Hertz is the number of cycles per second in an oscillating wave form. So 60Hz has 60 identical cycles in 1 sec. An Ampere (amp, or A) is the amount of electrons (or charge) that flow past a certain point in one seconds. So amperes are Coulombs/second.
The most and the least painful places to get a tattoo. Shoulder. The shoulder is the least painful tattooing site for two main reasons. First, because in this area there is a greater amount of muscle and second â nerves are not so much sensitive as in other nooks of the body. This area is often the most used and first timers tend to opt for them.
Stage Two â Tattoo Itchy and Flaking. A lot of people regard this as the worst stage in the tattoo healing process. This stage is infamous due to the dreaded itching. At this point in the process, the scabs are hard and well-formed, and a few of the smaller ones are probably ready to start flaking off.