Germany became a modern, unified nation under the leadership of the âIron Chancellorâ Otto von Bismarck (1815-1898), who between 1862 and 1890 effectively ruled first Prussia and then all of Germany.
Laser effects on the skin. Thermal (burn) injury is the most common cause of laser induced skin damage. Thermal damage is generally associated with lasers operating at exposure times greater than 10 microseconds and in the wavelength region from the near ultraviolet to the far infrared.
Light from the infrared (IR) one is almost invisible (and therefore very dangerous !!!). The red laser diode can also produce a powerful laser pointer or laser-show. I supply both diodes with current 175 mA. Interesting is that the laser unit is a kind of prism that combines the two beams into one.