If you are looking for some glamorous false nails instead of just a simple manicure, you have two main options â acrylic and gel. Acrylic Nails:Acrylic nails have been around for longer than gel, and for that reason they are still the more popular choice.
A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably.
Best Answer: The black is hot, the white is neutral. the white is common the black isn't. also if you have a bare ground, it is a common ground, The reason it's called common is the breaker box end of all the white wires goes to a common neutral bar in the box. The black wires go to specific breakers.