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Tattoos have often been presented in popular media as either marks of the dangerous and deviant or trendy youth fads. But while tattoo styles come and go, and their meaning has differed greatly across cultures, the practice is as old as civilization itself. Decorative skin markings have been discovered in human remains all over the …
You’ve probably heard that carbon dioxide is warming the Earth, but how does it work? Is it like the glass of a greenhouse or like an insulating blanket? Well, not entirely. The answer involves a bit of quantum mechanics, but don’t worry, we’ll start with a rainbow. If you look closely at sunlight separated through …
How quantum mechanics explains global warming – Lieven Scheire 더 보기 »
Did you know that every time musicians pick up their instruments, there are fireworks going off all over their brain? On the outside, they may look calm and focused, reading the music and making the precise and practiced movements required. But inside their brains, there’s a party going on. How do we know this? Well, …
How playing an instrument benefits your brain – Anita Collins 더 보기 »
There are over one billion cars in the world today, getting people where they need to go, but cars aren’t just a mode of transportation, they’re also a chemistry lesson waiting to be taught. The process of starting your car begins in the engine cylinders, where a spritz of gasoline from the fuel injector and …
Under the hood: The chemistry of cars – Cynthia Chubbuck 더 보기 »
Aristotle famously said, “Nature fears of empty space” when he claimed that a true vacuum, a space devoid of matter, could not exist because the surrounding matter would immediately fill it. Fortunately, he turned out to be wrong. A vacuum is a key component of the barometer, an instrument for measuring air pressure. And because …
The history of the barometer (and how it works) – Asaf Bar-Yosef 더 보기 »
The dead coming back to life sounds scary. But for scientists, it can be a wonderful opportunity. Of course, we’re not talking about zombies. Rather, this particular opportunity came in the unlikely form of large, slow-moving fish called the coelacanth. This oddity dates back 360 million years, and was believed to have died out during …
The coelacanth: A living fossil of a fish – Erin Eastwood 더 보기 »
How and when did our universe begin? How did it get to look like this? How will it end? Humans have been discussing these questions for as long as they’ve been around without ever reaching much agreement. Today, cosmologists are working hard to find the answers. But how can anyone hope to find concrete answers …
What light can teach us about the universe – Pete Edwards 더 보기 »
Meet the nurdles. They may be tiny, look harmless, and sound like a bunch of cartoon characters, but don’t be fooled. These little guys are plotting ocean domination. Nurdles are some of the planet’s most pervasive pollutants, found in lakes, rivers, and oceans across the globe. The tiny factory-made pellets form the raw material for …
The nurdles’ quest for ocean domination – Kim Preshoff 더 보기 »
Some people can’t see the forest for the trees, but before Stephen Sillett, no one could see or even imagine the forest in the trees. Stephen was an explorer of new worlds from the start. He spent his boyhood in Harrisburg, Pennsylvania reading Tolkien and playing Dungeons and Dragons with his brother Scott. But when …
What’s hidden among the tallest trees on Earth? – Wendell Oshiro 더 보기 »
What if I told you there were trillions of tiny bacteria all around you? It’s true. Microorganisms called bacteria were some of the first life forms to appear on Earth. Though they consist of only a single cell, their total biomass is greater than that of all plants and animals combined. And they live virtually …
