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Your nose knows what’s on the way. Lucy Chian/Unsplash

Why you can smell rain

A weather expert explains where petrichor – that pleasant, earthy scent that accompanies a storm’s first raindrops – comes from.
A trader works on the floor of the New York Stock Exchange, as U.S. President Donald Trump speaks on the television shortly after the opening bell. REUTERS/Lucas Jackson

The US needs to get over its obsession with GDP

Economists, politicians and the media watch GDP closely. But it isn’t the best way to measure the health of the US economy.
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.
Papa John himself resigned from the company after a report said he used a racial slur. Reuters/Danny Moloshok

What is a ‘poison pill’?

Papa John’s is hoping to use the corporate strategy to prevent founder John Schnatter from taking back control over the pizza chain.
Did anyone check the number of candles on here? KikoStock/Shutterstock.com

How old is my pet in dog years or cat years? A veterinarian explains

Based on his age in ‘dog years,’ could your animal pal legally buy alcohol? Or would he be cashing in on his senior discount? Veterinarians are more interested in life stage than a particular number.

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