This amazing video explain us how to open manually the door of your cd-rom in seconds. Sometimes some cd-rom stop working or some cds are arrested or damaged inside of the cd-rom. This is a good way to solve the problem. Use a wire or a clip to open the drawer of cd-rom.
This video can teach you how to repair a loudspeaker, it´s easy. If you have an old loudspeaker with problems, you may as well try it for yourself following these steps. Take a look please.
Look at this amazing video. I built this beautifull box with 11 solar cells to charge a battery. Inside the box there are also an inverter to convert 12VDC into 220AC. I can also energiser small tvs, video players, and economical lamps. This is free energy from the sun.
Do you think it´s possible to cut a piece of glass? Watch this amazing video. Please be careful with your eyes and hands. Glass can hurt you.
Build your own a simple 220v led indicator using only one resistor, one led and one diode. Take care; high voltage can kill you. Electric shock.
How to test your IR remote control with a mobile phone with camera. You can try it yourself. Amazing!
A really history of love between cats. It´s amazing, it´s life.
Build a pocket battery to store 2 old batteries for your MP3 player. 2 old batteries have almost the same voltage than a single battery fully charged.
How to build a simple IV remote control tester to test your remote control from tvs, videos, satellite receptors.