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The Five Darkest Apple Secrets that they do not want you to know
posted September 30 2014 14:16.01 by Giorgos Lazaridis




Are you an Apple fan? Do you happen to own an iPhone? Do you also know that Apple owns a secret police force called the "Worldwide Loyalty Team"?[...more]

[Link: Dark5]
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Five Cool Science Experiments that you can do in your kitchen [Science]
posted September 30 2014 14:09.21 by Giorgos Lazaridis




Here is a compilation of five science experiments that you can do at home[...more]

[Link: HadronMesons]
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PCB Etching Bath with Direct Agitation [Project]
posted September 30 2014 14:00.28 by Giorgos Lazaridis




I made once my own PCB Etching Bath with Air Bubbles Agitation, and I can tell you that although air bubbles do speed up the etching process, they are[...more]

[Link: playwithtransistors]
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LM380 Audio Amplifier Test And Review [Chip Ideas]
posted September 30 2014 13:50.57 by Giorgos Lazaridis




Oldies but Goldies, The LM380 is one of the oldest Audio Amplifier ICs still in production, with a release date somewhere in the mid 70s'. The fact[...more]

[Link: JohnAudioTech]
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Visual IR Thermometer Comparison: FLIR TG165 vs Fluke VT04 [Review]
posted September 29 2014 19:52.31 by Giorgos Lazaridis




MJLorton has put together a very nice comparison between two of the best Visual IR Thermometer on the market, the FLIR TG165 and the Fluke VT04. Both of[...more]

[Link: mjlorton]
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Tiny Battery Check Circuit [Project]
posted September 29 2014 17:32.43 by Giorgos Lazaridis




This 9-parts battery tester will definitely work for you if you need a battery indicator for your project. A voltage divider is used to set the voltage[...more]

[Link: playwithtransistors]
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Measuring the Acceleration due to Gravity [Project]
posted September 29 2014 17:23.40 by Giorgos Lazaridis




Earth's gravity causes all objects (with mass) to accelerate towards its center with a fixed rate which is anything between 9.78 and 9.83 m/s2[/SUP[...more]

[Link]
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Basic LASER Security System [Project]
posted September 29 2014 17:14.02 by Giorgos Lazaridis




You do not need much to make a DIY LASER Security System. Although this is not the best solution to rely on for your home security, it still works. External[...more]

[Link]
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Arduino and PID to Balance Ball on Track [Project]
posted September 27 2014 18:56.35 by Giorgos Lazaridis




I rarely post projects with no documentation but this one is a very good "visual showcase" of the PID operation. If you know the PID theory then[...more]

[Link]
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