Engineering

Squid skin–inspired material is a game changer

Inside a lab in the Calit2 building, Aleksandra Strzelecka opens a drawer, pulls out a small square sheet and hands it to a visitor. The brownish, rubbery material stretches to more than double its original size.

Engineering

Transistor-integrated cooling for a more powerful chip

Managing the heat generated in electronics is a huge problem, especially with the constant push to reduce the size and pack as many transistors as possible in the same chip. The whole problem is how to manage such high heat ...

Business

Hackers steal $97 mn from Japanese crypto exchange

Japanese cryptocurrency exchange Liquid was scrambling Friday to recover stolen assets worth nearly $100 million, in the second such major heist by hackers in recent days.

Business

Bitcoin as environmentally costly as beef production

Taken as a share of the market price, the environmental costs of mining the digital cryptocurrency Bitcoin are more comparable to the climate damages of producing beef than gold mining costs, according to analysis published ...

Electronics & Semiconductors

Just add water to activate a disposable paper battery

A water-activated disposable paper battery is presented in a proof-of-principle study in Scientific Reports. The authors suggest that it could be used to power a wide range of low-power, single-use disposable electronics—such ...

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