Tae-ho Kim

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Scientists Make Photons Act Like Real-Life Light Saber

Photons are particles without mass; until now, our understanding has been that they do not interact with each other at all. That's why, when you shine two lights at each other, they don't bounce off and throw light all over the place; the photos simply pass right through. But new research from …

Cage Match

How science is transforming the sport of MMA fighting<p>Greg Jackson, the single most successful trainer in the multi-billion-dollar sport of professional mixed martial arts fighting, works out of a musty old gym in Albuquerque, New Mexico, not far from the base of the Sandia Mountains. On a recent …

The Short Happy Life of a Serengeti Lion

Death is always near, and teamwork is essential on the Serengeti—even for a magnificent, dark-maned male known as C-Boy.<p>They say that cats have nine lives, but they don’t say that about the Serengeti lion. Life is hard and precarious on this unforgiving landscape, and dead is dead. For the greatest …

Wildlife

The 20 big questions in science

From the nature of the universe (that's if there is only one) to the purpose of dreams, there are lots of things we still don't know – but we might do soon. A new book seeks some answers<p>1 What is the universe made of?<p>Astronomers face an embarrassing conundrum: they don't know what 95% of the …

Make Your Own Remote-Control Spy Blimp

Float on!<p>I'm a materials-science engineer at an agency that allocates funding to research projects. It's theoretical work, so in my spare time I like to do practical, hands-on things. I've been building R/C models for 33 years and have always preferred uncommon vehicles--amphibious cars, …