Browsing: Senses

Probably the worst thing to happen to you, if you’re an animal playing the game of life, is to be eaten by some bigger beast. If you’ve already managed to successfully reproduce by then, as far as evolution is concerned, maybe it’s OK for you to shuffle off that mortal coil. Still, I imagine it’s […]

Dad was back. He played a little with the children, rubbed a few heads with his own, clawed at a wooden post, and then, standing erect with tail straight up, he backed towards a tree, sprayed, and left. The kids scampered over. They stood on their hind legs and carefully examined the spray—the family smell. […]

We humans take a lot for granted. Pizza delivery, email, smartphones, dishwashers. All of this occurs in the background, making our lives simpler. None of it requires any explicit effort. Our minds also do a lot of subconscious work that we take for granted. Have you ever seriously thought about how you know that the […]

There is more to the world than meets the human eye, a fact that hit home for the 18th-century astronomer Sir Frederick William Herschel when he discovered infrared light—a wavelength of light that lies just outside the visible portion of the electromagnetic spectrum. We can feel its heat, but we can’t see the light—not without […]

One of the last things you’d expect to see at a physics conference is a physicist on stage, in a dapper hat, pounding out a few riffs of the blues on a keyboard. But that’s exactly what University of Illinois professor J. Murray Gibson did at the recent March meeting of the American Physical Society […]

Last week, we asked you to pick out human eyes from animal eyes that look similar. It was probably harder than you expected. This week’s eyeball challenge, again courtesy of some great photographs by Suren Manvelyan, might be even harder. Can you tell which very inhuman-looking eyes (bigger images below) belong to which animals?  Here’s […]

People place incredible importance on their eyes. They’re arguably our default tool for perceiving the world, and one of the primary ways we remember and describe one another. Your eye color is on your birth certificate, driver’s license, and online dating profile. Those who make eye contact are considered more competent, friendlier, and more professional. Online […]

We’re used to the idea that some among us are colorblind, perceiving the world differently because of a quirk in their genetics. And it’s well-known that teenagers and young adults can hear high-pitched sounds that their elders cannot, an ability that’s been exploited by manufacturers of The Mosquito, an anti-loitering device that annoys youth into leaving. […]