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A stretchable electronic device whose design is inspired by the cut-paper art called kirigami. Doug Levere/University at Buffalo

Ancient arts are inspiring modern electronics

What’s the connection between kids making paper snowflakes and wearable devices that stretch and bend with your body? Engineers who find design inspirations from many sources.
What’s this digital token good for, anyway? knipsdesign/Shutterstock.com

What is a blockchain token?

Tokens, the next stage in the development of blockchain technologies, can help expand blockchains’ uses beyond simply exchanging money.
Birds don’t fly across wide Amazonian rivers like the Rio Negro. Marcos Amend www.marcosamend.com (for use with this article only)

Bird DNA helps explain Amazonian rivers’ role in evolution

Rivers are natural boundaries for evolving populations. But scientists don’t agree whether they create new species or just help maintain them. Research using birds’ molecular clocks provides some answers.
These rats are in special cages for urine collection. Every year, millions of animals are used for testing chemicals that are used in industrial products. By unoL/shutterstock.com

AI more accurate than animal testing for spotting toxic chemicals

Testing new industrial chemicals is essential for public health and the environment. But animal testing is costly, and too many chemicals are left untested. A new AI tool may solve the problem.
Edwin E. ‘Buzz’ Aldrin Jr. poses for a photograph beside the U.S. flag deployed on the moon during the Apollo 11 mission on July 20, 1969. Neil A. Armstrong/NASA/AP Photo

Who owns the moon? A space lawyer answers

Fifty years ago, on July 20, 1969, American astronauts planted a US flag on the moon. A space lawyer explains the implications, who owns the moon, and what it means for lunar mining.
What can researchers learn from how people use emoji during tragedies? The Conversation

Understanding the emoji of solidarity

New research discovered how people use emoji to express their concern and support during tragedies and disasters.