Thursday, October 27, 2011

Voltage Valet Auto Switch HI LO Travel Adapter Converter Kit with 4 Plugs

!: discounted Voltage Valet Auto Switch HI LO Travel Adapter Converter Kit with 4 Plugs quickly

Brand : Voltage Valet
Rate :
Price :
Post Date : Oct 27, 2011 13:19:58
Usually ships in 1-2 business days



Use with motorized and electronic appliances rated up to 50 Watts.Use with NON-ELECTRONIC heating appliances up to 2000 watts maximum.

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Sunday, October 23, 2011

Successful Travel Photography

!: Successful Travel Photography

Travel photography is quite different from other photographic endeavors especially if you plan to make a living from it.

Most successful travel photographers are writers as well. Actually in the print world, you can't separate words from pictures. They complement each other.

What the picture can't show, the words explain in greater detail. So it's no surprise that some travel articles are sometimes from husband and wife teams.

That's the perfect job for couples. Think exotic locations, the love of your life with you and endless adventures together.

My biggest problem with travel photography is that a lot of the imagery you see have been so photographed that they're the equivalent of visual clichés. What comes to mind when you think of China? Great Wall of China, or the Forbidden City in Beijing? Egypt? The Great Pyramids. India... the Taj Mahal. Indonesia...Borobodur. Cambodia...Angkor Wat.

As in most printed media, the pictures tend to be more important than the words. A visually striking image will draw a casual browser of publication into reading an article even if the headline is not well-written.

A great selection of pictures of one destination can save a article with mediocre writing. But the same can't be said if the pictures are of poor quality.

No matter how good and compelling the writing, if the pictures are just mediocre, readers will not be drawn to the story.

Poorly composed images, especially ones with lots of technical flaws like low resolution, artifacting and digital noise cannot be rescued. As powerful as Photoshop is, it simply can't fix or add something that isn't in a picture.

Even if it can, there is the ethical question of are you allowed to? Most magazine have strict guidelines against such manipulation of images especially in their editorial content.

But poorly written articles can be "massaged" and fine-tuned by editors into some quite readable.

Tips for a successful trip:

1. Careful planning and research of your destination.

Obvious yet a lot of people don't consider this when making their plans. Festivities like Oktoberfest in Germany, Tournament of Roses in Pasadena, California takes place annually at the same time.

And by planning I don't just mean planning for the length of time you are going to be at your destination. If you're a digital photographer, you'll need power to charge your batteries and a way to download and clear off your memory cards or you will be up the proverbial creek without a paddle.

If you're headed abroad where electrical power is different from home, you'll also a voltage converter. I recommend the Kensington 3317 International All-in-one Travel Plug Adapter.

2. Precise note-taking.

Whether you use a laptop or pen and paper, having good habits like keeping receipts and other bills incurred during the trip is important.

Even if you're not writing the article, precise notes on how to get from town A to town B, how much the fare was, the duration of the drive are all details which add value to your pitch to magazines or collaborative effort with a writer.

Remember your recall will not be so good once you're home. Foreign names have a way of sounding the same when you get home, so good note-taking is critical.

Your article will have more credibility if you provide details since a travel article is part "how-to" and part narrative. Another reason for those notes is documentation when you claim the trip as a business expense.

3. Digital SLR with wide and telephoto zoom lens

Think "light." If you're lugging around a lot of gear, you'll be too beat to use your camera. Traveling light doesn't mean you leave essentials like a healthy supply of extra memory cards, batteries and flash units at home.

If you're bringing along a laptop, then a supply of writable CDs or DVDs is important.

Even if you don't have a chance to edit your images after you download them to your computer, you should burn those images as a backup and mail them to yourself.

That way if all your gear is stolen, you'll still have images to show when you get home.


Successful Travel Photography

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Thursday, October 20, 2011

Transducers - The Remarkable Changers

!: Transducers - The Remarkable Changers

Complex control systems all make use of signals that can be
easily measured and altered remotely. Automatically operated
machines or actuators need to be powered either by electrical
motors, pneumatic or hydraulic cylinders.

The most common signals sent out from a transducer are
electrical current or voltage and pneumatic pressure. These
signals are easily translated by controllers. Visual measuring
devices like liquid bulb thermometers are not able to be used
in automatic control systems because there are no electrical
or pneumatic signals.

However, when some other component is added to it to enable it
to give a corresponding signal, then the measuring unit becomes
a transducer.

A transducer is a device to convert a signal (representing a
physical quantity) of one form into a corresponding signal of
another form, retaining the amplitude variations of energy
being converted.

Just as an example, a microphone is a sound transducer (acoustic
to electrical) and a loudspeaker is an electrical transducer
(electrical to acoustic). A transducer may be an integral part
of the measuring unit, for example pressure to displacement in
a Bourdon pressure gauge. It may also be a separate unit
converter especially suitable to change the signal to a better
form for remote transmission, e.g. displacement to electrical
in a differential transformer.

How do these transducers work?

To convert physical movement to electrical signals, some devices
make use of variable resistors. Any movement will cause a slider
contact to change position against a resistance wire causing a
change in electrical current or voltage. Other devices may make
use of the movement to alter the position of an induction coil
relative to the magnetic core, causing a change in the induced
current in the circuit. Others may make use of the movement to
change the air gap between two capacitance plates, causing a
change in the current in the circuit.

In the case of the loudspeaker, the opposite effect takes place.
Electrical signals are converted to movement.

Some pneumatic transducers make use of changing air signals to
cause a corresponding mechanical movement in the flapper and
linkages. This movement is then converted to electrical signals
by the methods above. So it takes 3 steps of conversion before
we can get the electrical signal.

Once the electrical signal is obtained, it can be used to compare
to the set value in the controller, and a whole control system can
be designed from it.

Well folks, get your signals and be in control!

"What You Should Know About Travelling Make Ease"
The Smart Traveller prepares for Journeys into Unknown Territory.
Foreign Travel requires More.


Transducers - The Remarkable Changers

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Monday, October 17, 2011

GE 23611 Dual Watt Foreign Voltage Adaptor

!: expert reviews GE 23611 Dual Watt Foreign Voltage Adaptor discounted

Brand : General Electric | Rate : | Price : $29.99
Post Date : Oct 17, 2011 11:12:28 | Usually ships in 1-2 business days


  • Convenient 50/1600 watt switch
  • Use your North American electrical or electronic products in other countries

More Specification..!!

GE 23611 Dual Watt Foreign Voltage Adaptor

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