Metasurface opens world of polarization

Researchers have designed a metasurface that can be continuously tuned from linear to elliptical birefringence, opening up the entire space of polarization control with just one device. This single metasurface can operate as many birefringent materials in parallel, enabling more compact polarization manipulation, which could have far-reaching applications in polarization imaging, quantum optics, and other areas.

from Top Technology News -- ScienceDaily https://ift.tt/2Bo7nxw

Read More

Laying foundation for safer, longer-lasting batteries

Researchers sped-up the motion of lithium ions in solid-state batteries using the paddlewheel effect.

from Top Technology News -- ScienceDaily https://ift.tt/3cver8s

Read More

App determines COVID-19 disease severity using artificial intelligence, biomarkers

A new mobile app can help clinicians determine which patients with the novel coronavirus (COVID-19) are likely to have severe cases. Created by researchers at NYU College of Dentistry, the app uses artificial intelligence (AI) to assess risk factors and key biomarkers from blood tests, producing a COVID-19 'severity score.'

from Top Technology News -- ScienceDaily https://ift.tt/2Xsq7oa

Read More

Synthetic red blood cells mimic natural ones, and have new abilities

Scientists have tried to develop synthetic red blood cells that mimic the favorable properties of natural ones, such as flexibility, oxygen transport and long circulation times. But so far, most artificial red blood cells have had one or a few, but not all, key features of the natural versions. Now, researchers have made synthetic red blood cells that have all of the cells' natural abilities, plus a few new ones.

from Top Technology News -- ScienceDaily https://ift.tt/2U5pbny

Read More

Artificial intelligence can improve how chest images are used in care of COVID-19 patients

Artificial intelligence (AI) should be used to expand the role of chest X-ray imaging -- using computed tomography, or CT -- in diagnosing and assessing coronavirus infection so that it can be more than just a means of screening for signs of COVID-19 in a patient's lungs, say researchers in a new report.

from Top Technology News -- ScienceDaily https://ift.tt/2XSCCsg

Read More

Smart molecules could be key to computers with 100-times bigger memories

Researchers have discovered a single molecule 'switch' that can act like a transistor and offers the potential to store binary information -- such as the 1s and 0s used in classical computing.

from Top Technology News -- ScienceDaily https://ift.tt/2zYDl39

Read More

Twitter CEO Jack Dorsey gives $3 million to Colin Kaepernick's organization

The Twitter founder gives to the organization as he faces criticism from conservatives.

from Tech https://ift.tt/3dADd8A

Read More

Google Removes Viral Indian App That Deleted Chinese Ones: 10 Points

Google has pulled an app from its Google Play store that helped users identify and remove apps of Chinese origin. The Mountain View, California-based company told Gadgets 360 that the “Remove China Apps” application violated Google Play policy.

from Gadgets 360 https://ift.tt/2Xrtn34

Read More

Facebook, Saregama Sign Global Deal to Add Its Music to Stories, Posts, and Profiles

Facebook and Saregama announced a global licensing deal Wednesday that brings the latter’s collection of over 100,000 songs to your posts and stories on Facebook and Instagram. Saregama’s catalogue features the likes of Lata Mangeshkar, Kishore Kumar, Rafi, Asha Bhosle, Gulzar, Jagjit Singh, and RD Burman.

from Gadgets 360 https://ift.tt/2zVyoIp

Read More

Why the universe I invented is right – but still not the final answer

Nobel prizewinner Jim Peebles introduced dark matter and dark energy into our standard model of the cosmos – but that is only an approximation to a deeper truth, he says.

from New Scientist - Space https://ift.tt/3cwgWr4

Read More

Tech advocacy group's lawsuit says Donald Trump's order on social media is unconstitutional

The lawsuit argues that Trump's executive order will "chill future online speech by other speakers" and reduce the ability of Americans to speak freely online.

from Gadgets Now https://ift.tt/3gIoNW1

Read More

After Facebook staff walkout, Mark Zuckerberg defends no action on Trump posts

Zuckerberg told employees on a video chat that Facebook had conducted a thorough review and was right to leave the posts unchallenged

from Gadgets Now https://ift.tt/3gOyqSX

Read More

TikTok has its Arab Spring moment as teen activism overtakes dance moves

from Gadgets Now https://ift.tt/2Mo4mzB

Read More

Twitter names ex-Google CFO Pichette as chairman

Investors have been increasingly pushing for outsiders to preside over boards. Pichette is expected to bring greater scrutiny of management and a stronger focus on financial matters to the company

from Gadgets Now https://ift.tt/2XZnTMl

Read More

Zoom nearly doubles revenue forecast on remote-work boost, but costs rising

Zoom Video Communications Inc nearly doubled its expectations for annual sales, driven by a surge in users as more people work from home and connect with friends online during coronavirus lockdown.

from Gadgets Now https://ift.tt/2Mo4mj5

Read More

After Facebook staff walkout, Mark Zuckerberg defends no action on Trump posts

Zuckerberg told employees on a video chat that Facebook had conducted a thorough review and was right to leave the posts unchallenged

from Gadgets Now https://ift.tt/3gOyqSX

Read More