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  1. P

    50mw 650nm Red Laser Pointer Pen

    17 USD. It's ok the price? I want to buy ten pieces
  2. P

    Hello

    Hello, my name is John Dacu and I am physics student. Hope to clarify some things here with you!
  3. P

    Are infrared windows an alternative?

    I think about the possibility of purchasing some IR windows for several electrical panels and a rack of network equipment, because there were few incidents in the company over time and try to avoid them. The alternative for the windows ar IR cameras from what I know, but my sources tell me they...
  4. P

    Red or green

    I found that green lasers have become more popular because they are more visible, but there is a risk of burning paper. This is caused only by the wavelength or higher power involved?
  5. P

    Photochemical effect of laser

    Can anyone explain me about this effect? I found the laser can generate chemical reactions in tissues. What are the long-term consequences?


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