I am working on a current project and I need some help: I have a attached a long piece wire to the back on a long piece of paper. I painted the piece of paper with thermochromic paint, which changes color when the wire heats up the paper when a current is run through it. It is possible have different different current along the wire at the same moment in order to display different colors on the paper at the same time? I really don't know much about electricity and accessories, so if you could give me any suggestions, that would be great! I just don't want to have different wires for different colors. Thank you for your time.

We have a GFCI circuit in the house that has always given us trouble. Apparently it is hooked up to both bathrooms, the bathroom's outlets and 1 light switch in each bathroom that is nearest the sink/outlet. In addition I have been able to determine that there is one other outlet in the bedroom adjacent to the bathroom's wall and 2 other outlets. One is an outdoor back door outlet and another outlet directly opposite the back door outlet is on the interior side. There is also a light switch above the backdoor outlets for the outdoor porch light, which only has So in total that is 5 outlets and 3 light switches on the one GFCI circuit. The problem is that the outlet in the bedroom is directly center in front of our bed and we are mounting a tv there with 1 directv box and 1 blu-ray box, all 3 needing power. The tv is a 32 inch lcd and the directv box says 55 watts on the back. Lights over vanity on only in 1 bathroom - As soon as we turn on the directv box and the tv at the same time, the GFCI breaker trips and everything on the circuit turns off. In the past if we're using both over-vanity lights and 1 hair dryer sometimes that will trip the GFCI breaker and always if that condition exists and someone also turns on the backdoor light the breaker will definitely trip off. [B]Why is such little load tripping this thing?[/B] FYI there's no water to be found near any of circuitry. The light bulb at the back door outdoor light is only 19watts (fluorescent bulb). The other light bulbs over the vanity... I don't know their wattage, but I will check. Also, I have plugged in an outlet tester into the bedroom outlet and it came up good. I also checked voltage on it and it was 121v.