Author: Swadesh Parasher

  • Disney Innovates Finger-Powered Energy Harvesting Technology!

    Disney Innovates Finger-Powered Energy Harvesting Technology!

    Disney researchers have successfully furnished an energy harvesting mechanism that can effectively generate electric currents by simply finger-tapping a paper or plastic surface which are strong enough to light up LEDs or trigger actions within games.

    The device uses a paper generator which has a thin, flexible sheet of polymer Teflon placed carefully between two conductive layers of metallized polyester which serves the purpose of electrodes. When the paper is rubbed against the Teflon sheet, electrical charge accumulates on it. Then, on moving the electrodes relative to each other, a tiny alternating current is generated. This current could then be used to light up LEDs, E-ink displays, sound buzzers and also some infrared communication devices.

    The idea for this technology evolved when Interaction Designer Mr. Ivan Poupyrev collaborated with Mr. Mustafa Emre Karagozler, an electrical engineer.

    “We were discussing about new ways of harvesting energy and then thought that, it would be cool to collect the electrostatic charge from rubbing materials” Poupyrev said in an interview.

    The system relies entirely on electrets which are nothing but the electrostatic equivalent of permanent magnets, which carries the electric charge. Polytetrafluoroethylene(PTFE), popularly known as Teflon and quartz are examples of electrets. These electrets are already a part of microphones and MEMS devices.

    Researchers have practically demonstarted how to use electrets in order to convert finger-tapping into power to LEDs using much expensive microfabricated structures. However, the modern day researchers at Disney have come up with a way that enables us to do the same but in a much feasible way.

    Disney 03

    The technology would help in designing books and posters that would look attractive and more interactive and this all would be done without the use of batteries. No issue of low battery..! It produces a feeble current but has a high voltage range on the scale of 1,000 volts which can trigger e-ink paper displays easily.

    Disney has given a few demonstrations of the technology, like an e-ink face of a cat astronaut could be revealed by just rubbing a button on a piece of Teflon material. Another example pits two people against each other to tap fast enough to turn on an LED first. The energy can also be used to trigger a buzzer sound by storing the charge in a capacitor when sufficient power is generated. Similarly, it can be used to send an infrared signal to trigger actions by a computer.

    The team at Disney is still working to improve the technology. There’s a lot of optimisation that could be done inorder to make the system more efficient and acceptable. Significantly, the tiny amounts of power collected should be stepped up to the extent that it could charge a smartwatch or a simple e-ink reader.

    Earlier, researchers at Disney even developed a microphone that lets a user record a voice message and then relays that message to another person simply by touching it with a finger.

    Well, no doubt its an era of science and technology. I’m just looking forward to new technologies like this that could wonder struck me. Hmmm…I’m impressed Mr. Poupyrev and Mr. Electrical Engineer..! 😉

  • [How To] trace the IP address of a website

    [How To] trace the IP address of a website

    Usually, You certainly don’t want to know the hidden IP address of a website, because it is too difficult to remember the long numeric address which leads to the information you sought on the internet. However, there are few cases where IP address of a website plays a crucial role.

    For instance, if due to some reason website’s DNS server is unable to link the IP address to the domain name, you cannot reach the website without knowing the IP address or,

    if you are migrating your website to the new web server and updated the nameserver for the same, you might not be able to see files until your DNS information has been propagated globally. To access the data on the new server temporarily you’ll have to use the IP address to make sure your website is working properly and files has been migrated as they should.

    Whatever is the case, we are here to help you determine the IP address of the website you want to gain access to — just follow the simple tutorial below.

     

    Instructions:

    1Simple “tracert” command

    z 00076z 004If you’re using a windows OS powered computer, you can simply perform a “tracert” in the command prompt. traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. I prefer “tracert” or “traceroute” to detect the IP address over “ping” command because it provide more detailed information and I like the way the information is displayed on the command prompt/terminal window.

    • Press Window+R > type “cmd” > Enter
    • In the Command prompt type – “tracert -h 10 digitfreak.com” or “traceroute -m 10 digitfreak.com” on linux system (without quotes and replace digitfreak.com with the domain address you want to look up).
    • The first IP adress displayed beside the domain name is the one you need.

     

    2Web application

    z 00077If you are not into all that do not rely on others thing, you would probably like to stick with the third party services. There are plenty of IP lookup services that is capable of performing the job we are seeking. It’s upto your personal taste to select one of the web services that you personally think is best suitable for your interest. Personally, I like who.is domain lookup website.

    • Just Go To > www.who.is
    • Enter the name of the website you want to search.
    • The search result will return the detailed information of the website, including whois lookup, website information, DNS records and diagnostics.
    • Don’t get distracted. We are looking for the IP address and you can find it under the “site status” block (see screenshot below)

    z 00078

    There are certainly many different ways to determine the IP address of a website, but we only need to get our work done and neglect the other detailed information or methods that can give the similar results.

    If you have other favorite method to trace the IP address of the website, simply mention it in comments. Maybe we will include it in this article.

  • 5 Apps that has been redesigned to use Apple’s new 64-bit processor

    5 Apps that has been redesigned to use Apple’s new 64-bit processor

    Apple released the new iDevice few days ago, and it does power some unique technology that could be sought to the mainstream cautiously by Apple once again. The new iPhone 5S is packed with two amazing features – “fingerprint ID scanner” and world’s first “64-bit A7 CPU” on the smartphone.

    While most of the people won’t see any visible benefits of the new CPU, but it can certainly improve the performance by distributing the application thresholds efficiently. There is only a handful of applications that benefits from the 64-bit architecture of the processor.

    See Also: Apple announced iPhone 5S, Is it better than iPhone 5? [Specs]

    Apple is pretty confident about the performance of their new CPU which is complemented with their new M7 sensor — together performs all the magic we see on the iPhone. Apparently we got to know that Apple’s A7 64-bit processor was actually manufactured by the furious rival “Samsung”.

    See Also: Apple A7 64bit chip was actually built by Samsung

    The new iPhone 5S features cortex A7 64-bit chip, which is claimed to be twice as fast as the previous generation of the gadget. Apple attached a new sensor to the device – “motion coprocessor,” that determines whether the owner of the device is stationary or in motion (like walking, driving, sprinting etc.), which could be very useful for the app developers.

    So, which of the top apps really benefited from the Apple’s new CPU? We have a small list of random ones here:

     

    1. Infinity Blade III ($4.99)

    infinite blade iiiInfinity Blade III is one of the most loved games on the iPhone, and the latest release looks incredible on an iPhone 5S. The game now has full-screen anti-aliasing, full-screen vignettes, high-resolution shadows, and environmental reflections. The developers made a few other improvements to cut down on loading times, too.

     

    2. 123D creature show

    123dWith 123D Creature Show, also made by graphics powerhouse Autodesk, you can take 3D models of, well, various creatures and pose them on top of your own photos. The app uses the A7 processor as if it were a chip inside a full desktop workstation rather than a mobile phone to pull off some pretty complex posing and deformation calculations.

     

    3. Total Conquest

    total conquestGameloft’s Total Conquest is a social strategy game about the Roman Empire, and it’s been updated to make use of the 64-bit power of the A7 for graphics. A fire effect in battle mode has been enhanced, for example, and you’ll find some animated semi-transparent clouds that you can move through as you zoom in and out.

     

    4. Pixlr Express Plus

    pixlrCount on Autodesk (known for its professional-grade software applications in design and graphic arts) to make use of the A7 processor with an image editing app. Pixlr Express Plus lets you edit images right on your phone but with tools that make the experience comparable to using a desktop application. The number of editing tools is remarkable, and the precision with which they work is astounding. There are simple buttons for whitening teeth and removing red-eye, but the most exciting ones can balance colours or lighter areas of an image that were cast in shadow. Very cool.

     

    5. djay 2 for iPhone ($1.99)

    djayThe next generation of the world’s best-selling iOS DJ software and winner of the Apple Design Award has been redesigned from the ground up to match the iPhone 5S standards. The app has been optimized for the new A7 processor on iPhone 5S, fully leveraging the new 64-bit architecture.

  • 5 things you should do to improve your iOS7’s battery life

    5 things you should do to improve your iOS7’s battery life

    Apple’s new iOS 7 was released publicly few weeks ago, but it has been a tremendous pain if we count it in the discussion of battery performance.

    There’s no doubt iOS 7 is an amazing improvement over its predecessors by offering fabulous features and crazy new options to interact with the device. New gesture based techniques and wireless data transfer mechanism keep us stunned every time we use them.

    No matter how much if hate it for few things that went wrong, you still don’t want to go back to the same old chunky, fat and boring OS that has been exactly the same since the beginning.

    See Also: 5 things about iOS7 that you’ll hate and how to fix them

    So, what actually making the iOS 7 ‘wanna’ go back to the iOS 6.1? You guessed it! As discovered by Ars Technica, iOS 7 kills battery life faster than iOS 6.1 on every device you can use it on. Here are some tips to keep you happy.

     

    1. Turn Off Parallax and motion

    Do you love your new iOS 7 right? It got all those funky moves and 3D user interface that gives you a new feel and for the first time a new environment to work upon. But, these effects and animations sucks juice from your battery. We don’t actually need to turn it off completely, but you can reduce the effects to minimize the parallax usage.

    Go To Settings > General > Accessibility > Toggle Reduce Motion.

    It will stop the parallax effect, and you will notice some minor battery improvements.

    If you have noticed, the new moving backgrounds that iOS 7 offers are super cool, but they will totally kill your battery. To change your iPhone’s wallpaper, just

    Go to Settings > then Wallpapers & Brightness. Try out one of the beautiful new static wallpapers or use a photo of your own.

     

    2. Tell iOS 7 exactly what to index for spotlight

    ios7 spotlightiOS 7 enables users to search for anything from the home screen of your phone, with the new gesture-enabled “spotlight” feature. As the name suggests, the spotlight can help you search pretty much every part of your phone, from notes to music, to mail by simply activating it from the pull-down gesture on your home screen. Convenient right? but, it sucks battery because searching and indexing data requires high processing power, and thus reducing the battery juice.

    So, what really you can do to minimize this? Fortunately, you can change exactly what Spotlight looks in when you use it for search.

    Go to Settings > General > Spotlight Search

    You can specify what you want to index and search for.

     

    3.Turn Off Bluetooth, Airdrop and WiFi whenever not in use

    iphone 5 ios7 control centerIt is a general suggestion to turn off your Bluetooth, WiFi, and other non-frequent mobile modules to save some battery juice. You can keep these features turned off when not in use – and yes, you can live with it.

    iOS 7 also introduced a new Airdrop feature that allows you to quickly and easily share files with your friends’ iPhone. This is only available for iPhone 5 and newer. It is a great feature, but you don’t need to keep it on when you’re not using it. It’s not like the girl sitting beside you in a public transport is going to share some awesome shots with you. Just, minimize the chances of sharing unwanted stuff and still keeping your phone battery up to the par by simply turning it off when not in use.

    If you are a lazy one, Apple has introduced a new Control Center that you can activate by simply applying the “pull up” gesture from the bottom of your screen. It has most basic functions listed to be toggled, with ease.

     

    4.Turn you brightness down and disable Auto Downloads

    This is a classic way to save battery life, and it’s been made even easier with iOS 7. Instead of going through Settings to get to your brightness, you can change your screen’s brightness from the Control Center. Just pull up from the bottom of any screen.

    Your iPhone now downloads app updates from the App Store automatically, draining your battery. This feature also automatically downloads purchases from iTunes and the App Store you’ve made on different devices to your iPhone, which you may not want. To stop this and just update your apps and music manually:

    Go to Settings > iTunes & App Store > and scroll to Automatic Downloads. There you can turn Automatic Downloads off for music, apps and books.

     

    5. Turn Off Frequent Locations

    ios7 location servicesYour iOS 7 powered device now tracks your every move to “provide locations related information.” It might be useful for some, but I always prefer to minimize the tracking events by my digital devices. I am sure most of the DigitFreak followers believes the same.

    Tracking your device and location, drains the battery and yet it is not very much beneficial for you unless you are a sole traveler and are really keen to know your history of daily activities.

    Go to Settings > Privacy > then Location Services. There, scroll all the way to the bottom and hit System Services.

    There you can also turn off Location Based iAds (ads from Apple based on your frequent locations). Then go to Frequent Locations and turn that off, too.

  • Tired Of Poor Wi-Fi Speeds??..Lets switch to Li-Fi!

    Tired Of Poor Wi-Fi Speeds??..Lets switch to Li-Fi!

    Whether you’re using a wireless internet in a coffee shop, stealing it from the guy next door, or competing for bandwidth at a conference, you’ve probably gotten frustrated of the slow speeds you face when more than one device is tapped into the network. As the number of internet users increases day by day, their devices access wireless internet, clogging airwaves which are going to make it increasingly difficult to latch onto a reliable signal.

    But hold on a second, if we see carefully then, radio waves are just one part of the spectrum that can carry our data. What if we could use other waves to surf the internet??..Looking forward to this concept, Dr. Harald Haas, a German Physicist has come up with a solution that he names as “Data Through Illumination”.

    It aims at sending data through an LED bulb that varies in intensity much faster than what a normal human eye can follow. It’s the same idea behind infrared remote controls but is far more powerful.

    D-Light can produce data rates as faster as 10 megabits per second, which has a lot more speed than your average broadband connection – says, Haas.

    Dr. Haas envisions a future where data for laptops, smartphones, and tablets would be transmitted through the light in a room. And security would be just a snap — if you can’t see the light, you can’t access the data. Simple!

    Li-Fi is basically a VLC(Visible Light Communication) technology developed by a team of scientists including Dr. Gordon Povey, Prof. Harald Haas and Dr. Mostafa Afgani at the University of Edinburgh. At TED global Conference, Prof. Haas amazed people by streaming a high-definition video from a standard LED lamp.

    Visible light communication3

    “It is typically implemented using white LED light bulbs. These devices are normally used for illumination by applying a constant current through the LED. However, by fast and subtle variations of the current, the optical output can be made to vary at extremely high speeds. Unseen by the human eye, this variation is then used to carry high-speed data,” says Dr. Povey, Product Manager of the University of Edinburgh’s Li-Fi Program ‘D-Light Project’.

    In simple terms, Li-Fi can be thought of as a light-based Wi-Fi i.e. it uses light instead of radio waves to transmit information. And instead of Wi-Fi modems, Li-Fi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information. Since simple light bulbs are used, there can technically be any number of access points.

    It has already achieved blisteringly high speeds in the lab. Researchers at the Heinrich Hertz Institute in Berlin, Germany, have reached data rates of over 500 megabytes per second using a standard white-light LED. It is even capable of transmitting data at 100 MB/s – faster than most UK broadband connections.

    Thus, Visible Light Communication can potentially solve the problem of lack of spectrum space which could then be used for communication at very high speeds. Such advancements promise an efficient exchange of information among various people and organizations. This can definitely bring about a revolution in our internet experience.

    Well, I’m desperately looking forward to the day when I would be downloading at a speed of 100Mbps..! Excited..!

  • CyanogenMod 10.1.3 stable released, supports wide range of devices

    Cyanogen Team has released the final stable version of CyanogenMod 10.1 lineup. They has been testing the RC (release candidate) since a few weeks now.

    If you don’t like the customized android OS bundled by your Carrier or smart phone manufacturer, you can simply use the CyanogenMod to experience the smooth and lag free User Interface, which usually turns out to be best at performance.

    See Also: CyanogenMod started rolling out CM 10.1.3 RC1

    Cyanogen Team announced the final stable release version of android 4.2.X based Custom ROM, which fixes all the outstanding bugs and issues spotted on previous release candidates.

    Not only does 10.1.3 bring stability into your wild and crazy Android life, but it also introduces CM Account for remote wiping of lost devices amongst other nifty stuff. And while their once custom Android camera app Focal wont be making it into the stable release, you can still give it a download in the Google Play Store.

    See Also: CyanogenMod 10.2 nightly build started rolling out

    The team is focusing on the optimizing and development of their upcoming android 4.3 based CyanogenMod 10.2, while looking forward to the latest android 4.4 Kitkat in the future.