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Energy & Green Tech

Using crumpled graphene balls to make better batteries

Lithium metal-based batteries have the potential to turn the battery industry upside down. With the theoretically ultra-high capacity of lithium metal used by itself, this new type of battery could power everything from personal ...

Energy & Green Tech

Diversity can prevent failures in large power grids

The recent power outages in Texas brought attention to its power grid being separated from the rest of the country. While it is not immediately clear whether integration with other parts of the national grid would have completely ...

Internet

Failures in large networks can be prevented with local focus

We live in an increasingly connected world, a fact underscored by the swift spread of the coronavirus around the globe. Underlying this connectivity are complex networks—global air transportation, the internet, power grids, ...

Consumer & Gadgets

Smart necklace will know you binged on Chunky Monkey

There you are wrist deep into a quart of Ben & Jerry's Chunky Monkey, digging ever deeper. You can't deny it. Your necklace is recording the ice-cream binge, which it will later dispatch to a coach or dietician.

Energy & Green Tech

The case for onboard carbon dioxide capture on long-range vehicles

When people talk about how to eliminate vehicles' carbon dioxide (CO2) emission, often the conversation often focuses on electrifying cars, trucks and buses. Yet cargo and tanker ships, which are responsible for 3% of all ...

Engineering

Mystery solved: The case of the slipping finger

Haptics researchers have long known that applying ultrasonic vibrations to a flat, featureless glass plate makes it feel slippery. But they have also long debated why this occurs.

Engineering

New tool to guide sustainable building design and construction

The green building materials market is expected to skyrocket in the next five years, catalyzed by an urgent need to build structures that can respond to more intense weather patterns and offer lower carbon footprints. But ...

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