The Past, Present, and Future of Data Storage As we approach the end of 2011 and look forward to another year, we pause to reflect on the long history of data storage. Mankind's ability to create, process, store, and recall information is light years ahead of the days of cave paintings and engravings on stone tablets. Vast amounts of information can be stored on drives smaller than your thumb, and data centers are cropping up at an increasingly high rate. What does the future of data storage hold? Embed this image on your site: Connecting Batteries in Series or Parallel We frequently get asked the question, "How am I supposed to connect my battery if I want to double the capacity but not the voltage?", or similar questions. It can be confusing if you've never done it, but hopefully this'll make it simpler. Be sure to read the important notes at the bottom to protect yourself from damaging any equipment! Connecting in Series When connecting your batteries in Series you are doubling the voltage while maintaining the same capacity rating (amp hours). This might be used in a scooter, Power Wheels kids vehicle, or other applications. Connecting in Parallel When connecting in Parallel you are doubling the capacity (amp hours) of the battery while maintaining the voltage of one of the individual batteries. Important notes: When connecting batteries in a pack there are some important things to keep in mind - - Find out the requirements of your application. See all of our Battery Articles.
Graph Databases, published by O'Reilly Media How to Make Toy Air Ships, Ray Guns and Much More from Old Tin Cans Photos Courtesy of Tinplate Girl If you try to live sustainably, chances are you recycle the tin cans that once fed you soup or mints. But there are lots of good reasons not to, and the alternative is upcycling them yourself. The team behind the site is made up of Adriane (Tinplate Girl) and Marc (Tinplate Dad). Then there are the projects themselves- 26 for the moment, with more to come. The only downside is that with the exception of a few freebies, the instruction manuals come with a price tag (between $3 and $10).
Home | OrientDB Document-Graph NoSQL DatabaseOrientDB Document-Graph NoSQL Database Transistors made from cotton yarn, t-shirt computers incoming Altering the very fabric of technophilic society, a multinational team of material scientists have created electric circuits and transistors out of cotton fibers. Two kinds of transistor were created: a field-effect transistor (FET), much like the transistors found in your computer’s CPU; and an electrochemical transistor, which is similar but capable of switching at lower voltages, and thus better suited for wearable computers. If you’re like me, you’re probably thinking that cotton is a very strong insulator and not at all conducive to conductiveness — but before you accuse this team from Italy, France, and the United States of witchcraft and wizardry, bear in mind that they kind of cheated. Cotton is just the substrate: To make it conductive, the researchers coated cotton threads in a variety of other materials. To make conductive “wires,” the team coated the threads with gold nanoparticles, and then a conductive polymer.
Comparison | OrientDB Manual 1.7.8 This is a comparison page between GraphDB projects. To know more about the comparison of DocumentDBs look at this comparison. We want to keep it always updated with the new products and more features in the matrix. If any information about any product is not updated or wrong, please change it if you've the permissions or send an email to any contributors with the link of the source of the right information. The products below all support the TinkerPop Blueprints API at different level of compliance. Below the supported ones. The table below reports the time to complete the Blueprints Test Suite. So this table is just to give an idea about the performance of each implementation in every single module it supports. Lower means faster. All the tests are executed against the same HW/SW configuration: MacBook Pro (Retina) 2013 - 16 GB Ram - MacOSX 12.3.0 - SDD 7200rpm. To run the Blueprints Test Suite you need java6+, Apache Maven and Git.
Soon you'll 'evolve' yourself new furniture using 3D printing Most of the time, when you buy something, you end up getting someone else's idea of what you really want. With custom 3D printing becoming cheaper and more available, the options for customization are endless, and a new service could allow the "evolution" of new products that are perfect for you. Evolution, at its most basic, is the idea that good and useful things will tend to be favored in designs over things that are not quite so good and useful. You can see it all over the place in animals, but it's equally true in products: version 2.0 of your computer or car or sunglasses or furniture takes everything that was good about version 1.0 and makes it better, while mixing in a bunch of new stuff at the same time. Or at least, that's the idea. But why should you have to suffer through version 1.0 to get to version 2.0? So, great. EndlessForms is a website that will let you design anything (anything!) Via EndlessForms (Thanks Travis!)
Want To Make A Giant Telescope Mirror? Here's How hide captionTemperatures inside this giant oven will reach 2,100 degrees Fahrenheit. Large blocks of glass inside the oven will melt as the whole oven spins around at a rate of five times per second, creating a curved and smooth telescope mirror. Ray Bertram/Steward Observatory Temperatures inside this giant oven will reach 2,100 degrees Fahrenheit. The world's largest mirrors for the world's largest telescopes are made under the football stadium at the University of Arizona. Why there? "We wanted some space, and it was just used for parking some cars, and this seemed like a good use," says Roger Angel. Angel is the master of making big mirrors for telescopes. At the moment, he's making the second of seven mirrors, each 27 feet across, that will go into the Giant Magellan Telescope (GMT), which will be sited on a peak in the Andes Mountains in Chile. In the old days, you made mirrors by ladling molten glass into a mold. Then they heat the furnace to 2,100 degrees Fahrenheit.
Andrew S. Harmon Repurposed Etched Glass Spice Jars... As an avid recycler, I often find myself admiring the numerous boxes of glass bottles in our garage, awaiting their fate. When I noticed more than a dozen empty bottles from one particular product, I knew I had a problem there must be something else I could do other than toss them into a recycling bin once a week. In order to justify my purchase of a caffeine-laden treat, I decided to repurpose and upcycle the glass containers from my favorite splurge. Enter Starbucks Frappuccino. And no, we're not rich. With a few supplies, and as many glass bottles as you can find, you can quickly organize a spice cupboard or pantry in a very attractive manner! Drink bottles, salad dressing bottles, there are so many options, so many different sizes and shapes. Come on, let's see what we can come up with!