It's true! Science proves it!
And it's more than just an effect of infrared imaging. If you duck over to Joseph Stromberg's post at the Surprising Science blog, you'll see a photo of a real, live reindeer with an adorably red nose (and upper lip).
Turns out, it's the result of an evolutionary adaptation. Some (but not all) reindeer have noses full of densely packed blood vessels — a difference that makes those reindeer better at regulating their own body temperatures.
To come to the findings, the scientists examined the noses of two reindeer and five human volunteers with a hand-held video microscope that allowed them to see individual blood vessels and the flow of blood in real time. They discovered that the reindeer had a 25% higher concentration of blood vessels in their noses, on average.
They also put the reindeer on a treadmill and used infrared imaging to measure what parts of their bodies shed the most heat after exercise. The nose, along with the hind legs, reached temperatures as high as 75°F—relatively hot for a reindeer—indicating that one of the main functions of all this blood flow is to help regulate temperature, bringing large volumes of blood close to the surface when the animals are overheated, so its heat can radiate out into the air.
Also: red-nosed reindeer on treadmills, you guys. This is clearly the most adorable science of the holiday season.
Read the full story
Via Bart King
A Mars science news update from NASA’s Jet Propulsion Laboratory, in Pasadena, California.
Graduate student Jason Ahrns captured a stunning image of red sprites over Nebraska while aboard a plane chartered by the National Center for Atmospheric Research. And behold Scott McPartland’s rare video of the phenomenon in May.
Randy L. Korotev from the Washington U in St Louis Department of Earth and Planetary Sciences presents this handy flowchart (based on this one by Deborah Guedes) for deflating your excitement at having found rock that may be a meteorite but almost certainly isn’t. Today’s XKCD offers a handy abridgment if you find this one […]
To be a Pokémon master, you’ll need a phone that won’t constantly die on you. Because nothing is worse than seeing the screen go black right as you’ve finally found the Charizard of your dreams.That’s why we’re so excited about the LinearFlux PokeCharger Portable Battery ($39.99). With its 3.0 Amp HyperCharging technology, this slim battery will […]
The tech industry is constantly innovating, and in order to stay competitive, you’ll need to keep up. The Programming Into the Future Bundle was created to teach you the skills employers are looking for at this very moment, including in-demand coding languages like Google Go.The bundle of courses includes instruction on a range of innovative tools that advanced coders […]
If you’re running low on MacBook storage, your options are pretty limited. External hard drives mean toting around another piece of bulky equipment, and you probably don’t want a USB stick constantly protruding from your laptop.That’s why the Nifty MiniDrive for MacBooks is such a desirable alternative, and one of our top tech finds this year. You can add […]