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Visible spectrum
VISIBLE SPECTRUM

Definition: The part of the electromagnetic spectrum that may be perceived by the human eye. It extends from a wavelength of almost 3800A (violet light) to almost 7600A (red light).
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See perfect part (1).

See perfect spectrum (2).
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See perfect perception (1).

See perfect measurement (2).

1520 Products

1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way.

1520 Sex Game

1520 Puzzles

1520 Marriage Game