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Minggu, 04 Maret 2012

Transcend Jetflash USB 3.0


If it has anything to do with external memory has Transcend it. That is the reputation that this company has earned over years of excellence in terms of USB storage media. Therefore, it is no surprise that has the Transcend JetFlash ® series of flash drives that support the latest USB 3.0 standard developed.
Here are some of their most important features:
These new drives are available in various capacities: from 8 GBand 32 GB up to
They provide warp speeds of up to 70 MBps for reading data andwriting up to 20 MBps
While the write speeds are not much different than the high ofexternal hard drives with capacity, they are still significantly higherthan that of USB 2.0 flash drives
The JetFlash ® 700 drives work well with the standard USB 2.0 standard, so you can use it with your latest computer as well as the old one, without worrying about compatibility issues thought
In addition to their speed of these drives are manufactured by using ultrasonic welding, resulting in extremely high quality and fine joints and a very smooth surface
They are supplied with the JetFlash elite data management tool
They have an LED indicator that turns blue when they work with USB 3.0 configuration and orange, if they work with USB 2.0
To sum up, for little more than £ 15 you can get a sleek and rugged flash drive that not only supports USB 3.0 standard, but it also looks good.

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Sabtu, 03 Maret 2012

Speakers Sonic Gear Evo 5


When I was on vacation recently, my friend has borrowed my speakers. If you have a girlfriend, you know what that means. Well, anyway, I had toyed with the idea of ​​me to buy new, so why not the same. Well that was easier said than done.

So I threw a harmless look at different websites, but could not bring myself to actually make a decision. I liked (why not a couple of Bose I thought, for example) were then immediately astronomically expensive, the price fell in my frame was ugly as sin. I was stuck in a kind of dilemma. Wanted to spend a lot of money (could) I do not, a grotto-ugly pair of speakers to be placed on my desk but was much less.

The rescue took as so often on eBay. Since there are so well known, any shit. Quite by accident I saw also some speakers that are not only OK but also looked just fit into my budget. By the company but I had never heard of. My curiosity was piqued, especially since the name Sonic Gear really cool sounds ever.

It turned out that apparently only quite at the beginning in terms of global sales. They belong to Leapfroglobal Group and are based in Singapore. However, I did nothing. What I liked is their slogan: Trust Your Ears. I like to do this is online only slightly difficult, especially if you have no more speakers.

Well, after some hesitation, I ordered it from a dealer in the UK. It cost me the way some trouble finding a dealer who does not try to recoup the competitive price by exorbitant shipping costs again. At the end I found said shop, where the whole thing cost me 54 euros including shipping and just so I could just live like that.

At least the pictures looked neat from the speakers, which I then a few days later in his hands, was something completely different. The parts look worse in absolute terms and in real-I mean this in allerpostivsten sense of the word. They not only high, they feel good too that way. If I compare with the scrap, which is here in the stores, I can not believe some people do not buy Sonic Gear Evo 5th

The sound check confirmed my first impression: First class. The speakers deliver a rich sound in all areas. Meanwhile, I'm a friend grateful to the former speaker. I do not need extra mention that she was a little pissed when she saw my new acquisition. If they ever want to "borrow", but I know what I'm saying.NO WAY! These babies belong to me!

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Jumat, 02 Maret 2012

How to make a x-ray glasses


It is about the time of going to the beach and with that the best time to test the x-ray lenses. The materials left over to spend the IR and the naked eye can not see anything are synthetic fabrics such as lycra in dark colors.

The cameras with night vision, also called night shot, or have lux sensors. In particular if you want to buy a camera or filters of this type. Already on the market these cameras with night vision or to achieve the so-called effect of x-ray lenses. For example, the Kaya-optics company has been selling cameras and infrared night vision filters. But you can also achieve this effect in a home.

The presence of bright light is definitely an advantage. The wet clothes also favor the capture of IR to achieve the effect of X-rays see through clothing. The Easter holidays are definitely one of the best options. At the beach or pool, the opportunities are greater.

Keep in mind that as a rule, nobody likes to see through clothing. I advise you to do with consent. If not so, do the tests with responsibility and at your own risk. Here we are not responsible. Having said this, and all clear, good luck.

If you want to share your tests with x-ray lenses filter x-ray home we have built here, will be welcome. Already started a collection pequenia photos and videos with x-ray lenses. Will be available soon.
homemade night vision lenses

Putting a camera with night vision is simple. The first thing to do is measure the lens of the camera that we use. I recommend a standard digital camera. This filter also works for home phones with digital camera. So you can take pictures with x-ray videos with your phone. It is important to try several filters to achieve different effects with different types of light and sensitivity of your digital camera.That will depend on the quality of your photos.

The materials you need are:

Several negative, the dark after their disclosure.
The cardboard center of a diameter tape similar to a camera lens that you put the filter.
Glue
Insulating tape
Correct or scissors
Marker or black paint and brush.

First see if the digital camera (photographic or cell) captures infrared. For this take a picture in the darkness of some remote control directed toward the infrared diode while pressing any button.It is important not to activate the camera flash when taking this picture. If you can see in the photo diode, it means that if your camera sees infrared. We are on track.

Ring filter: Now to make this homemade infrared filter, you need to measure the outside diameter of the lens of your digital camera.That's where we will adapt the home infrared filter. One end of the ring should be partially covered, you can put a piece of black construction paper.
Filter: Cut the negative and dark revealed. Cut two of them and put them inside the filter ring. So that they are covered by black cardboard except for the area in front of the camera lens.
Once the filters are fixed on the rim of the filter and filter the entire home is painted black, place it on the camera lens. This type of filter home should pass only the infrared spectrum and only part of the visible light.

See through clothes
Interestingly, after starting this blog for several weeks, the way that people find this blog. The main idea of ​​this blog is to explore and learn how to achieve the effect called x-ray. We have explained that this effect is actually way to capture infrared filters adapted with video cameras, photo phones.

Most visitors have come to this blog and see sample photos in the first post on x-ray lenses. Many people are convinced of the effect of x-rays and the ability to see through clothing. In fact, hacinedo research for this blog, I check in several photography forums. Many users did not believe that you could see under your clothes with these filters. In fact, in several forums told me that see through clothing was just a story of the 80's.

However, since I made my first test with infrared filters on my phone.Result, it works but I need a good sunny day. I've only tested fabrics that I have put myself in front of my cell.

Most people come to this blog looking to see the underwear with x-ray glasses to see panties or lingerie under dresses or skirts. No you can literally stop people in their underwear and lingerie with a filter, simply, certain materials are transparent to infrared rays and others do not. With a filter, eliminating reflection or absence of these with a camera or cell phone, what remains is the material that did not absorb the rays. This is how we see beneath the clothes. Well to explain, you need several things, mainly the right filter and sufficient light, a good natural or artificial sunny day, with infrared diodes. You also need the focus is on certain types of materials, ie, artificial fabrics. Especially nylon or lycra. If clothing is wet, it works better.These are the most important factors to see through or under clothing.

It occurred to me as it would put it, rather than treating it as a secondary issue because most people who come to this blog as does asking to see under clothes. There have the answer, those are the important factors to achieve the effect of x-rays. If you have done or are trying, they can leave here your notes, tips and suggestions on this issue. They can share their photos and home experiments if they wish. Due to the success of sample photos, I will open a section of voluntary contributions.

Remember, if infrared filters are cheap, what remains is to experiment with your cell phone or camera to know the sensitivity of the filter, the type and intensity of light suitable. And practice.

X-ray cell phone

Most cell phones come with cameras. This gives them a great advantage is small and portable. With many phones can now be achieved very good pictures, in some, the quality of the lens and the resolution are very good.

Sunlight may be sufficient to reflect infrared rays to be filtered and captured by a simple cell phone can be enough to create the effect of x-rays. If you choose correctly the filter, you can use a cell phone camera to see through clothing.

We must learn to calibrate the light conditions with the sensitivity of infrared filter used, but once this is achieved, the effect of x rays with a cell phone is a reality. What to do to build or customize your cell phone to take pictures through the clothing is to have a camera phone with integrated ceullar buy a infrared filter. What are the best models of mobile? Again, a camera with good resolution and good lens helps more. Is achieved as an infrared filter? Now it's easy to find on the internet is easy to find in some stores. It is important to check the sensitivities of the filters first and you make sure that work with sunlight outdoors.

Once you have the filter, which should cost less than $ 20 if you succeed with distributors of photographic or optical equipment can be much cheaper. What you have to do is simple, put it in front of the lens cell phone and start making the tests. Remember that there are materials that work best to achieve the effect of x-rays see through clothing. Also the lighting conditions are important, for example, sometimes wet clothing works best. The distances and shadows are important so you have to work the angles from which to take photos. So there are advantages in using cell phones to take pictures on a sunny day at the beach for example.
As x-rays put my camera

The x-ray lenses (or x-ray glasses) and x-ray cameras that both have become fashionable, they are actually infrared.

Now sell infrared filters to bring them to the video cameras and see in the dark or see through clothing. What you have to do is find the measure of your lens and make sure your camera has night shot on video cameras sony. In other video cameras this option is known as 0 lux. For example, video cameras panasonic. Or the option on any other night vision video camera from any manufacturer.

There are also ways to do this with cameras but you have to adapt.To achieve the effect of x rays in cameras, infrared diodes must be put in the chamber. This is totally amateur and requires some knowledge. It easier to see through clothing to see with a camera, is saving for a video camera with nightshot, 0 lux and buy a infrared lens. You have to know how big is the camera lens before buying the filter. If you want to know what size is the lens of your camcorder, see specifications in front of the lens.
Infrared lenses come with different sensitivities, some work in the day, some other low light and at night. You have to practice and try different combinations. Infrared filters to x-ray cameras can be purchased. In fact, they are difficult to obtain. Many of the filters of this type are already in photographic format. Filters are like a lens that you put into your camera (such as telephoto or wide angle, only you need to know the steps to your camera before you buy). On the Internet there are several places to get these infrared filters. Many of these filters are not expensive, you can get on ebay for example.

Night vision lenses can be constructed in a home. Get or buy infrared filters is simple and easy. Infrared filters or PF are purchased online for between 15 and 20 dollars. The problem with making homemade x ray glasses is that the size and appearance will not be more beautiful than you've ever seen. At least the lenses that I have, hehe.

 I am also researching cell phones or filters to make the effect of x-ray cell phone. Here also is easy to achieve the desired effect with the necessary conditions. A sunny day, synthetic material and wet.Sound familiar? beach or pool.
You can see through clothes with x-ray glasses?
What are X-ray glasses?
X-ray lenses are special lenses that can see through certain types of clothing materials. Usually not very thick fabrics.

In truth there are X-ray glasses?
Yes, it is a fact. You can buy online but are a bit expensive. They can be found from 2.400 dollars online.

As a function of x-ray glasses?
They are not really X-rays that use this type of lenses. Are actually infrared. There are certain types of fabrics or synthetic materials that are transparent to such rays, and being reflected by the objects, the rays are detected by a spatial filter type (IR). Based on the figures captured by the filter can view images of the object that reflects them.

There are other alternatives?
Yes, recently took some video cameras such filters. They are known as video cameras with infrared mode (infra-red mode) or night vision. While such cameras are not made for this, also can work to see through thin clothing. For example swimsuits.

I can see examples of what can be done?
There is little information of this type but check the blog of x-ray lenses There is a link with sample pictures and a place where you can buy online.

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Kamis, 01 Maret 2012

How to save Laptop Battery


A battery has two essential characteristics, the voltage expressed in volts (V) and the amount of electricity expressed in Ampere-hours (Ah) or milliamp hours (mAh).
The battery power is calculated as follows: Voltage (V) x amount of electricity (Ah) = Energy (Wh)

Example: 19.5 V x 4400mAh = 85.8 Wh

Thus we speak of the capacity of energy instead of power.
What type of batteries used in laptops?

Currently, all batteries that come with laptops are made using Li-Ion technology. These are a type lithium battery in which lithium ion remains in state.
These batteries are expensive and that lithium is an expensive material. Its main advantage is the amount of energy we can store in a small volume.
Key Benefits

No memory effect or very low
Excellent amount of energy / volume due to the physical properties of lithium.
Self-discharge (natural discharge when the battery is not used) minimum.
Much safer in relation to the first lithium batteries (in the metallic state) through integrated electronic circuit.

The main drawbacks

The price, because of the complexity of manufacture and the material used (lithium)
Significant deterioration when the battery is discharged below 10% (can lose up to 20% capacity at once!).
Charging current limited because of its internal technology and the danger of lithium, so the load may seem slow.
Low temperature resistance: It is recommended to use at a temperature between 20 and 25 ° C, and must not exceed 40 ° C if it can be damaged. Never be achieved at elevated temperatures in the range of 75-80 ° C because they may explode.
Like all batteries they deteriorate over time and nothing can reverse this process.

ATTENTION:

The overall battery (batteries, lead acid batteries or lithium, etc.). Pollute the environment so it should never be thrown away. They should be recycled (in some countries will find in supermarkets and computer stores where you can leave them for recycling).
Never attempt to open a battery to repárala be burned or seriously intoxicated.
Increase the lifespan of the battery of a laptop

As stated above, changing battery is a real investment, the order of hundred euros usually is why it is better to know certain concepts and implement them to prolong their shelf life.

For example:
When you buy a battery the first thing to do (after seeing the power in W) is to see the date of manufacture: a battery loses its capacity from the moment it is made, therefore the more recent the datemanufacturing, the battery capacity will be very close to that listed on the label.
Prefer brands of batteries, especially not to buy discount batteries imported from China as they can be very dangerous because it probably had a very low quality control and even no quality control.So be careful as they can be dangerous!
Do not exceed the discharge current indicated by the battery manufacturer (eg: if listed 4400mAh then do not consume more than 4.4 A for one hour) and that can damage considerably. To be clear, it is advisable to use the battery to power other machines.
A very important point made earlier, never use it to below 10% load.In general the operating system puts the PC into standby when it is only 15% load. If you run the risk of losing 20% ​​of its capacity at once, personally lost 10% of the capacity of my battery trying to prove ...
Do not use the battery while charging. But not to worry, because when we recharge the battery power cable power divided: some will charge the battery and the other is used to operate the laptop, so the battery is not used during this time.
Fully recharge the battery without interruption when it is downloaded to the maximum (not below 10% but when the operating system puts the laptop on standby). This allows the battery to do a full discharge followed by a full charge, which can keep it. This is recommended 1 to 2 times per month.

Another important point is that it is necessary to remove the battery when the PC is connected to the mains, and we do not need just because all current laptops (or the same batteries) are equipped with electronic circuits that prevent using the battery and is charged when the laptop is connected to the mains.
Instead, always disconnect the power cord from a laptop when off, to avoid any unnecessary burden on micro-battery.

It seems that Sony stops charging the battery to 80% of its new laptops to limit wear. So if you look at this on a Sony laptop there is no reason to worry.

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Rabu, 29 Februari 2012

How the UPS Work


UPS

A UPS (Uninterruptible Power Supply), also known by its acronym in English UPS (Uninterruptible Power Supply 'uninterruptible power supply') and incorrectly generalized and not break, is a device through its battery can provide power after an outage to all attached devices. Another function of UPS is to improve the quality of the electricity that comes to equipment, filtering up and down and eliminating harmonic voltage network in the case of using AC. UPS provide electric power to equipment called critical loads, such as medical devices, industrial computer which, as stated earlier, have always required and that it be food quality because of the need to be operational at all times and without failure (spikes or brownouts).

Power

The power unit to set up a UPS is the voltiamperio (VA) or watts, apparent power which is also called effective or effective power consumed by the system. To calculate how much energy it takes your computer, search for consumption in the rear of the unit or the manual. If actual or effective power, in watts, multiply the number of watts by 1.4 to account for the maximum peak power that can reach your computer, for example: 200 watts x 1.4 = 280 VA. If you found is the nominal voltage and current to calculate the apparent power (VA) multiply the current (amps) by the voltage (volts), for example: 3 amps. x 220 Volts = 660 VA.

Type

DC UPS

Loads connected to the UPS require a DC power supply, therefore they will transform the alternating current to direct current commercial network and used to feed the load and store in their batteries. Therefore do not require converters between the batteries and loads.

AC UPS

These UPS obtained at its output an AC signal, so you need an inverter to convert the continuous signal coming from the batteries into an alternating signal.

2 - USB:

The Universal Serial Bus (Universal Serial Bus) or Universal Serial Driver (CUS), commonly abbreviated USB port is used to connect peripherals to a computer. It was created in 1996 by seven companies (which now form the board): IBM, Intel, Northern Telecom, Compaq, Microsoft, Digital Equipment Corporation and NEC. [1]

The design of USB had in mind to eliminate the need to purchase separate cards to put in the ISA or PCI bus ports, and improve plug-and-play allowing these devices to be connected or disconnected to the system without rebooting. However, in applications that require large bandwidth for data transfers, or if you need low latency PCI or PCIe buses wins. The same is true if the application requires industrial strength. In favor of the USB bus, note that when connecting a new device, the server lists and adds the necessary software for it to work (depending of course on the OS you're using the computer).


3-VESA:

VESA, Video Electronics Standards Association (Electronics Standards Association video) is an international association of electronics manufacturers. NEC was founded in the 80 twentieth century, with the initial goal of developing video screens with a joint resolution of 800x600 pixels. Since then VESA has other standards related to video capabilities of the IBM PC peripherals and compatible connectors, BIOS or frequency characteristics, transmission and synchronization of the image.

Main VESA standards:

* VESA Bus (VLB), previously used as a high-speed port for video (before the onset of the CPA)
* VESA BIOS Extensions (VBE), used to create a standard that soportase advanced video modes (high resolution and billions of colors).
* VESA Display Data Channel (DDC), which allows the monitors to identify themselves to graphics cards that are connected. However, the current form of identification is called EDID (Extended Display Identification Data).
* VESA Display Power Management Signaling, which allows the monitors to report that kind of power saving modes have.
* Digital Packet Video Link
* A series of patents for flat panel displays, video connectors and synchronization of digital video.

4-VGA:

The term Video Graphics Array (VGA) refers both to a standard analog computer display (VGA connector 15-pin D subminiature which was first marketed in 1988 by IBM), as resolution 640 × 480.While this resolution has been replaced in the computer market, is becoming popular again by mobile devices. VGA was the last graphical standard introduced by IBM that the majority of PC clone manufacturers conformed, so today (from 2007) the minimum that all graphics hardware supports before loading a specific device.For example, Microsoft Windows screen appears while the machine is still operating in VGA mode, why is always displayed with reduced resolution and color depth. VGA was officially superseded by IBM's XGA standard, but in reality has been superseded by numerous slightly different extensions to VGA clone made by manufacturers that became known collectively as "Super VGA".

VGA called "matrix" (array) instead of "adapter" (adapter), as was implemented from the start as a single chip, replacing the Motorola 6845 and dozens of discrete logic chips covering a full length ISA card that MDA, CGA and EGA used. This also allows to be placed directly on the motherboard of the PC with a minimum of difficulty (only required video memory and an external RAMDAC). The first models IBM PS / 2 were equipped with VGA on the motherboard.VGA specifications are as follows:

* 256 MB Video RAM Modes: 16-color and 256-color
* 262144 values ​​of the color palette (6 bits for red, green and blue)
* Master Clock of 25.2 MHz selectable or 28.3
* Maximum of 720 horizontal pixels
* Maximum of 480 lines
* Refresh rate up to 70 Hz
* Vertical Interrupt empty (Not all cards support it)
* Flat mode: up to 16 colors
Packed pixel mode *: 256 color mode (Mode 13h)
* Support for scrolling
* Some operations for bitmaps
* Barrel shifter
* Support from the screen
* 0.7 V peak to peak
* 75 ohm impedance (9.3mA - 6.5mW)

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Senin, 27 Februari 2012

Why LCD Monitors has more power-efficient


Last year, when Robert Mitchell, Computerworld journalist, worked to reduce the energy consumption of your home office, never imagined he would find this.
"The result was shocking. According to an energy audit of my own office, I calculated that my teams added a cost of $ 112 to my annual electricity bill or 8.5% to the total consumption of my private residence. Last year, the computer equipment in my home office consumed 803 kilowatts of power per hour, with a direct impact on the emission of 403 kilos of carbon dioxide and other greenhouse gases into the atmosphere. "
But the funny thing is that as a result of changes introduced Mitchell on their computers and work habits, he realized that "during the next year would consume 645 kilowatts per hour less, cut $ 90 delivery bill power and reduce the share of CO2 emissions to 715 pounds in the use of energy. That is a commitment to efficient use of energy I can accomplish. "
After all, all this may sound like a small change, but multiply the results of Mitchell for approximately the 36 million home offices that use computers and communications in the U.S. only. U. That's a lot of energy saving.
Moreover, by the way, saving energy must not endanger the quality or performance of their teams. In fact, it is difficult to make the best of both: high product performance and energy savings.
How you can start:
1. Measure your team. You can not be more energy efficient without knowing what position you are. An energy audit is something you can do yourself, with the help of an economic measuring device, such as the Kill A Watt meter from P3 International Corporation. The device, which retails for $ 39.99, connects to an outlet and has a plug to connect your own device to monitor. Among other things, the device displays power consumption in watts and tracks cumulative consumption over time in kilowatt hours.
2. Improve Power Management Energy Star Energy Star is a government program designed by the Environmental Protection Agency United States to support the introduction and use of energy efficient products. The new specifications for Energy Star computers became effective. When buying electronic equipment, always look for the Energy Star label, but keep in mind that energy costs are determined by their working habits, which include as simple as making sure that the power management system of your computer is properly programmed and running. Experts say that simply activate the "sleep mode" on your computer and your desktop display could do to save about 900 kilowatt hours of electricity each year. See the instructions easy to follow on enabling Energy Star power management systems in most operating systems equipment.
3. Unplug it. While it is good to start with the power management system of your computer, unplug it when not in use is even better.The reason is that most devices consume power even when turned off.
4. Consider changing to a laptop. The research institute on energy efficiency Rocky Mountain Institute made the following calculations: "Laptops save large amounts of energy than desktop computers ... They consume 14 to 25 watts while on and, most, 1 or 2 watts in sleep mode. Using a laptop could save between 40 and 100 watts, depending on the desktop computer to replace. "
5. That your next monitor is an LCD. The liquid crystal display (LCD) typically use between half and two thirds less electricity than the screens of cathode ray tube (CRT) of the same size. LCD monitors with the Energy Star label are able to save even more. Moving from a CRT to an Energy Star-certified LCD also will save between $ 10 and $ 30 per year in electricity costs. Some Energy Star partners have useful Web-based calculators that are able to quickly calculate the potential benefits of purchasing an LCD monitor.
While buying more efficient electronic devices can save energy and money, is more efficient to change the way of using computers. If you change some of their usage patterns, and unplug the computer, you can often save more energy than is replaced by a more efficient.
As Computerworld Mitchell noted in his own experiment on the ecological use of computers, "My most significant savings were due to simple changes. I replaced or eliminated inefficient equipment and changed how to configure and use."

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