Science

A good hearty conspiracy theory can shine a sharp light on two of humanity's most enduring traits.

One, of course, is humanity's boundless imagination. The other is humanity's essential suspicion of humanity.

So while you might be deeply immersed in Bill Nye's explanation of the Russian meteorite, those with darker sensibilities have filled the Web with their fears and hauntings about the phenomenon.

There are few nations with greater awareness of dark sensibilities than Russia. The fact that there seems to be little evidence of meteorite fragments on the ground has encouraged some Russians to offer their own suspicions.… Read more

The sky is totally falling.

As if it weren't enough that a meteor boomed across the Russian sky today, shattering windows and injuring about 1,000 people, an asteroid 150 feet across is about to sideswipe our planet.

Asteroid 2012 DA14, while unrelated to the meteor, is just as scary. It will graze us at just 17,200 miles from the surface, passing between Earth and our geosynchronous weather and communications satellites.

Possible asteroid strikes are no joke, and if you ask me (or the dinosaurs), they represent the biggest threat to our planet aside from human stupidity.

Fortunately, some non-stupid humans are finally getting serious about countering this threat. … Read more

New research out of UC Davis suggests that when couples who are romantically involved interact, their heart and respiratory rates sync up.

But that doesn't mean you should bring a pair of heart rate monitors to scout out potential partners on your first date. When study participants were paired with someone outside their relationship, neither their heart rates nor their breathing closely matched.

To conduct their research, which was funded by the National Science Foundation and published in the International Journal of Psychophysiology and Emotion, the psychologists in one study placed couples a few feet apart in a quiet, calm room and instructed them not to talk or touch. In another, the couples were asked to mimic each other without speaking. In both instances, heart and respiratory rates were closely matched.… Read more

If you like someone just a teeny-weeny bit, this Cupid is your ticket to love on Valentine's Day.

Physics students at Brigham Young University crafted this nifty god from carbon nanotubes that are 10,000 times smaller than a human hair.

They began by laying down microscopic iron "seeds" to form a Cupid pattern. When they applied a heated gas to the iron, the seeds sprouted into the desired shape. … Read more

The magic of physics can turn the mundane into something marvelous. Mark French, a mechanical engineering professor at Purdue University, designed a supersonic air-powered ping-pong ball cannon that shoots the lightweight object at speeds so fast I would consider the device a lethal weapon of science.

A ping-pong ball reportedly blasts out of the special cannon at speeds equivalent to Mach 1.23 -- nearly as fast as an F-16 fighter jet. As evidenced in the video below, the high-speed ball can put a clean hole through a plywood paddle, a VHS tape, and other objects. The amount of energy delivered by the Mach-speed ping-pong ball equals the force of a baseball thrown at 125 mph or a brick falling from several stories up.… Read more

Antarctica isn't the friendliest place on earth. It's cold. It's snowy. It's tough on researchers and tough on their research stations. The cold continent has seen its fair share of stations abandoned as they're slowly consumed by layers of snow and ice. A new research station is looking to outlast its predecessors by crawling up above the snow when needed.

The Halley VI research station is the newest addition to the family for the British Antarctic Survey. It's known as the "first fully re-locatable research station in the world." That means it's got legs and it knows how to use them.… Read more

Beloved astrophysicist Neil deGrasse Tyson is no stranger to the world of comic book superheroes, having already found the location for Superman's home planet. He has now turned his keen scientific mind to the Marvel world and the issue of just how much Thor's mighty hammer weighs.

Thor's hammer Mjölnir is said to be made of neutron-star matter. Tyson did the calculations and determined the hammer must therefore weigh as much as 300 billion elephants. That's not a common form of weight measurement, so we have to do some further calculations to translate elephants into pounds.… Read more

He's got blood flowing through him, but he sure isn't human. Meet Rex, the world's first complete "bionic man."

Rex has the face of a man; prosthetic limbs; a functional artificial blood-circulatory system; and artificial organs including a pancreas, kidney, spleen, and trachea. At 6.5-feet tall, Rex is valued at a whopping $1 million.

Created for the TV documentary series "How to Build a Bionic Man," Rex was constructed by a team of roboticists. The researchers say they wanted to test scientific boundaries and demonstrate how modern science is beginning to catch up with sci-fi in the race to replace body parts with man-made alternatives. … Read more

Moths, despite munching on wool sweaters, are pretty innocuous for the most part. Scientists from the University of Tokyo decided to up the ante and put some moths in command of their very own robot vehicle.

The male silkmoths didn't have to pass driver's ed first, they just had to use their natural instincts for tracking down the female moth's sex pheromone. That's right, male moths do pretty much the same thing male humans do when they get their first car: go cruising for girls. … Read more