Popular Science

In middle school classrooms, the gist of the Ice Age is often explained as, "It got really cold and all the animals became extinct.” Recently, however, scientists have been taking a closer look at where and when human behavior affected the extinction of species, instead of climate change. Recent findings in Tasmania prove that certain ancient species, like the giant kangaroo and marsupial rhino and leopard, were still inhabiting the island when humans first arrived, leading the research team to conclude that the animals' extinction was due to human hunting, not the Ice Age.

The Lions Gate Bridge carries some 70,000 cars almost a mile across the entrance to Vancouver’s harbor every day. In a city polishing itself up for the 2010 Winter Olympics, the bridge is prime postcard fodder.

The existence of a race of sentient alien robots might be not just possible, but inevitable. In fact, we might be living in a "postbiological universe" right now, in which intelligent extraterrestrials somewhere have exchanged organic brains for artificial ones.

The driving factor is a pragmatic desire to improve mental capacity. Alien beings may have already reached a point in their evolution where, having exhausted the potential of their biological brains, they have taken the next logical step and opted for robotic brains equipped with artificial intelligence.

Today you can buy a rubber boot or a cellphone with rubber seals to keep water out. But a new treatment called Ion Mask promises to make any gadget or clothing item waterproof and stainproof without changing its appearance.

Think smoking is bad for you? Try just breathing. Louisiana scientists have discovered a group of previously undetected air pollutants that when inhaled exposes the average person to 300 times more free radicals than that of one cigarette in a day.

Ninety years ago the Spanish flu swept across the globe, killing between 50 and 100 million people in only a few months. Since then, the specter of another flu pandemic dealing death and woe around the world has periodically terrified the medical and popular communities. But scientists searching for ways to prevent a similar outbreak in the form of the H5N1 bird flu have found a cure for the deadliest flu in the most unlikely place: nonagenarian immune systems.

Bored with knitting? Weary of felting? A new book called Fashioning Technology: A DIY Intro to Smart Crafting will pull you out of your craft rut, as author Syuzi Pakhchyan shows step-by-step how to incorporate a tech flair to your projects. Armed with LEDs, phosphorescent ink, and polymorph plastic, among other "smart materials," you'll be making fun and funky accessories and toys in no time. Projects range from "Rock Star Headphones" to a "Luminescent Tea Table," combining the trendy handmade movement with a hip aesthetic.

Making processors for mobile gadgets is mostly an afterthought. Hone a chip from a desktop PC, tweak it to suck less power and vent less heat, and stick it in a laptop. Not so with Intel’s Atom. It’s Intel’s smallest-ever microprocessor, a 24-square-millimeter chip crammed with 47 million data-carrying transistors, and it’s paving the way for the next era of affordable, power-saving gadgets.

Another awesome set of entries to the PopSci photo contest. Thanks to everyone who entered and congrats to this week's winner:
Podboq. For all you aspiring photogs, another contest is in the works. After the jump, get the low down. And as always, happy shooting!

The transportation program at the Art Center College of Design has produced legendary car designers, including BMW chief of design Chris Bangle and Henrik Fisker, the creator of the Fisker Karma electric supercar. But this year, after professor Bumsuk Lim’s inaugural motorcycle-design class, the buzz is all about bikes, especially Jake Loniak’s exoskeleton motorcycle concept Deus Ex Machina.

Lots of amphibians (a third to a half of all species) are dying, and their deaths are the breaking-edge of what many scientists are calling the first mass extinction since the dinosaurs checked out 65 million years ago, researchers say in a new paper published online in the Journal Proceedings of the National Academy of Sciences.

With The Dark Knight, the action-infused sequel to Batman Begins, dominating the box office in recent weeks, it’s clear that the revitalization of the new Batman franchise is no fantasy. In my opinion, The Dark Knight doesn’t quite come up to the level of its predecessor—its relentless action sequences left me a bit numb after a while, and the constant quick cutting in these scenes gives the audience too much to absorb all at once.