background preloader

Amazing Rust.com - Bismuth Crystals

Amazing Rust.com - Bismuth Crystals
How to make Bismuth crystals Bismuth Crystals Bismuth (element #83 on the periodic table) forms beautifully colored and geometrically intricate hopper crystals, shown in the image to the left, as it slowly cools and solidifies from its molten state. The distinctive, 'hoppered', shape of a Bismuth crystal results from a higher growth rate around its outer edges than on its inside face. The crystal's eye-catching array of colors results from the formation of a thin oxide layer on its surface. Growing Bismuth Crystals In order to grow high quality crystals, very pure Bismuth metal must be used. Another important factor which affects the quality and size of Bismuth crystals is the cooling time. The melting point of Bismuth is relatively low compared to other metals at only 271 °C (520 °F), which is low enough to easily melt using a small propane torch or even a laboratory hot plate. Pictures of large Bismuth crystals Related:  sort

Science of Seasoning: Salt Sculpture Activity When you add salt to water, the crystals dissolve and the salt goes into solution. But you can’t dissolve an infinite amount of salt into a fixed volume of water. When as much salt has been dissolved into a solution as possible, the solution is said to be saturated. The saturation point is different at different temperatures. The higher the temperature, the more salt that can be held in solution. Supersaturation is an unstable state. "This Is Really a Thing" Unique finds, geeky gadgets and great gift ideas How do your crystals grow? Because one of the main bottlenecks in determining the structure of protein molecules is producing good isolated single crystals, improved crystallization techniques would be useful in a wide range of genomics and pharmaceutical research. Research reported in the Journal of Chemical Physics uses fluorescence correlation spectroscopy (FCS) to investigate the processes at the surface of a growing crystal. By focusing a laser on the crystal surface and measuring the resulting fluorescence, FCS can resolve dimensions as small as a single wavelength of the light. "Another advantage of fluorescence is that it provides a high signal-to-noise ratio," says author Shinpei Tanaka of Hiroshima University in Japan. "We are able to measure very dilute solutions at the crystal interface." The researchers found that when single tetragonal crystals of egg-white lysozyme formed, there was no concentration gradient between the solution and the crystal surface.

Microwave signals turned into electrical power 11 November 2013Last updated at 10:18 ET Researchers have found a way to capture microwave signals and turn them into power An electrical current capable of charging a mobile phone has been created from microwave signals. A team from Duke University said the technology they had used had been as efficient as using solar panels. The device they created used metamaterials, which capture various forms of wave energy and convert them for other applications. In the future, satellite, sound or wi-fi signals could be "harvested", according to the US researchers. "We're showing... these materials can be useful for consumer applications," said engineering student Alexander Katko. Using fibreglass and copper conductors on a circuit board, the researchers converted microwaves into 7.3 volts of electricity. "We were aiming for the highest energy efficiency we could achieve," said team member Allen Hawkes. Metamaterials are artificial materials that display properties not usually found in nature.

The 15 Best Websites, According to Redditors Unraveling the ever-changing World Wide Web to find the very best sites can be a daunting and time consuming task. Or, you could just ask Reddit. That's what one Redditor did Thursday, posing to the rest of the community the question, "What is the best website other than Reddit?" Commenters sprang into action posting thousands of comment replies, naming sites that run the gamut from arcane to whimsical. Please note that the list may change as more people chime in with their opinions. 1. If you don't know what Wikipedia is by now, perhaps you should check the Wikipedia page for it. 2. Redditor "kinkyroach" compiled a diverse list of nifty sites and provided a short description for each one. 3. Don't call it a search engine. 4. This streaming media and DVD-by-mail website has revolutionized the entertainment industry. 5. This is one of the most popular sites on the Internet for pornography. 6. Check your assumptions at the door. 7. 8. 9. 10. 11. Kickstarter is the king of crowdfunding.

Smartphone-Controlled Paper Airplane Soars on Kickstarter Designing the perfect paper airplane — the one that flies the farthest and the fastest — is about to get easier. Power Up 3.0, built by designer Shai Goitein, promises to give your basic paper model an upgrade, using a small attachable propeller and rudder for a little more speed and steering control. The most impressive part of this flight enthusiast's design is the Bluetooth connectivity, which allows you to control your paper airplane via your smartphone with an accompanying app. Tilting your phone to the left or right allows you to turn your airplane as it flies a whopping 60 yards. The app also includes a compass, controls for thrust and readouts for battery life and range. The project has soared past it's $50,000 goal, even topping its increased $150,000 goal, allowing Goitein's team to create both an iOS and Android version of the app. Have something to add to this story? Image: Power Up Toys

Researchers develop new cloaking technology Researchers at the University of Toronto have found a way to cloak objects from radar by surrounding them with antennas. Researchers have found a way to hide objects from radar detectorsThe cloaking technology covers objects in tiny antennas that create an electromagnetic fieldCloaking technology has potential uses for the military and for improving cellular signals (CNN) -- There are a lot of reasons to want to make things invisible, other than it just being incredibly cool. There are the many potential military uses of cloaking technology, of course, but it could also help improve cellular signals by hiding objects that would normally block and weaken signal strength. Cloaking technology is popular science fiction trope, but real scientists have been researching and developing new ways to make cloaking objects a reality for years. In a paper published this week in the journal Physical Review X, they describe their new take on cloaking. Scientists a step closer to 'invisibility cloak'

11 Deep Space Photos You Won't Believe Aren't Photoshopped It's hard to overstate the excitement back in 1990 when the Hubble Space Telescope left Earth. Scientists had worked the public into a frenzy with this thing since the 1970s, promising that without the stupid atmosphere to hold it back, its vision would be so clear, you could peer right into the butthole of God. So we didn't have a problem when it blew past its $400 million budget and landed at $1.5 billion, because that first picture would be worth every penny. Via Wikipedia It was a problem with a mirror, and it was fixed with a simple three-year replacement project. #11. Via Spacetelescope.org Known in the scientific community by its more poetic name of ARP 273, this is an image of two galaxies caught in a gravitational clusterfuck after the smaller one passed through the larger one. #10. Via Spacetelescope.org How detailed is it? Now, let's view just that miniscule selection at the original image's full size: Holy shit, it's like the dripping aftermath of Japanese porn. #9. Those? #8.

Call it a virtual Lego set for taking on cancer. A company called Parabon Nanolabs has recently developed a groundbreaking suite of CAD tools and technologies aimed at creating the next generation of cancer-fighting drugs, and the company says it's essentially a 3D printing system to tailor drugs for treating cancer. Parabon NanoLabs was co-founded by Duke University associate ECE professor Chris Dwyer, Dr. Michael Norton, a pioneer in DNA nanotechnology, and Dr. Steven Armentrout to identify applications for DNA nanotechnology. Using seed money and support from the National Science Foundation and National Institutes of Health, Parabon began investigating techniques which use synthetic DNA to create breakthrough products. Cancer medicines, typically so expensive that they might reasonably be priced on a per molecule basis, are the target of the work. Armentrout describes the process as creating complementary sequences of DNA which can form structures of virtually any shape. Dr.

SeeSpace InAiR: The World's 1st Augmented Television We have now surpassed the $150K goal to add streaming to the list of features. And if we reach the $200K level, we will also add an Extra HDMI input and Preset Apps to InAiR. Thanks for the continued support for this project. InAiR brings you the world's first Augmented TV experience With InAir plugged in, your TV becomes an Augmented Television. You can turn any ordinary television into a new and wonderful medium, filled with rich and dynamic information from the Web. InAir works with any standard television. When activated in 3D mode, the layers of Internet content appear to be positioned in front of the screen and can be dynamically manipulated by the viewer. The following video will allow you to get a glimpse of the 3D vision of our product, where the interface and content appears in layers in front of the screen. But is is important to note that the same dynamic, layered experience can work in 2D mode on any television. We care a lot about quality. InAiR is a smart HDMI cable. News

15 Things You Should Give Up To Be Happy Luminita Saviuc, Purpose FairyWaking Times Here is a list of 15 things which, if you give up on them, will make your life a lot easier and much, much happier. We hold on to so many things that cause us a great deal of pain, stress and suffering – and instead of letting them all go, instead of allowing ourselves to be stress free and happy – we cling on to them. Not anymore. Starting today we will give up on all those things that no longer serve us, and we will embrace change. Ready? 1. 2. “By letting it go it all gets done. 3. 4. “The mind is a superb instrument if used rightly. 5. “A belief is not an idea held by the mind, it is an idea that holds the mind.” 6. 7. 8. 9. “Follow your bliss and the universe will open doors for you where there were only walls.” 10. “The highest form of ignorance is when you reject something you don’t know anything about.” 11. “The only fear we have to fear, is fear itself.” 12. 13. 14. 15. About the Author

50 Ways to Get Your Life in Order This is an article by guest writer Mark Foo, author of The 77 Traits of Highly Successful People. There’s nothing wrong with a little bit of chaos in your life. As Albert Einstein once stated, “Three rules of work: out of clutter find simplicity, from discord find harmony, in the middle of difficulty lies opportunity.” Unexpected challenges are what make us stronger, so don’t avoid them. Recycle old papers that are filling drawers in your house. Do you have a tip to help us get our lives in order?

Related: