TECH TIP: When hit by a disaster that knocks out electrical grids you need to know how to build your own electrical generator. Diodes, the kind that make light bulbs, will also generate electricity when held in front of the sun if the filament inside is exposed. Placed in sequence, you can power up your cell phone. #techtip #cellphone #electricity

...Need more electrical power during an outage, especially in the dark? Build two large flower pots. Place a cathode in one and an anode in the other. Put in soil from the yard mixed with plant soil. add water like you are watering a plant. Run a copper wire from the anode to the cathode across the room. Place a diode lamp in the middle of the wire with the cathode and anode wires attached. As you wait several minutes, the bacteria in the pots, one that produces electricity and the other across the room that feeds on electrical current will cause current to enter the wire - run through and light up the lamp - enter the other pot. As long as the soil is damp and the anode and cathode survive bacterial digestion, you will have a constant light in your apartment. #freeelectricity #techtip