Dip your entire nail into the container of dipping powder. Keep your nail in the powder for about 10 seconds, so that the nail gets completely covered. Take the nail out of the powder and wait 30 seconds before using a nailbrush to remove excess powder from the nail.
Rolf Reber, together with mathematician Morten Brun and psychologist Karoline Mitterndorfer, all from the University of Bergen, Norway, have reported first empirical evidence for the use of beauty as truth and they have provided an explanation for this phenomenon, based on the processing fluency theory of beauty.
However, perhaps the most important mathematical advance of the early period of the Scientific Revolution was the invention of logarithms in 1594 by John Napier of Scotland. Napier spent the next 20 years of his life developing his theory and computing an extensive table of logarithms to aid in calculation.