophysical Journal.

Theories range from highly magnetised neutron stars blasted by gas streams from a nearby supermassive black hole, to suggestions that the burst properties are consistent with signatures of technology developed by an advanced civilization.

 

earth, radio
While most fast radio bursts are one-offs, the source here, FRB 121102, is unique in emitting repeated bursts. Wikimedia Commons

 

“This work is exciting not just because it helps us understand the dynamic behaviour of fast radio bursts in more detail, but also because of the promise it shows for using machine learning to detect signals missed by classical algorithms,” said Andrew Siemion from the University of California – Berkele.

 

Researchers are also applying the successful machine-learning algorithm to find new kinds of signals that could be coming from extraterrestrial civilisations.

While most fast radio bursts are one-offs, the source here, FRB 121102, is unique in emitting repeated bursts.

This behaviour has drawn the attention of many astronomers hoping to pin down the cause and the extreme physics involved in fast radio bursts.

The AI algorithms dredged up the radio signals from data were recorded over a five-hour period in 2017, by the Green Bank Telescope in West Virginia in the US.

Radio
The researchers developed the new, powerful machine-learning algorithm and reanalysed the 2017 data, finding an additional 72 bursts not detected originally. (IANS)

An earlier analysis of the 400 terabytes of data employed standard computer algorithms to identify 21 bursts during that period.

“All were seen within one hour, suggesting that the source alternates between periods of quiescence and frenzied activity,” said Berkeley postdoctoral researcher Vishal Gajjar.

Also Read: HCL Launches AI Based ‘HCL Turbo’

The researchers developed the new, powerful machine-learning algorithm and reanalysed the 2017 data, finding an additional 72 bursts not detected originally.

This brings the total number of detected bursts from FRB 121102 to around 300 since it was discovered in 2012, researchers said. (IANS)

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Apple Expands Its Campus to Austin, East and West U.S.

The infusion of thousands of new and highly paid residents can ripple through an economy

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Apple, Campus, China
A customer is entering the Apple store in Fairfax, Virginia. VOA

Apple will build a $1 billion campus in Austin, Texas, break ground on smaller locations in Seattle, San Diego and Culver City, California, and over the next three years expand in Pittsburgh, New York and Colorado.

The tech giant said Thursday that the new campus in Austin, less than a mile from existing Apple facilities, will open with 5,000 positions in engineering, research and development, operations, finance, sales, and customer support. The site, according to Apple, will have the capacity to eventually accommodate 15,000 employees.

The three other new locations will have more than 1,000 employees each.

Early this year, Apple said that it would make more than $30 billion in capital expenditures in the U.S. over the next five years. That, the company said in January, would create more than 20,000 new jobs at existing and new campuses that Apple planned to build.

Apple, Campus, Tim cook
Apple CEO Tim Cook speaks during an event to announce new products, Oct. 30, 2018, in the Brooklyn borough of New York. VOA 

Where U.S. companies open new facilities or plants has always had the potential for public and political backlash.

That potential has intensified under the Trump administration, which has pushed companies to keep more of their operations inside the country’s borders.

While CEO Tim Cook has steered mostly clear President Donald Trump’s ire, Apple did receive some push back three months ago from the White House.

Apple sent a letter to the U.S. trade representative warning that the burgeoning trade war with China and rising tariffs could force higher prices for U.S. consumers.

Trump in a tweet told Apple to start making its products in the U.S., and not China.

Apple uses a lot of facilities overseas to produce components and its products, including China.

Apple, Tim Cook, Campus
A guest looks at the Touch Bar on a MacBook computer shown in a demo room following the announcement of new products at Apple headquarters, in Cupertino, California. VOA

Top tech executives from Google, Microsoft, IBM, Oracle and Qualcomm gathered at the White House earlier this month to discuss strained ties between the administration and the industry, and trade tensions with China. Cook was not among them, nor was Amazon’s Jeff Bezos.

There are already 6,000 Apple employees in Austin, its largest operation outside of company headquarters in Cupertino, California, where 37,000 people are employed.

“Apple has been a vital part of the Austin community for a quarter century, and we are thrilled that they are deepening their investment in our people and the city we love,” said Austin Mayor Steve Adler in a prepared statement Thursday.

Apple said nearly a year ago that it would begin canvassing the U.S. for another campus.

Cities offered incentives to lure the company, but Cook avoided a high-profile competition that pitted them against one another as Amazon did over the last year and a half.

Apple, Tim Cook, Campus
iPhone 8 was also launched with a special edition red colour, Pixabay

Amazon, too, expands

Amazon announced in November after a 14-month search it had selected Long Island City, Queens, and Arlington, Virginia, as the joint winners. Each site will employ around 25,000 people.

Cities are eager to bring in more tech employers because companies like Apple and Amazon ladle out six-figure salaries to engineers and other skilled workers.

Also Read: China Bans iPhone Sales Due to Patent Dispute

The infusion of thousands of new and highly paid residents can ripple through an economy, with those employees filling restaurants, theaters, buying property and paying taxes.

Annual pay will vary at the new locations, but Apple workers in Cupertino have an average annual salary of about $125,000, according to a report the company submitted to the city. (VOA)