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.
YES! Receiving a tattoo is a painful process. It requires the application of pigment under the first epidermal layer of the skin. The larger the tattoo the longer it will take to do, so small tattoos hurt less than large ones! But remember, people wouldn't get a second tattoo if the first one hurt that bad. Don't be a sissy!