Setup a DIY Network ‘DropBox’ (aka PirateBox) PirateBox allows you to quickly setup a mobile wireless file sharing network. Basically, it’s a P2P file-sharing device that can turn any space into a temporary, but secure wireless file sharing network. Multiple users within range of the device can connect to the network without any log-in and immediately start downloading or uploading files via their computers or mobile devices. As it is not connected to the internet, the system is secure from outside attacks. Also, users remain anonymous as no user logs are generated. The PirateBox is made up of a wireless router and light-weight Linux server connected to a USB hard drive. Popular File Server Projects: Comments are closed. Magnetic levitation Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic pressure is used to counteract the effects of the gravitational and any other accelerations. Earnshaw's theorem proves that using only ferromagnetic or paramagnetic materials it is impossible to stably levitate against gravity; however, servomechanisms, the use of diamagnetic materials, superconduction, or systems involving eddy currents allow to achieve that. In some cases the lifting force is provided by magnetic levitation, but there is a mechanical support bearing little load that provides stability. Magnetic levitation is used for maglev trains, magnetic bearings and for product display purposes. Lift[edit] Magnetic materials and systems are able to attract or press each other apart or together with a force dependent on the magnetic field and the area of the magnets, and a magnetic pressure can then be defined. where Stability[edit]
Hack Your Gadgets and Void Your Warranties This Weekend Speaking of hacking - why not - let me share my hacking experience today: On multiple levels! - A digital photography tech comment, if you will. I just received my brand new Eye-fi X2 Pro card. Totally forgetting to check how Magic Lantern firmware hack - currently installed on my Canon 550D/T2i - deals with it, anxious as I was to test the thing up, popped it in and turned the camera on. Nothing. Recharged both my batteries and tried again to no avail. At that point, I was having a mini heart attack. Removed the battery, popped my 8Gb Sandisk back and, oh relief of the Gods, everything was back to normal. Google time! Found out after some research that new X2 versions of the Eye-fi cards won't work well with Magic Lantern. Still tried several things... disabled Magic Lantern (or to the more technical ML fan - set bootflag off), low level format the Eye-fi card, tried installing ML back with the Eye-fi card, camera froze while trying to install the firmware. No way. Installed the app, nothing.
s “Internet of Things” Camera March 13, 2012 AT 12:11 am Here’s our Arduino based “Internet of Things” camera. It’s a simple remote monitoring using the Eye-Fi wireless SD card and Adafruit Data Logging Shield for Arduino. The Eye-Fi card is a tiny wireless memory card. It stores photos and fits inside a camera just like a regular SD card, but also has built-in WiFi transceiver that can upload images to your computer, smartphone or to various photo-sharing sites. We use one here when taking pictures for our tutorials — it’s a great timesaver, eliminating the extra USB transfer step that’s otherwise necessary. What makes this combination way cooler than just a normal SD card or a USB cable to a computer is all the infrastructure provided by the Eye-Fi service — not just transferring images to your computer, but pushing them to your smartphone, photo-sharing sites like Flickr, issuing email or Twitter notifications, etc. Read more… & code is on GitHub. Related Sorry, the comment form is closed at this time.
WTF | Oddity Central - Collecting Oddities - Part 6 Sadhu Amar Bharati is an Indian holy man who claims he has kept his right hand raised in the air since 1973. Now, 38 years later, his hand is just a useless piece of skin and bone, but has become a symbol for Shiva worshipers around India. Until 1970, Amar Bharati was an average middle-class man who lived a normal life. He had a job, a home, a wife and three children, but none of that mattered when he woke up one morning and decided to leave everything behind and dedicate his life to serving the Hindu god Shiva. Other sources claim Amar Bharati felt disillusioned by all the fighting going on in the world, and decided to raise his right arm for peace.
Fireflies in a Jar This is a simple project that uses NE-2 neon bulbs in a group of 'relaxation oscillators.' In essence, an RC circuit charges a capacitor at a rate determined by a resistor and discharges the cap though a neon bulb to start the process over. The effect is a blinking lamp. With a group of these oscillators you get multiple blinking bulbs and the effect is similar to fireflies. Put them into a jar and Bob's your uncle. I made this project using junk parts and so I don't have part numbers or retail sources to offer. You will need: 10 1uf capacitors 150v 10 1 meg ohm resistors 1/4 watt 10 NE-2 neon lamps 2 Diodes (300v) Solder Wire Shrink Tubing (1/8 in) Power cord and male wall plug Tools: Wire cutters Soldering Iron Hot Glue Gun (Epoxy OK too) Rotary Tool (optional) Thinking Cap* * You will be dealing with AC line voltages, so think before you touch anything.
ClipX ClipX is a tiny clipboard history manager. It is sweet, it is free, use it. License Copyright 2004-2008 Francis Gastellu. Download ClipX Latest stable version: ClipX 1.0.3.8 for x86 (Nov. 30th, 2005) Latest beta version: ClipX 1.0.3.9 beta 7 x86 (Jul. 6th, 2008) ClipX 1.0.3.9 beta 7 x64 (Jul. 6th, 2008) Note that beta versions are work in progress. Download Plugins ClipX Stickies Plugin 1.9Stickies Plugin 1.9 for ClipX x64 Keeps a list of permanent entries at the bottom of your history. ClipX Auto Update Plugin 1.6Auto Update Plugin 1.6 for ClipX x64 Automatically checks for and downloads the latest version of ClipX (RSA authenticated). ClipX Limits Plugin 1.2Limits Plugin 1.2 for ClipX x64 Lets you ignore some clipboards based on size in memory. ClipX "Save Image As" Plugin 0.1 Lets you save image clipboards as PNG or JPG (Requires GDI+), by Miguel Garrido. ClipX DiskLog Plugin 1.2DiskLog Plugin 1.2 for ClipX x64 Records your clipboard lifetime history to disk (text entries only). Donate Thanks Contact
Infographic Creation Made Easy with Visual.ly Create Today marks an important milestone for Visual.ly: the release of our tools for automatic infographic creation. Our team has made hundreds of infographics, so we know how hard it can be to find the data, do the necessary research, and make sure you are following the principles of good data visualization, while still coming up with a design that people will want to hang on their wall and spread through the interwebs. That’s why we’ve built data feeds into a number of infographic designs, created for you by our team of expert designers. Making an infographic, based on your own data, couldn’t be easier. We are social creatures, so we thought it only natural to start with Twitter and Facebook. Another reason was our launch at the SXSW Festival, a place where many new stories are being told. But this is just the beginning. Let us know what you’d like to see in Visual.ly Create.
Ruby Kickstart Ruby on Rails Tutorial: Learn Rails by Example book and screencasts by Michael Hartl Michael Hartl Contents Foreword My former company (CD Baby) was one of the first to loudly switch to Ruby on Rails, and then even more loudly switch back to PHP (Google me to read about the drama). Though I’ve worked my way through many Rails books, this is the one that finally made me “get” it. The linear narrative is such a great format. Enjoy! Derek Sivers (sivers.org) Founder, CD Baby Acknowledgments The Ruby on Rails Tutorial owes a lot to my previous Rails book, RailsSpace, and hence to my coauthor Aurelius Prochazka. I’d like to acknowledge a long list of Rubyists who have taught and inspired me over the years: David Heinemeier Hansson, Yehuda Katz, Carl Lerche, Jeremy Kemper, Xavier Noria, Ryan Bates, Geoffrey Grosenbach, Peter Cooper, Matt Aimonetti, Gregg Pollack, Wayne E. About the author Michael Hartl is the author of the Ruby on Rails Tutorial, the leading introduction to web development with Ruby on Rails. Copyright and license Welcome to the Ruby on Rails Tutorial.
Heroku | Cloud Application Platform The First 45 Years Of Star Trek I feel almost childishly uneducated when it comes to Star Trek, and the culture that surrounds this quite amazing series of movies and TV shows. There is no doubt Star Trek has had a huge impact on society, and I think the cast members should feel proud that they have been a part of a world-changing concept that will only grow stronger with time. There are gadgets, technologies and styles all derived from Star Trek, and I am sure no one could disagree with me when I say that Star Trek has had as much of an impact on the world as Star Wars, if not more. It’s once again a question about which side you vote for. Some say Star Wars, while others say Star Trek, if you know what I mean. It’s with fascination that I begin to read and look through this information packed Star Trek infographic which replays 45 years of pure sci-fi history.
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