Hasta La Gadget!

Chalk one up for atomic force microscopy. As detailed in a paper published recently in the journal Science, researchers in China have used the imaging technique (as opposed to scanning tunnelling microscopy) to capture an image of a hydrogen bond for the very first time. As io9 explains, hydrogen bonding is common in nature — responsible for the properties of water and the link between the two strands of DNA’s double helix — and it’s something that chemists have long been able to visualize, albeit only on a theoretical level. According to Chemistry World, while there remains much to learn about the nature of hydrogen bonds, the researchers hope that this latest development will help lead to atomic force microscopy (or AFM) being used as a routine tool to examine molecules and offer a clearer picture of them.

Filed under: Science, Alt

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Via: io9, The Verge

Source: Science

More than four years after winning a contract (along with Space X) to resupply the International Space Station, Orbital Sciences has finally docked its Cygnus capsule with the space outpost. The achievement makes it the second private outfit to have run a resupply mission to the station, with Musk and Co. beating them to the punch last October. Achieving the rendezvous with the ISS didn’t go without a hitch, however: a data format bug delayed the planned September 22nd berthing until a software fix was applied. Once Monday morning rolls around, the craft’s hatch will be opened to reach 1,300 pounds worth of supplies, which include clothing, food and student experiments. In 30 days’ time, the cargo vessel will detach and head for a destructive reentry over the Pacific Ocean.

[Image credit: NASA, Instagram]

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Source: NASA, Orbital Sciences

We already knew Mars was blanketed in ancient riverbeds, which points to the existence of water in the distant past. What we didn’t know, however, is that H2O exists on Mars in the here and now — albeit embedded in Martian soil. A paper recently published in the journal Science revealed that as much as two percent of dirt from the Red Planet contains the precious liquid. The Curiosity rover gathered samples of the sand from the “Rocknest” area near the Gale Crater back in August of 2012 and delivered it to the Sample Analysis at Mars (SAM) instrument inside its belly. After heating the sample to around 835 Celsius, SAM was able to detect a surprising amount of carbonate materials, which are formed in the presence of water.

Laurie Leshin, dean of science at Rensselaer Polytechnic Institute and the study’s lead author said the findings are conclusive: “If you took about a cubic foot of the dirt and heated it up, you’d get a couple of pints of water out of that — a couple of water bottles’ worth that you would take to the gym.” Another SAM discovery is a mineral called perchlorate that could interfere with thyroid functions if ingested. Still, if we could work around that, the findings could prove tremendously useful for future Mars explorers. “When we send people,” Leshin said in the paper, “they could scoop up the soil anywhere on the surface, heat it just a bit, and obtain water.” We’re likely years away from having fishing expeditions in Mars, of course, but this does soften the blow about the possible lack of life.

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Via: Science Daily

Source: Science

The 2010 Deepwater Horizon may be forgotten to many, but remnants of its destruction still remain in the Gulf of Mexico. Mercifully, it appears that researchers at Texas A&M University “have developed a non-toxic sequestering agent-iron oxide nanoparticles coated in a polymer mesh that can hold up to 10 times their weight in crude oil.” In layman’s terms, they’ve engineered a material that can safely soak up oil. As the story goes, the nanoparticles “consist of an iron oxide core surrounded by a shell of polymeric material,” with the goal being to soak up leftover oil that isn’t captured using conventional mechanical means. The next step? Creating an enhanced version that’s biodegradable; as it stands, the existing particles could pose a threat if not collected once they’ve accomplished their duties.

Filed under: Misc, Alt

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Source: Materials 360 Online, Inside Science, ACS Nano

Remember Bot & Dolly’s awesome Kinetisphere from Google I/O 2012? Today the San Francisco-based design and engineering studio released Box, a film of the first ever synchronized live performance featuring projected 3D computer graphics, robots and actors. Imagine two Kuka industrial robots moving walls around and a projector displaying CG onto them in complete sync. Add a second projector aimed at the floor. Now introduce an actor and capture the entire scene with a 4K camera mounted on a third Kuka robot in sync with the other two. The result is a mind-blowing experience that takes CG into the real world. Flat walls transform in to 3D cubes, objects levitate and teleport — it’s magic.

In fact, it’s even more impressive in person. The company believes that “this methodology has tremendous potential to radically transform theatrical presentations”. We briefly talked with Tarik Abdel-Gawad, Creative & Technical Director and Bradley G Munkowitz, Design Director (of Tron fame) about the technology behind the performance. The project uses two IRIS and one SCOUT robotic motion control platforms (based on Kuka robots) plus two powerful high-resolution projectors. Bot & Dolly’s in-house software, which integrates with Autodesk‘s Maya, is used to synchronize and control the performance. As such, the work serves “as both an artistic statement and technical demonstration.” See the video for yourself after the break.

Filed under: Misc, Robots, Alt

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Source: Bot & Dolly