Tuesday, October 25, 2022

Engineered Metamaterials Can Trick Light and Sound into Mind-Bending Behavior

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October 25, 2022

Dear Reader,

"Metamaterials" can tweak the way waves like light and sound interact with matter. New advances in this field are bringing cloaking technology, perfect polarization and controllable sound waves closer to practical applications.

Sophie Bushwick, Associate Editor, Technology
@sophiebushwick

Materials Science

Engineered Metamaterials Can Trick Light and Sound into Mind-Bending Behavior

Advanced materials can modify waves, creating optical illusions and useful technologies

By Andrea Alù

Artificial Intelligence

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Materials Science

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Renewable Energy

A Boom in Renewable Energy Has Blunted the Global Rise in Emissions

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Flying robots help researchers identify and protect threatened plants and other species in places that are inaccessible to humans

By Susan Cosier

Plants

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Prevent your jack-o'-lantern from turning into moldy, maggoty mush before Halloween

By Matt Kasson,The Conversation US

Privacy

How Iran Is Using the Protests to Block More Open Internet Access

The Iranian government is taking advantage of Internet shutdowns to push citizens onto a local intranet that is vulnerable to surveillance and censorship

By Sophie Bushwick

Climate Change

New Jersey Invokes Superstorm Sandy Wreckage in New Climate Lawsuit

The Garden State is one of two dozen local governments suing oil and gas companies for allegedly lying to consumers and contributing to global warming

By Lesley Clark,E&E News
FROM THE STORE

QUOTE OF THE DAY

"Federal and local law enforcement in several states say that the caller appears to be located internationally, perhaps in Ethiopia, and is using VoIP technology to systematically call in threats to targeted schools."

Dhruv Mehrotra, Wired

FROM THE ARCHIVE

Moths Have an Acoustic Invisibility Cloak to Stay under Bats' Radar

New research finds they fly around on noise-cancelling wings

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