Appendix:Polish surnames. Polish surnames are known from the Middle Ages, but only 200 years ago did the inherited surnames become compulsory. The most common Polish names Nowak, Nowakowski, Nowacki, and Nowicki are variants meaning new, Przybyszewski and Przybylski mean he who has arrived.
Beta Waves. Beta Waves, sometimes also called the beta rhythm, is the frequency of the electrical activity in the brain that falls between 12 and 30 Hz and is the state that is associated with normal waking consciousness. These brain waves are classified as low and high amplitudes.
The Beta wave has a frequency of 14-28 cycles per second. Beta is the state in which you are active and alert. In a Alpha state, your brain waves move at a frequency between 7-14 cycles per second. The frequency of Alpha is a mental state of deep relaxation and meditation.