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 Make it a practice to turn off the lights in your room - Tips To Save Energy Lots of people today leave their bedrooms without turning the lights off. Although lights do not consume much electricity, lots of energy would be wasted if you constantly left them turned on for the most parts of the day, even if you are not inside the room. Thus, make it a practice to turn off the lights, so that you can save energy.  Make it a practice to turn off the lights in your room - Tips To Save Energy

I’ve owned a Iphone for a while now, it’s an amazing phone, the best I have ever used so far. But when I first started using it, my only concern was that the battery didn’t last as much as I expected. After two days, it was gone, and when I needed it, the phone just didn’t turn ON. I used to let the wireless on almost all the time and downloading many new apps. Now that I have some more experience on how my little gadget works, I will try to share some ideas on how you can optimize your iphone’s battery life and have a better iExperience. Wireless connectivity will drawn your battery even if you are not using it. Keeping it on, it will always try to connect to some open hot spot, try to check your emails and much more. So a good idea is to turn it on when using, and after, turn it off. Bluetooth have a similar battery usage as Wi-Fi, so there’s not much reason to leave it on if you are not using it (I believe that the most common usage for bluetooth today is the headsets and car kits)....

Simple but high efficiency of this circuit is a Colpitts oscillator for VHF. Ideal for higher frequencies above 50 MHz, Colpitts oscillators are used for VHF parasitic capacitance of the circuit is in parallel with the feedback capacitance desired and causes no undesired spurious resonances which may occur with the Hartley oscillator. The circuit above is a VCO FM, it is a grassroots project with grounded feedback from collector to emitter. A Colpitts oscillator is a series of designs for electronic oscillator circuits using a combination of an inductance with a capacitor to determine the frequency. Make an Oscillator 50-300 MHz Colpitts Type Circuits Diagram

Here is Simple Electronic Solar Project of  Top Robot (1) Make a Robot is not easy, but also not very difficult. Here we start from an easy example – Solar Top. It has below function: Rotator under sunshine Come back if meet Obstacle Keep stay in no sunshine place. This is a simple automatic robot. It don't need people maintance. The life is depend on the environment and mechanical wear. The parts cost is very low. The following is the parts you need: Clip  6 units Mini Motor  1 unit Capacitor  3 units NPN Triode  1 unit PNP Triode  1 unit 2.2K resistance  1 unit LED light 1 unit Some Wire Small Solar Panel ( >4V, 10mA)  1 unit Some Solder Wire Perforated Board 1 unit Below is the robot circuit diagram:

How to Make a Frequency Generator . On cloud busters Fredbuster created a wonder tutorial for getting started and building your own Zapper. Fredbusters Tutorial in PDF-Based off his design here is how I made my frequency generator. Frequency Generator Circuit Diagram Parts Needed 1 Project box with PC board included, 1 Compositor 1 micro farad, C2, I like the un-polarized because it allows you not to worry about positive an negative sides. If you do get one with a longer leg that's the positive, see schematic for proper placement. 1 Compositor .01 micro farad, C1 1 LED 1-3 volt, small red ones. Remember the longer leg is the positive, connect properly, 1 Resistor 3.3k ohm, R1, It will say it on the upper part figuring out the colors is a pain. See photo below for product ID. 1 Resistor 3.9k ohm R4 1 Resistor 4.7k ohm R5 1 Resistor 1k ohm R3 for creating a body zapper with pennies, 1 resistor for R2 see Fredbuster's PDF file for specific resistor for frequency. I use variabl...

For those who love tunes and the ability to take them along wherever you may roam, there are some great auto sound systems that allow you to basically plug in your favorite tunes to play as you go. It doesn't really matter which style of MP3 player you use, most of the newer auto sound systems at least have the ability to read and translate the material from these players into great music for you to enjoy on your ride by simply plugging your MP3 player into the car stereo. Many of us find that lugging around an MP3 player with all of our favorite tunes (or at least most of them-with up to 40 gigs of hard drive space it might take a while to fill completely) is much easier and more practical than attempting to lug around a huge case of CDs. It is also great for those of us who find ourselves disappointed when we purchase CDs only to find that we really only like one or two songs. Now we can simply download the songs we know and love while avoiding those we are uncertain about or at ...