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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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Smartphones
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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US Researchers Redefine Conditions that Makes a Planet Habitable

The researchers also found that planets with thin ozone layers, which have otherwise habitable surface temperatures, receive dangerous levels of UV dosages

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Planet
Instruments, such as the Hubble Space Telescope and James Webb Space Telescope, have the capability to detect water vapor and ozone on a Planet. Pixabay

A team of US researchers has redefined the conditions that make a Planet habitable by taking the star’s radiation and the planet’s rotation rate into account – a discovery that will help astronomers narrow down the search around life-sustaining planets.

The research team is the first to combine 3D climate modeling with atmospheric chemistry to explore the habitability of planets around M dwarf stars, which comprise about 70 per cent of the total galactic population.

Among its findings, the Northwestern team, in collaboration with researchers at the University of Colorado Boulder, NASA’s Virtual Planet Laboratory and the Massachusetts Institute of Technology, discovered that only planets orbiting active stars — those that emit a lot of ultraviolet (UV) radiation — lose significant water to vaporization.

Planets around inactive, or quiet, stars are more likely to maintain life-sustaining liquid water.

The researchers also found that planets with thin ozone layers, which have otherwise habitable surface temperatures, receive dangerous levels of UV dosages, making them hazardous for complex surface life.

“It’s only in recent years that we have had the modeling tools and observational technology to address this question,” said Northwestern’s Howard Chen, the study’s first author.

“Still, there are a lot of stars and planets out there, which means there are a lot of targets,” added Daniel Horton, senior author of the study. “Our study can help limit the number of places we have to point our telescopes”.

The research was published in the Astrophysical Journal.

Horton and Chen are looking beyond our solar system to pinpoint the habitable zones within M dwarf stellar systems.

M dwarf planets have emerged as frontrunners in the search for habitable planets.

Planet
A team of US researchers has redefined the conditions that make a Planet habitable by taking the star’s radiation and the planet’s rotation rate into account. Pixabay

They get their name from the small, cool, dim stars around which they orbit, called M dwarfs or “red dwarfs”.

By coupling 3D climate modeling with photochemistry and atmospheric chemistry, Horton and Chen constructed a more complete picture of how a star’s UV radiation interacts with gases, including water vapor and ozone, in the planet’s atmosphere.

Instruments, such as the Hubble Space Telescope and James Webb Space Telescope, have the capability to detect water vapor and ozone on exoplanets. They just need to know where to look.

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“‘Are we alone?’ is one of the biggest unanswered questions,” Chen said. “If we can predict which planets are most likely to host life, then we might get that much closer to answering it within our lifetimes.” (IANS)