Science

The NIST-F1 atomic clock that currently serves as primary time and frequency standard for the U.S. is expected to neither gain nor lose a second in more than 100 million years. That might sound pretty accurate, but a proposed nuclear clock could make it look like a cheap digital wristwatch. It is claimed that the proposed clock would neither gain nor lose 1/20th of a second in 14 billion years. To put that in context, that’s the estimated age of the universe.  Read More

Of all the childhood allergies, an allergic reaction to eggs is one of the most common. Typically, reactions can include wheezing, nausea, headache, stomach ache, and hives. In extreme cases, however, anaphylactic shock can result, which can itself sometimes lead to death. Eggs are difficult to avoid, too - they find their way into many foods that might not seem particularly "eggy," and are even used in flu vaccines. Needless to say, for some time now, scientists have been working on making eggs safe for everyone. A team from Australia's Deakin University is now claiming that they're well on the way to producing not just hypoallergenic eggs, but the chickens that lay them.  Read More

For some time now, speech-recognition programs have existed that attempt to reproduce the user’s spoken words in another language. Such “speech-to-speech” apps, however, provide their translations using a very flat, synthetic voice. Now, experimental new software developed by Microsoft is able not only to translate between 26 different languages, but it plays the translated speech back in the user’s own voice – complete with the inflections they used when speaking in their own language. It looks like a real-life version of Star Trek’s universal translator could soon be here.  Read More

When the petal of a flower is being formed, its shape is achieved by cells in one area expanding more than cells in an adjacent area. This uneven expansion causes the material to buckle, creating the desired curves and creases. Scientists from the University of Massachusetts, Amherst have taken that same principle, and applied it to flat polymer gel sheets that fold themselves into three-dimensional shapes when exposed to water. Some day, such sheets could serve a number of useful purposes.  Read More

Are 3D printers not amazing enough already? Apparently some scientists at the Vienna University of Technology (TU Vienna) didn’t think so, as they have now built one that can create intricate objects as small as a grain of sand. While the ability to 3D-print such tiny items is actually not unique to the TU Vienna device, the speed at which it can do so is. According to the researchers, this makes the commercial production of things such as medical implants much more viable.  Read More

Repairing and refueling satellites robotically may seem rather mundane, especially when compared with moon landings, Mars rovers and the Hubble space telescope, but NASA's two-year Robotic Refueling Mission (RRM) experiment, now underway on the International Space Station (ISS), turns out to be surprisingly complex. Designed to demonstrate that servicing working satellites with remotely-controlled robots is a feasible option, NASA, in conjunction with the Canadian Space Agency (CSA), initiated the first of several RRM test tasks just a few days ago and the results look very promising.  Read More

While hydrogen is considered a “clean” fuel because the only waste product it generates is water, the conventional way to produce it relies on electricity, which is usually produced through the burning of fossil fuels. Researchers at the University of California, San Diego (UCSD), have now developed a “3D branched nanowire array” that they claim could cheaply and cleanly deliver hydrogen fuel on a mass scale.  Read More

There are a number of reasons that some people choose not to eat meat – for instance, they may not want to support the slaughter of animals, they may wish to avoid the health risks associated with consuming too much animal protein, or perhaps they’re not big fans of the environmental impact of raising livestock on a commercial scale. Unfortunately, if these people still want to eat meat-like foods, a lot of the meat alternatives currently available are kind of ... yucky. Germany’s Fraunhofer Institute for Process Engineering and Packaging, however, is working on a device nicknamed the “vegetarian cutlet factory.” It produces continuous slabs of veggie-based mock meat, which is reportedly quite similar to the real thing.  Read More

Velcro is pretty handy stuff, but imagine if there was a soft, stretchy material with the same qualities. Well, now there is. Scientists from the University of California, San Diego have created a self-healing hydrogel that binds together in seconds, essentially copying the Velcro process at a molecular level. The new material could potentially find use in medical sutures, targeted drug delivery, industrial sealants and self-healing plastics.  Read More