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This new method will change the way you charge your smartphones

"This new innovative method will make it possible for electrical power to become as ubiquitous as WiFi"

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A Smartphone (representational Image), Pixabay

New York, Feb 18, 2017: If you thought wireless charging in smartphones was a new thing, you are mistaken as researchers have found a new method to power devices without connecting them to cords.

The new method developed by Disney Research, published in the journal PLOS ONE, for wirelessly transmitting power throughout a room enables users to charge electronic devices as seamlessly as they now connect to WiFi hotspots.

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The researchers demonstrated their method, called quasistatic cavity resonance (QSCR), inside a specially built 16-by-16-foot room at their lab.

They safely generated near-field standing magnetic waves that filled the interior of the room, making it possible to power several cell phones, fans and lights simultaneously.

“This new innovative method will make it possible for electrical power to become as ubiquitous as WiFi,” said Alanson Sample, associate lab director and principal research scientist at Disney Research.

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“This in turn, could enable new applications for robots and other small mobile devices by eliminating the need to replace batteries and wires for charging,” added Sample.

According to Sample, wireless power transmission is a long-standing technological dream.

“In this work, we’ve demonstrated room-scale wireless power, but there’s no reason we couldn’t scale this down to the size of a toy chest or up to the size of a warehouse,” Sample noted.

The QSCR method involves inducing electrical currents in the metalized walls, floors, and ceiling of a room, which in turn generate uniform magnetic fields that permeate the room’s interior.

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This enables power to be transmitted efficiently to receiving coils that operate at the same resonant frequency as the magnetic fields.

The induced currents in the structure are channeled through discrete capacitors, which isolate potentially harmful electrical fields.

“Our simulations show we can transmit 1.9 kilowatts of power while meeting federal safety guidelines,” Chabalko said, adding that this was equivalent to simultaneously charging 320 smartphones.

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Astronomers discovered Sun-like star that devoured its own planets

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Astronomers discovered Sun-like star that devoured its own planets

New York, Oct 13: Astronomers have discovered that a Sun-like star lurking around 350 light-years away consumed the rocky equivalent of 15 Earths.

Dubbed Kronos after the child-eating Titan of Greek mythology, the star is the clearest and most dramatic case yet of a Sun-like star consuming its own planets, said Semyeong Oh, astrophysicist at Princeton University in New Jersey and lead author of the study.

“Even if our Sun ate the entire inner solar system, it wouldn’t come close to the anomaly we see in this star,” study co-author David Hogg from the Flatiron Institute in New York added.

The research did not begin as a hunt for a planet-eater.

Oh was analysing a catalog of new star data collected by the European Space Agency’s Gaia spacecraft for pairs of stars with similar speeds and trajectories.

Such duos are typically twin stars that formed close together from the same ingredients.

The analysis ultimately led to the identification of Kronos and its lesser known brother Krios.

Their official designations are HD 240430 and HD 240429, and they are both about 350 light years from Earth.

The keys to the discovery were first confirming that the widely separated pair are in fact a binary pair, and secondly observing Kronos’ strikingly unusual chemical abundance pattern, Oh explained in a statement released by the Princeton University.

Other co-moving star pairs have had different chemistries, Oh explained, but none as dramatic as Kronos and Krios.

Most stars that are as metal-rich as Kronos “have all the other elements enhanced at a similar level,” she said, “whereas Kronos has volatile elements suppressed, which makes it really weird in the general context of stellar abundance patterns.”

In other words, Kronos had an unusually high level of rock-forming minerals, including magnesium, aluminium, silicon, iron, chromium and yttrium, without an equally high level of volatile compounds — those that are most often found in gas form, like oxygen, carbon, nitrogen and potassium, the study said. (IANS)

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Researchers Claim The Existence Of Planet Nine

Researchers from an American University have laid evidences to prove the presence of Planet Nine

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Kuiper Belt indicates the presence of Planet Nine
  • The science communities since a long time have been debating upon the existence of Planet Nine. 
  • Space highlights different shreds of evidence based on which scientists are stating the claim.

What Is Planet Nine?

Planet Nine is a hypothetical planet present in the far outer Solar System, whose mass is estimated to be 10 times more than the mass of Earth. The planet is said to be 20 times farther than the sun than Neptune is.

What Do Researchers Have To Say?

Dr Konstantin Batygin, a planetary astrophysicist at the California Institute of Technology, said that there were five different lines of observational evidence which pointed to the existence of Planet Nine. He stated that if this theory does not sound believable, then people would have to come up with the answers of the five pieces of evidence which could lead to further confusion.

Also Read: Five Students from Telangana Selected for the NASA Human Exploration Rover Challenge

Batygin in 2016 published a study examining the six known objects in the Kuiper Belt, a  circumstellar disc in the Solar System beyond the planets that extends from the orbit of Neptune towards interstellar space.

The study examines all the objects have elliptical orbits pointing in the same direction and are tilted the same way. These serve as evidence to the planet’s existence.

It is being said that the objects are tilted 30 degrees downward compared to the plane where the eight official planets circle the sun. Researchers also made use of computer simulations of the solar system including the Planet Nine and to demonstrate that there should be more objects tilted a whopping 90 degrees to solar plane. It was revealed that five such objects, which fit these parameters were already known.

The study led to the birth of two more ideas. Researchers said that this planet could have tilted the planets of the solar system during the last 4.5 billion years.

Planet Nine’s existence could also tell the reason as to why Kuiper Belt objects orbit in the opposite direction as compared to other things in the solar system.

-Prepared by Megha Acharya of NewsGram.

(the story was originally published in PTI)

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Nearly Half of the Teenagers in the US and Japan are ‘Addicted’ to Smartphones, Says New Report

Nowadays, one of the worst things that can happen to us is, like, 'Oh, I left my phone at home,'

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Brian Vega, left, Peyton Ruiz, second from left, and Max Marrero, right, check their smartphones at Bayfront Park in downtown Miami, Florida. (AP Photo/Alan Diaz) (VOA)

California, October 12, 2017 : About half of teenagers in the United States and Japan say they are addicted to their smartphones.

University of Southern California (USC) researchers asked 1,200 Japanese about their use of electronic devices. The researchers are with the Walter Annenberg School for Communications and Journalism. Their findings were compared with an earlier study on digital media use among families in North America.

“Advances in digital media and mobile devices are changing the way we engage not only with the world around us, but also with the people who are the closest to us,” said Willow Bay, head of the Annenberg School.

The USC report finds that 50 percent of American teenagers and 45 percent of Japanese teens feel addicted to their smartphones.

SMARTPHONES
Willow Bay, dean of the USC Annenberg School for Communications and Journalism, Sept. 28, 2016, in Beverly Hills, California. VOA

“This is a really big deal,” said James Steyer, founder of Common Sense Media, an organization that helped with the study. “Just think about it, 10 years ago we didn’t even have smartphones.”

Sixty-one percent of Japanese parents believe their children are addicted to the devices. That compares to 59 percent of the American parents who were asked.

Also, more than 1-in-3 Japanese parents feel they have grown dependent on electronic devices, compared to about 1-in-4 American parents.

Leaving your phone at home is ‘one of the worst things’

“Nowadays, one of the worst things that can happen to us is, like, ‘Oh, I left my phone at home,’” said Alissa Caldwell, a student at the American School in Tokyo. She spoke at the USC Global Conference 2017, which was held in Tokyo.

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People look at their smartphones in front of an electronic stock board of a securities firm in Tokyo. VOA

A majority of Japanese and American parents said their teenagers used mobile devices too much. But only 17 percent of Japanese teens agreed with that assessment. In the United States, 52 percent of teens said they are spending too much time on mobile devices.

Many respond immediately to messages

About 7-in-10 American teens said they felt a need to react quickly to mobile messages, compared to about half of Japanese teens.

In Japan, 38 percent of parents and 48 percent of teens look at and use their devices at least once an hour. In the United States, 69 percent of parents and 78 percent of teens say they use their devices every hour.

Naturally, that hourly usage stops when people are sleeping, the researchers said.

SMARTPHONES
Young people using smartphones. (Photo courtesy Kuvituskuvat via Flickr) (VOA)

The devices are a greater cause of conflict among teens and parents in the United States than in Japan. One-in-3 U.S. families reported having an argument every day about smarthphone use. Only about 1-in-6 Japanese families say they fight every day over mobile devices.

Care more about devices than your children?

But 20 percent of Japanese teens said they sometimes feel that their parents think their mobile device is more important than they are. The percentage of U.S. teens saying they feel this way is 6 percent.

In the United States, 15 percent of parents say their teens’ use of mobile devices worsens the family’s personal relationships. Eleven percent of teens feel their parents’ use of smarthphones is not good for their relationship.

The USC research was based on an April 2017 study of 600 Japanese parents and 600 Japanese teenagers. Opinions from American parents and teenagers were collected in a study done earlier by Common Sense Media.

Bay, the Annenberg School of Communications dean, said the research raises critical questions about the effect of digital devices on family life.

She said the cultural effects may differ from country to country, but “this is clearly a global issue.” (VOA)