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Archive for the ‘TECHNOLOGY’ Category

How to design & build your own DIY subwoofer

February 19th, 2012 No comments

This hub is all about how to build your own DIY subwoofer. All of this stuff I had to find out by trawling the internet and asking on forums when I first started researching DIY subwoofer building. I thought this guide would help some people out that want to build a subwoofer or two, but don’t really know what’s involved.

For a relatively low budget and some time, you can make something that matches or beats the performance of a considerably more expensive commercial subwoofer. The reasons for this are simple, commercial subwoofer manufacturers have to compromise to some degree with the size of the cabinet and the cost of components to be able to make something that appeals to the masses and is also cost effective so they make a profit. Of course when you’re building your own DIY subwoofer, then you shouldn’t have to worry about these things and can concentrate on getting the best performance you can get for your money. The other nice thing about making your own is if you are creative you can have it looking however you want. I’ve included some pictures of inventive DIY subwoofers that people have made

Why do I need a subwoofer?

The reasons for this are simple. The human range of hearing is 20hz up to 20000hz. 20hz is very low bass, 20000 hz (20khz) is very high.

If you take a soundtrack from a film, then the frequency range of the sounds in that film range from 10hz in some cases, which is below the human range of hearing, up to 20khz. To be able to accurately reproduce the soundtrack as it was designed to be heard and felt, you need speakers that can reproduce that full range. Most speakers are able to reproduce the higher end of the range, but at the low end then a lot of power is needed and the majority of speakers, even large floorstanders simply cannot reproduce these. Most speakers, even large floorstanding speakers, tend to only be able to play down to about 40hz. This is where the subwoofer comes in useful. They are designed to only reproduce low frequencies, which underpins the sound coming from the main speakers enabling the full range to be experienced.

Taking professional (camera phone) pictures

February 18th, 2012 No comments

Camera phones can take good pictures too

We all know that taking a picture on a camera phone will not come close to the quality you will get using a DSLR camera or even a point-and-shoot digital camera. I’m not saying that you should run around snapping photos on your phone, but you can get some nice pictures with a bit of work. My phone has a 8 megapixel camera , which is large enough to create detailed pictures that aren’t tiny, but anything over 5 megapixels should be suitable.

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How to Keep in Touch with Internet-Challenged Seniors

February 17th, 2012 No comments

It’s hard to remember the days of waiting 3-4 days for a letter or response to a missive you’d sent someone. (And some people are too young to even have a memory of those times.) But there is a sizeable section of our population that lives that way—the 75 years and older group. A good part of this population still reads the newspaper (the kind that gets your fingers dirty by the time you’re finished), still subscribes to glossy magazines and still looks forward to the daily visit from the mail carrier to herald another possible connection with the outside world and (hope beyond hope!) loved ones.

The 5 Most Anticipated Gadgets of 2012

February 16th, 2012 No comments

2011 witnessed growing innovation in gadgetry, especially in tablets and mobile phones. Apple’s iPad 2, Samsung’s Galaxy S II and the 4th incarnation of the hugely popularAmazon Kindle - along with it’s Kindle Fire cousin – represent a tiny proportion of the significant progression and adoption of modern technologies. 2012 looks to be as, if not more exciting than 2011, with the introduction of Intel’s Ivy Bridge processor range, the Samsung Galaxy S III and Windows 8.

Produce Your Own Energy With A Solar Panel Kit From A Hardware Store

February 15th, 2012 No comments

Research Your Options And Make a Decision

 Producing your own power can be a fun and easy project that could grow into an addictive hobby. When I was younger, I always dreamed of making my own electricity from solar panelsbut was discouraged by how expensive the panels and equipment were. As an adult, I was thrilled when I saw that many hardware retailers, such as Norther Tool and Harbor Freight as well as online retailers, were offering extremely affordable kits consisting of solar panels, a charge controller, wiring, a frame for the panels and in most cases, even including a few fluorescent lights that could be used with the charge controller. While researching which kit I would buy and from what retailer, I discovered that most of the kits ranged in price from about $160 to $300 and produced 45 watts worth of energy.

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How smartphone camera tech will evolve in 2012

February 10th, 2012 No comments

By Christina Bonnington

We love documenting our lives. If we didn’t, well, there probably wouldn’t be a hugely successful online behemoth called Facebook. And smartphone photography wouldn’t be the thriving phenomenon that it is today.

Smartphones accounted for more than a quarter of all photos shot in 2011, according to research from NPD. The iPhone has even been called the “snapshot camera of today” by celebrity photographer Annie Leibovitz.

Should you feel guilty for buying your iPhone?

February 9th, 2012 No comments

Last week, The New York Times gave us an inside look at what it’s like to work at Foxconn, the manufacturing company that owns several China-based factories that crank out Apple’s iPads, iPhones and iPods by the millions.

The story is full of examples of horrifying working conditions in Foxconn’s factories that would never fly here in the United States. Here are some of the more troubling ones from the Times story:

Foxconn is a 24-hour operation. Employees work six days a week, sometimes in 12-hour shifts. They’re on their feet for so long that their legs begin to swell. There are underage workers. They live in crowded dorms on the factory’s campus. In recent years, there have been reports of workers leaping from buildings in apparent suicides.

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How not to annoy people via e-mail

February 8th, 2012 No comments

E-mail can be a lovely way to connect, an easy and instant medium for getting back or keeping in touch, a canvas for hellos and sorrys and XOXOs.

But more often than not it’s a backdrop for obnoxious behavior, and you, gentle readers, just don’t stop giving us reasons to wag our fingers at you.

We’re not talking about the content of your digital missives (though plenty of you could stand to take a course in Spelling 101 or How to Avoid Coming Across as Brusque and/or Angry).

5 tech tools for the Super Bowl

February 7th, 2012 No comments

By Doug Gross, CNN

When the Giants and Patriots take the field on Sunday in Indianapolis, they won’t be doing battle in soft leather helmets with no face masks. And there definitely won’t be some kid on the sideline ladling out water from a tin bucket to quench their thirst after a big play.

So, if the Super Bowl teams have embraced emerging technology, why shouldn’t you?

Sure, you could just sit there staring blankly at the screen, scooping salsa out of the jar with your fingers and saying, “Hey … wasn’t that … what’s-her-name?” after every surprise celebrity commercial appearance. But the tech and Web worlds want better for you.

Here are five techie tools that can help make you an all-pro couch potato on Sunday.

8 things you should know before building a mobile app

February 6th, 2012 No comments

Editor’s note: Seth Porges is a magazine editor and the creator ofCloth, an iOS fashion app for iPhone and iPod Touch. His Twitter handle is @sethporges.

(Mashable) – App appeal is obvious. The barrier to entry? So low!

The upshot of producing the next Angry Birds or beer-chug simulator? So high!

Heck, with just a small investment of time and cash, it’s not hard for would-be mobile moguls to turn a concept into a steady stream of cash. And thanks to today’s app stores, it’s never been easier to try your hand at becoming the next tech tycoon.

Here’s (almost) everything you need to know before you get started on your own app — and what I wish I knew before I got into the game.

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