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How Loud Are Your Mac's Fans?

When they get hot, Macs turn on various internal fans to keep components cool. The noise can be annoying, but just how loud is it? If you have an iOS device with a built-in microphone, you can download one of many free sound meter apps (search on decibel in the App Store) and see if you're subjecting your ears to a truly unreasonable noise level.

 
 

ExtraBITS for 17 September 2012

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Two quick ExtraBITS for you this week — Jeff Carlson is giving a live online presentation about his “The iPad for Photographers” book and Glenn Fleishman explains LTE over at the TechHive site.

Join Jeff Carlson for a Peachpit Photo Club Presentation on 18 September 2012 -- On 18 September 2012, Jeff Carlson is giving a free online presentation about the concepts and techniques in his book “The iPad for Photographers” at 5:00 PM Pacific (8:00 PM Eastern). Over the course of the hour, he’ll demonstrate how to import photos wirelessly from a camera to the iPad, rate and tag images while still on location, edit the photos directly on the iPad, and more. This will be a live demonstration (not just a set of Keynote slides), and there will be plenty of time for questions. Register at Peachpit’s site and tune in Tuesday!

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Understanding LTE -- Over at Macworld’s new TechHive site, Glenn Fleishman explains why LTE, the fast mobile broadband standard now available in the iPhone 5, is such a complicated beast, and why a “world” phone can work only across parts of the globe.

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