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 ...

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.

Energy & Green Tech

Inadequate charging networks could thwart EV adoption goals

Failing to properly plan a resilient network of charging stations could be an Achilles' heel that undermines efforts to encourage the large-scale adoption of electric vehicles, researchers behind a new study have said. Their ...

Engineering

Tool for predicting pedestrian flow expands its reach

When urban development takes place, a traffic impact assessment is often needed before a project is approved: What will happen to auto traffic if a new apartment building or business complex is constructed, or if a road is ...

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