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Jac Londe

D-Link unveils Cloud Router 1200 and 2000, dishes out WiFi in tube form -- Engadget - 0 views

  • D-Link unveils Cloud Router 1200 and 2000, dishes out WiFi in tube form
  • oth will let you remotely administrate the 802.11n router's devices from an Android or iOS app, and they both carry four gigabit Ethernet jacks as well as a USB port for some network media storage. The differences lay exclusively in the wireless support, where the single-band 1200 caters to the frugal set at 300Mbps and the simultaneous dual-band 2000 hums along at 600Mbps. Thankfully, the prices of the just-shipping access points are both about right for what you get: the Cloud Router 1200 is a cheap and cheerful $60, and the 2000 won't strain the wallet much more at $100.
Jac Londe

Lilliputian Systems - 0 views

  • LILLIPUTIAN SYSTEMS ANNOUNCES WAFER MANUFACTURING SUPPLY AGREEMENT WITH INTEL AND EQUITY STAKE BY INTEL CAPITAL
  • Wafer manufacturing will be conducted at Intel’s 200mm facility in Hudson, MA, and activities to support this manufacturing will commence immediately. 
  • In connection with the agreement, Intel will manufacture and supply production wafers, which are critical in the production of all of Lilliputian Systems’ product lines, most importantly its first product – the revolutionary USB Mobile Power System.
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  • Lilliputian Systems, Inc. (www.lilliputiansystems.com), developer of the world’s first Personal Power™ solution for consumer electronics devices, today announced that it has signed a Wafer Manufacturing Supply Agreement with Intel.  Additionally, Lilliputian Systems announced that Intel Capital, Intel Corporation’s global investment arm, has taken an equity stake in Lilliputian Systems.
  • “Today’s announcement ensures that we can offer our revolutionary Silicon Power Cell™ and Personal Power™ solutions to customers worldwide with industry-leading quality and reliability,” said Mouli Ramani, vice president of Business Development at Lilliputian Systems.
  • About Lilliputian Systems
  • he Company’s breakthrough solution delivers the only viable small form-factor battery replacement that provides the enormous run-time improvements demanded by today’s CE devices.  Lilliputian’s patented Silicon Power Cell™ technology is based on highly efficient and proven solid oxide fuel cells (SOFCs) and microelectromechanical systems (MEMS) wafer fabrication methods, and is fueled by recyclable high energy butane cartridges.  The technology is reliable, FAA approved and environmentally friendly.  Lilliputian’s solution enables longer run-time by providing a 5-10X improvement in volumetric energy density and 20-40X improvement in gravimetric energy density at a fraction of the cost.
Jac Londe

U49325 Sun Runner Stirling Engine - ABRA Electronics Inc. - 0 views

  • The U49325 Sun Runner Stirling Engine is a solar-powered Stirling Engine which offers a dramatic demonstration of energy conversion.   This motor and its parabolic mirror can be attached to any conventional camera tripod. When properly aimed at the sun, the polished aluminum parabolic mirror focuses incoming solar energy on the heat cap of the engine, which is converted to rotary motion. Unit comes complete with motor, parabolic mirror, and wrenches. Standard camera tripod is not supplied. This engine is completely assembled and ready to run. Each unit is test run at the factory prior to shipping. Motor runs at 2,000 RPM and up. This engine can also run as a horizontal engine with an alcohol burner. Demonstrate this exciting method of harnessing the sun’s clean and renewable energy to your students.  Weight: 6.00 lbs Dimensions: Engine: 8.25 x 3 inches (L x W) Flywheel: 3.25 inchesParabolic Mirror: 18 inch diameterPlease note that this item is designed to demonstrate the operating principles of a Stirling engine for educational use and is not designed for power production.  It can potentially be coupled with a generator for producing very small amounts of electricity but is incapable of powering anything beyond a small light bulb or LED.
Jac Londe

'Anti-Facebook' project nears launch | Software, Interrupted - CNET News - 0 views

  • open-source social networking project Diaspora
  • if the team is half as good at building software as it is at building hype, there might be something interesting in the upcoming release, and maybe even a viable business.
  • The big challenge is that the enterprise developer world isn't screaming out for an open-source Facebook, nor are consumers really looking to run their own instances of social networks. What they really want is for Facebook to take privacy more seriously
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  • And for those who do want to run their own social sites, there are any number of options, including Ning and Buddypress as well as extensions to Drupal and other publishing systems. Additionally, a number of other companies, including Ringside Networks, founded by JBoss alumni, took a run at developing a social application server only to find a lack of market.
Jac Londe

Explore Google Search - 0 views

  • Explore Google Search
  • Search is at the heart of everything we do at Google. Our engineers work every day to solve the hardest search problems, and thus improve your online experience. Here's a glimpse at what they do, the features they've built and the remarkable user stories that inspire our work.
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    Explore Google Search: Movies, weather, public data, earthquake information and more. Check out these 15 second search tips from Google to help you save time and get the most of your online experience.
Jac Londe

Daedalus Projects - 0 views

  • CrazyFlie flight video
  • The copter itself is organised around the main CPU. The job of this CPU is to acquire the physical measurement given by the gyroscopes and accelerometers and to control the motors to keep the copter stable. This is done by a regulation loop which controls the motors speed 250 times per second. The radio communication has a pretty low bandwidth and is used to send commands to the copter and receive telemetry data from it. The CPU program can be updated by radio.
  • The computer runs control and telemetry programs. The control program reads the input from a game-pad and sends control commands to the copter. We also have programs that can configure the copter regulation parameters and log the measurements in order to make easier to tune the regulation. All the development is done on Windows and Linux. Indeed we are 3 to work on this project, two of us work on Linux and one is mainly on Windows. Using FLOSS permit to handle that in a very effective way. We are mainly using the GCC compiler from CodeSourcery for the copter program compilation, GNU Make for the project build, Mercurial for the source control, and python/pyusb for the communication with the copter. All these softwares works seamlessly on both Linux and Windows and made the project pretty easy to handle. The distance between the motors (horizontally and vertically) is around 8 cm and the total weight is around 20 g.
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  • The top of the board contains the sensors and the control/communication electronic: The JTAG/Serial connector permit to program the processor and to communicate debug messages. The Main CPU is a STM32 Cortex-M3. It is clocked at 64MHz from the internal oscillator. The 2 Axis X-Y Gyro is an invensense IDG500. It has an analog output and thus is connected to the CPU analog to digital converters. The 1 Axis Z gyro is an invensense ISZ500. As the X-Y gyro this is an analog chip connected to the CPU analog to digital converters. The 2.4GHz Radio is based on a nRF24L01+ chip from Nordic Semiconductor. It is actually a breakout board sold by SparkFun. The radio is connected to the CPU via a SPI port. The 3 Axis Accelerometer is a SMB380 from Bosch. It is connected to the CPU via an I²C bus.
  • Here nothing particular, except that the little battery is taped on the bottom of the copter. The battery comes from a Silverlit x-twin plane and actually permit 4.5min of flight time.
  • Under the battery we mostly have power supply and the “power” electronics: The charge connector accepts 5V and permits to charge the battery The power switch permits to power the copter either from the charge connector or from the battery. The 5V step-up permits to increase the power voltage from the 3~4V coming from the battery to 5V. The two 3.3V linear regulators, reduces the 5V to power the copter electronic. The digital and analog 3.3V are generated independently. This was made to reduce the noise on the analog components (here it is the two gyros, a quite critical part). Finally at the four sides we have the motors transistors. The power for the motors pass on the top and bottom of the part of PCB that hold the motors. It can be noted that we also have the battery charging chip just at the right of the 3.3V regulators. It is a classical MAX1555 and is working pretty well. The idea with the step-up was to get a more stable voltage when the battery is depleted and also to remove some of the noise coming from the motor electonic. Anyway, this boars is capable to work without by using 2.8V linear regulators instead. So most likely the step-up will be excluded on the next version and we also plan to integrate the radio on board. The motors and propellers are taken from a Silverlit X-twin plane. They are powered by the battery voltage.
  • The copter is controlled via a python program running on the PC. A Playstation bluetooth gamepad is used to pilote it.
Jac Londe

Tesla (unit) - Wikipedia, the free encyclopedia - 0 views

  • A particle carrying a charge of 1 coulomb and passing through a magnetic field of 1 tesla at a speed of 1 meter per second perpendicular to said field experiences a force of 1 newton, according to the Lorentz force law. As an SI derived unit, the tesla can also be expressed as (in SI base units).[3] Units used: A = ampere C = coulomb kg = kilogram m = meter N = newton s = second T = tesla V = volt Wb = weber [edit] Electric vs Magnetic Field
  • The difference between magnetic field strength (in tesla) vs electric field strength can be confusing.[citation needed] The difference is that a force of magnetic field on a charged particle is generally due to the charged particle's movement[4] while the force imparted by an electric field on a charged particle is not due to the charged particle's movement. This can be seen by looking at the units for each. Electric field is N/C, while magnetic field (in tesla) can be written as N/(C*m/s). The difference between the two is m/s, or velocity. This can further be seen by noting that whether a field is magnetic or electric is dependent on one's relativistic reference frame (that is: one's velocity relative to the field).[5][6] In ferromagnets the movement creating the magnetic field is the electron spin[7] (and to a lesser extent electron orbital angular momentum). In current carrying wire (electromagnets) the movement is due to electrons moving through the wire (whether the wire's straight or circular).
Jac Londe

Scripting News: WikiLeaks on the run - 0 views

  • ikiLeaks says you can find them through wikileaks.ch, which redirects to a dotted ID. People exchange this information on Twitter. So in a weird sneaker-net sort of way we have implemented a human DNS.
  • All the while there's a huge glaring 800-pound-gorilla elephant-in-the-room size contradiction. The pols say that businesses can't support WikiLeaks, but the Guardian and the NY Times and the newspapers in Pakistan, Indonesia, Israel -- all over the world -- they're businesses too. So if they're really serious about this, we're in First Amendment territory. They ought to be careful, because the politicians depend on these businesses to sell their product. Without them, they have no way to lie to us.   See the problem isn't that WikiLeaks is lying, the problem is that they're telling the truth. This is not business as usual. 
  • It seems to me that at the end of this chain is BitTorrent. That when WikiLeaks wants to publish the next archive, they can get their best practice from eztv.it, and have 20 people scattered around the globe at the ends of various big pipes ready to seed it. Once the distribution is underway the only way to shut it down will be to shut down the Internet itself.
Jac Londe

Intel Developing Home Energy Management Concept Gadget - 0 views

  •  
    Chip company Intel (s INTC) is looking closely at the edges of the smart grid network -- or the edgy ...
Jac Londe

gkaindl.com → software → arduino ethernet - 0 views

  • Arduino Ethernet is a collection of libraries I have written to use within the Arduino programming environment in conjunction with the Ethernet shield. While the individual libraries are downloaded within a single archive, they do not depend on each other (unless noted otherwise) and can be used independently. The libraries are published under the GPLv2 (or, at your discretion, any later version). Individual libraries EthernetBonjour | Documentation EthernetDHCP | Documentation EthernetDNS | Documentation Also, by popular demand, I've prepared a very simple demo sketch using DNS, DHCP and Bonjour together. Basically, it gets network configuration data via DHCP, then lets you resolve DNS names via the DNS server received from DHCP, all while announcing its DHCP-assigned IP address via link-local Bonjour — Basically a combination of examples from the individual libraries, which I also recommend to look at, as they contain lots of comments explaining how stuff works.
Jac Londe

Internet Archive: Wayback Machine - 0 views

  • Browse through over 150 billion web pages archived from 1996 to a few months ago. To start surfing the Wayback, type in the web address of a site or page where you would like to start, and press enter. Then select from the archived dates available. The resulting pages point to other archived pages at as close a date as possible. Keyword searching is not currently supported.
Jac Londe

Network Cameras Solutions| DLink - 1 views

  • NEW - The DCS-930L Wireless N Network Camera
  • Simply connect the cables, plug in the camera, run the short installation wizard and setup is complete. To view what the camera is seeing, simply log on to mydlink.com, choose your device, and start viewing - there is no need to configure your router to open up ports or remember hard-to-memorize Internet addresses.
  • Easily View and Manage Your Camera from mydlink.com Sleek and compact design that fits in the smallest corners of your home Wireless Connectivity Ready to Use in 3 Simple Steps Works with the mydlink iPhone app for on-the go viewing
Jac Londe

Grundig G2 Reporter | The Eton Webstore - 0 views

  • Grundig G2 Reporter
  • AM-FM-SW-Radio/Recorder Features Digital AM/FM/SW radio with Signal Strength Indicator 248-station Memory Storage 5 Tuning Methods: Jog Tuning, Manual, Auto Tuning, Memory, ATS (Auto Tuning Storage) MP3 and WMA Decode and Recording, E-Book TXT Support Dual Stereo Speakers with Digital Volume Control Record Functions: MIC Record, Line-in Record, Record Radio (able to record while playing) Sleep Timer and Alarm Clock Functions Multiple Language Selection Built-in Flash Memory (4GB) Built-in micro-SD Card Reader (supports up to 16GB) Upgradable Firmware Ports: 3.5mm headphone output, Line-In, MIC, MINI-USB 2.0 Jack (High Speed) Rechargeable Lithium Battery (1250mAh), Charge Through USB Dimensions: 7½" W x 3½" H x 0.8" D (190 x 90 x 21 mm) Weight: 9.6 oz. (272 g)
Jac Londe

NFC Antennas - 1 views

  • So NFC is just a method of communication between two devices at short distance. What makes the NFC antenna design simple or easy? If you know much about antennas, the first question you might ask is what is the operating frequency of NFC. It turns out that these devices operate around 13.56 MHz. The corresponding wavelength is 22 meters long - this means to get a nice half-wave dipole antenna (that radiates well) we would need a device about 11 meters in length.
  • he NFC antenna area may be limited to 3"x1" (or 7 cm * 2.5 cm). Hence, we are talking about fitting an antenna i
  • to a volume where the maximum linear dimension is about 0.5% or less of a wavelength. And from antenna theo
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  • y, we know that you won't get any radiation out of such a small device.
  •  
    Longueur d'onde précise.
Jac Londe

Weber (unit) - Wikipedia, the free encyclopedia - 0 views

  • Weber (unit) From Wikipedia, the free encyclopedia Jump to: navigation, search In physics, the weber (symbol: Wb;  /ˈveɪbər/, /ˈwɛbər/, or /ˈwiːbər/) is the SI unit of magnetic flux. A flux density of one Wb/m2 (one weber per square meter) is one tesla. The weber is named for the German physicist Wilhelm Eduard Weber (1804–1891). [edit] Definition
  • The weber may be defined in terms of Faraday's law, which relates a changing magnetic flux through a loop to the electric field around the loop. A change in flux of one weber per second will induce an electromotive force of one volt (produce an electric potential difference of one volt across two open-circuited terminals). Officially,
  • Weber (unit of magnetic flux) — The weber is the magnetic flux which, linking a circuit of one turn, would produce in it an electromotive force of 1 volt if it were reduced to zero at a uniform rate in 1 second.[1]
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  • In SI base units, the dimensions of the weber are (kg·m2)/(s2·A). The weber is commonly expressed in terms of other derived units as the Tesla-square meter (T·m2), volt-seconds (V·s), or joules per ampere (J/A). 1 Wb = 1 V·s = 1 T·m2 = 1 J/A = 108 Mx (maxwells).
Jac Londe

Metre - Wikipedia, the free encyclopedia - 0 views

  • Metre From Wikipedia, the free encyclopedia   (Redirected from Meter) Jump to: navigation, search This article is about the unit of length. For other uses of "metre" or "meter", see meter (disambiguation). 1 metre = SI units 100 cm 1000 mm US customary / Imperial units 3.2808 ft 39.370 in The metre (meter in the US), symbol m, is the base unit of length in the International System of Units (SI). Originally intended to be one ten-millionth of the distance from the Earth's equator to the North Pole (at sea level), its definition has been periodically refined to reflect growing knowledge of metrology. Since 1983, it has been defined as "the length of the path travelled by light in vacuum during a time interval of 1 ⁄ 299,792,458 of a second.[1]
Jac Londe

3D Printing with Sculptris : Ponoko Community Hub - 0 views

  • 3D Printing with Sculptris
  • Sculptris is a supercool free sculpting tool. You can download it here from Pixologic. Much like ZBrush, Sculptris is a solid-body sculpting tool. Since it has an export function, we can use it for 3D printing too! Unfortunately at this stage we don't yet support OBJ files, so there's a couple of easy hoops you need to jump through to get your design ready. First export your sculpt as an OBJ file:
Jac Londe

The Day After Roswell - 0 views

  • by Philip J. Corso
  • Contents Forward Introduction Chapter 01 - The Roswell Desert Chapter 02 - Convoy to Fort Riley Chapter 03 - The Roswell Artifacts Chapter 04 - Inside the Pentagon at the Foreign Technology Desk Chapter 05 - The Cover-up Chapter 06 - The Strategy Chapter 07 - The EBE Chapter 08 - The Project Gets Under Way Chapter 09 - The Project Had Officially Begun Chapter 10 - The U2 Program and Project Corona - Spies in Space Chapter 11 - Project Moon Base Chapter 12 - The Integrated Circuit Chip - From the Roswell Crash Site to Silicon Valley Chapter 13 - The Laser Chapter 14 - The Antimissile Missile Project Chapter 15 - My Last Year in R&D - The Hoover Files, Fiber Optics, Supertenacity, and Other Artifacts Chapter 16 - 'Tesla’s Death Ray' and the Accelerated Particle Beam Weapon Chapter 17 - Star Wars Afterword
Jac Londe

Japan collab transmits record data speeds on terahertz waves - 0 views

  • Japan collab transmits record data speeds on terahertz waves
  • Researchers from Japan-based semiconductor manufacturer Rohm, together with a team from Osaka University, have come up with a chip that, in experiments, has achieved a wireless data transmission speed of 1.5 gigabits per second. This is a record breaker as the world's first terahertz wireless communication achieved with a small semiconductor device. The chip’s ability to transmit at such a quick speed is not the end of the story. Even higher transmission speeds of up to 30 Gbps may be possible in the future, according to reports.
  • “Research into terahertz technology utilising Terahertz frequency (100GHz-10THz) is now receiving increasing attention around the world,” according to an Osaka University publication
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  • One limitation on terahertz equipment has said to be its suitability only for indoor applications due to its vulnerability to interference from the atmosphere.
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