Everyone should kept the answers for himself

The discount code is the wavelength of the first constructed optical laser in nanometers. (Accurate to one decimal place.)

The discount code is the distance, in parsecs, that a photon from that first laser would have travelled as of May 16 2010, if it had passed through a window at Hughes Laboratory on May 16 1960, went upwards into the sky, and had been travelling through space ever since. (Specify to 4 decimal places.)

greetz,

DJNY

Edit: If you think you have calculated the right number, you should try it out here

**For a 20% discount on any in-stock handheld laser or pointer:**The discount code is the wavelength of the first constructed optical laser in nanometers. (Accurate to one decimal place.)

**For an even better 25% discount on any in-stock handheld laser or pointer:**The discount code is the distance, in parsecs, that a photon from that first laser would have travelled as of May 16 2010, if it had passed through a window at Hughes Laboratory on May 16 1960, went upwards into the sky, and had been travelling through space ever since. (Specify to 4 decimal places.)

greetz,

DJNY

Edit: If you think you have calculated the right number, you should try it out here

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