Tuesday, September 30, 2014
FARADAY CAGE
A Faraday cage or Faraday shield is an enclosure formed by conducting material or by a mesh of such material. Such an enclosure blocks external static and non-static electric fields
by channeling electricity through the mesh, providing constant voltage
on all sides of the enclosure. Since the difference in voltage is the
measure of electrical potential, no current flows through the space.
Faraday cages are named after the English scientist Michael Faraday, who invented them in 1836. http://TheWeeklyJob.com/?id=202498
A Faraday cage operates because an external static electrical field causes the electric charges within the cage's conducting material to be distributed such that they cancel the field's effect in the cage's interior. This phenomenon is used, for example, to protect electronic equipment from lightning strikes and electrostatic discharges.
Faraday cages cannot block static or slowly varying magnetic fields, such as the Earth's magnetic field (a compass will still work inside). To a large degree, though, they shield the interior from external electromagnetic radiation if the conductor is thick enough and any holes are significantly smaller than the wavelength of the radiation. For example, certain computer forensic test procedures of electronic systems that require an environment free of electromagnetic interference can be carried out within a screen room. These rooms are spaces that are completely enclosed by one or more layers of a fine metal mesh or perforated sheet metal. The metal layers are grounded to dissipate any electric currents generated from external or internal electromagnetic fields, and thus they block a large amount of the electromagnetic interference.
The reception or transmission of radio waves, a form of electromagnetic radiation, to or from an antenna within a Faraday cage is heavily attenuated or blocked by the cage.
A Faraday cage operates because an external static electrical field causes the electric charges within the cage's conducting material to be distributed such that they cancel the field's effect in the cage's interior. This phenomenon is used, for example, to protect electronic equipment from lightning strikes and electrostatic discharges.
Faraday cages cannot block static or slowly varying magnetic fields, such as the Earth's magnetic field (a compass will still work inside). To a large degree, though, they shield the interior from external electromagnetic radiation if the conductor is thick enough and any holes are significantly smaller than the wavelength of the radiation. For example, certain computer forensic test procedures of electronic systems that require an environment free of electromagnetic interference can be carried out within a screen room. These rooms are spaces that are completely enclosed by one or more layers of a fine metal mesh or perforated sheet metal. The metal layers are grounded to dissipate any electric currents generated from external or internal electromagnetic fields, and thus they block a large amount of the electromagnetic interference.
The reception or transmission of radio waves, a form of electromagnetic radiation, to or from an antenna within a Faraday cage is heavily attenuated or blocked by the cage.
Monday, September 29, 2014
ANDROID 6.0
Display
The measurement of the smartphone’s diagonal display or screen area. Phones with screen sizes of 5 inches or larger are considered phablets.
Screen Size
Pixels per square inch (PPI) of a phone's display. The higher, the better the image quality will be on the phone's screen.
Pixel Density | ||||
| Screen Resolution | 854 x 480 pixels | |||
| Display Technology | TFT | |||
Display Features
|
| |||
Display
The Galaxy V has a 4 inch TFT screen, making it one of the smaller smartphone screens.
|
Battery Life
The battery capacity measured in milliAmp hours (mAh). Battery capacity is far and away the most reliable measurement of smartphone battery life.
Battery Capacity | |
| Battery Technology |
Li Ion
|
Battery Life
|
Dimensions and Design
In general, the thinner, the better.
Phone Depth
Weight. For most people, the lighter the smartphone, the better. Keep in mind that weight is often directly proportional to screen size, so larger screen size phones will simply weigh more than smaller phones.
Weight | |
| Dimensions | 121.2 mm x 62.7 mm x 10.65 mm |
Dimensions and Design
The phone's body is 121.2 mm high, 62.7 mm wide, and has a depth of 10.65 mm, 6.5% thicker than an average smartphone.
With a weight of 80 grams, it's the first lightest smartphone.
The phone uses a touch screen keypad to capture user input, which is standard on most modern smartphones.
|
CPU & RAM
The smartphone's processor speed measured in GHz.
CPU Speed
RAM
| |
Processor Cores
| Single Core |
Processor and Memory
The Galaxy V houses a single core processor. Its CPU runs at 1.2 GHz
512 MB of RAM means that it has below average RAM than an average smartphone, which will hinder overall phone performance.
|
Camera
The image resolution, which is measured in megapixels, of a smartphone's rear camera. The more megapixels, the higher resolution the images produced will be. Megapixels do not, however, equate to image quality. There are a number of other factors.
Rear Camera Quality
The image resolution--measured in megapixels--of a smartphone's front camera.
Front Camera Quality | ||||
Max Video Resolution
|
VGA
| |||
Camera Options
|
| |||
Camera
It has a 0.3 megapixel front camera and a 3 megapixel primary (rear) camera.
|
Storage
Internal Storage
Card Storage (max)
| |
| Removable Memory | microSD |
Storage
The base model of the Galaxy V offers 4 GB of internal storage, making it an OK choice to store video, music, and pictures.
If 4 GB isn't enough, you can expand its storage by up to 32 GB via microSD.
|
Connectivity
Wireless Connectivity
| Compare by Wireless Connectivity | ||
Bluetooth Version
|
4.0
| ||
Sensors
|
| ||
| Interfaces | microUSB | ||
Charging Connection
| microUSB | ||
Headphone Connection
| 3.5mm |
Networks
| Networks |
| ||||
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EARN EASILY
Wednesday, September 24, 2014
WHAT IS THE DIFFERENCE?
We all knew it was coming, but now it’s finally official. Apple
has released the iPhone 6 and it’s pretty much the biggest change to the
product that the Cupertino based company has given us since the first
iPhone was released way back in 2007. But, it’s not just one iPhone, oh
no. There’s two - the iPhone 6 and the iPhone 6 Plus. Stay tuned for a
hands-on review, which will be coming shortly.
To
see how the iPhone 6 Plus, which boasts a 5.5-inch display, compares to
Samsung’s Galaxy Note 4, check out our head to head or read on to see
if you should upgrade from the iPhone 5s to the iPhone 6.
|
Friday, August 22, 2014
The Top 7 Technology Trends Dominating 2014
In my original post, I speculated that we may see the launch of Apple’s much-anticipated iTV as early as summer 2014. Although there has been no official word from Apple on this product, many experts believe it’s only a matter of time before Apple makes the move into the Smart TV market.
In an interview with his biographer, Steve Jobs was quoted as saying he finally “cracked the code” for breaking into the TV market; and this is perhaps where rumors of the so-called iTV originated. He said, “I’d like to create an integrated television set that is completely easy to use. It would be seamlessly synced with all of your devices and with iCloud. No longer would users have to fiddle with complex remotes for DVD players and cable channels. It will have the simplest use interface you could imagine.”
Many are now speculating, however, that this new product will be a seriously upgraded version of Apple TV, rather than a stand-alone smart TV. In fact, when biographer Walter Isaacson was asked (after Jobs’ passing) how close Apple was to developing a smart TV, he replied, “They weren’t close at all. He told me it was very theoretical. These were theoretical things they were thinking about in the future.”
In any case, smart TVs continue to dominate the marketplace. According to recent research by Parks Associates, smart TV sales show no sign of slowing down; in fact, according to the report, over 1/3 of American broadband households now own a smart TV, and nearly two-thirds of people shopping for a flat-panel TV in 2014 are purchasing smart. They also found that among smart TV sales, Samsung is leading the pack.
2. Smart watches will become ‘smarter’
The concept of smart watches still appears to be one on which people are highly divided. According to research by News Republic, consumers worldwide appear to be split evenly when it comes to the desire to wear one (although respondents from Spain came in highest with 7 out of every 10 being pro-smart watch).
Earlier this year, Google got in on the smart watch game by announcing its foray into wearable technology, which they’ve named ‘Android Wear’. The software, a completely mobile version of Android’s operating system, will be incorporated into smart watches which will be offered by various big brands.
The watches (which are currently only available to the public by pre-order) will allow users access via voice control (“OK Google”), along with all the features you’d expect, like email and text. Health and fitness features are also incorporated; these will be particularly useful for watches with built-in pedometers and heart rate monitors.
Apple is also rumored to be on the brink of announcing its “iWatch,” a smart watch which will run iOS and facilitate phone calls, email, Internet browsing, and texting. Rumors are that it will also be voice-controlled, and may be announced in early September 2014.
3. Google Glass will still be in “wait and see” mode
As predicted, Google Glass still hasn’t hit the market, although it’s expected you should be able to pick up a the smart glass sometime later this year or early in 2015. Opinions are still split on whether the technology will ever be truly useful and adopted into the mainstream. Up until now, the glasses have only been available to product testers at a cost of around $1,500 per unit. According to Google, the price tag will be lower once it’s released to the general public.
Google isn’t the only one with the smart glass technology, however; it has been rumored that Samsung will be releasing its own version – known as ‘Gear Glass’ – as early as this September.
4. Other applications and uses for Apple’s TouchID will emerge
In my previous article, I predicted that Apple’s TouchID technology would expand access so it could be used in other products – not just the iPhone. At WWDC2014, Apple’s Developers Conference, it was announced that TouchID technology would be available to all developers.
AgileBits (developer of the popular 1Password app) is already taking advantage of this by using TouchID to allow users to unlock the app, as well as to log in to third party apps. This feature will be part of its update for iOS 8. Of course, we’ll have to wait a couple months to access these features, as the release of iOS8 is currently only available in beta to developers.
5. Xbox One and PS4 will blur the lines between entertainment and video gaming
Sales of the Xbox One and PS4 continue to grow, especially since Microsoft lowered the price of the Xbox One to match the price of the PS4. While some originally criticized the fact that the Xbox One would need to have a constant Internet connection to function, this turned out not to be the case when Microsoft rescinded that requirement.
Rather than the simple gaming systems of yesteryear, these offer so much more: Voice control, program guide, universal remote, and an emphasis on social game play. These features contribute to making these systems the complete home entertainment hub many had predicted. According to Brittney Brombacher, video game journalist and expert from BlondeNerd.com, “I’m seeing families buying Xbox One and PS4 and using them not only for playing family games, but also to provide entertainment for family nights in general. Kids, moms, and grandmas alike can enjoy these systems for much more than just video games. These systems are definitely ringing in a new generation of entertainment.”
6. 3D Printing will begin to revolutionize production
I predicted that the rise in popularity, along with the drop in pricing of 3D printers would move product production closer to home. The recent opening of retail store Normal shows just how on point this prediction was. The company, which produces custom 3D printed earphones, will allow consumers to upload pictures of their ears (or have pictures taken in-store), and then receive custom-fitted earphones within 48 hours.
It’s not only retailers who are utilizing the technology, however: since the debut of the world’s first 3D food printer, the US Army is in the initial stages of making plans to use the technology for producing food for its troops. 3D food printers are already being used overseas to print food for the residents of retirement communities: printing food that looks and tastes like food, but has the consistency of puree and thus decreases the choking risk.
Amazing stuff!
7. The movement toward natural language search will make search more accurate and intuitive
I predicted last year that spoken, natural language search – such as ‘Where’s the closest café’ – would continue to overtake keyword-based, typed searches like ‘café Seattle’.
However, according to Google’s director of engineering, Ray Kurzweil, we are only seeing the beginning of how computers (and Google) will eventually see and understand content: “[M]y project is ultimately to base search on really understanding what the language means. When you write an article you’re not creating an interesting collection of words. You have something to say and Google is devoted to intelligently organising and processing the world’s information..
Friday, August 8, 2014
Gadgets and News....
1. Saucony Kinvara 5
The Saucony Kinvara 5 backs up its unique styling with a mono-filament mesh that keeps your feet from getting too hot. Enhancements to the EVA+ material helps minimise friction, while the RunDry inner lining combats pesky chafing. Pretty light, too, at 218g.£105 | Saucony
From Nike and Saucony, to Salomon and Asics, with so many brands and styles to choose from, finding the perfect pair for your running style can be a challenge. It's vital that you work out what's best for you.
How to buy the right running shoes?
Here are three tips from T3's Editor-in-chief and resident ultra runner, Kieran Alger, to help you whittle down your options:
1. Get your gait tested
Drop into a shop like Sweatshop.co.uk or Vivobarefoot stores and you can get a full gait analysis test done that'll help you identify the type of running shoes and support that's best for your style. You'll also get some handy hints on how to improve your technique along the way.
2. Think about your terrain
Where you plan to run is important. Will you be doing most of your miles on or off road.... visit http://www.t3.com/features/best-running-shoes for the complete info
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