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    Power and Divergence calculations?

    Hi, I'm a self-confessed newb, and am hoping to get some guidance from the much-more-experienced folks in the forum, so that a science project I'm looking to perform ends up being a) viable, and b) as safe as possible. Thanks in advance for any guidance or suggestions. There are 2...
  2. G

    Low-divergence laser pointer recommendation?

    Hi, I'm a complete and utter newb at laser pointers - but, scientifically inclined and an engineer by training. I'm hoping for a recommendation for an inexpensive consumer laser pointer with the lowest divergence that's reasonably possible. The application is for a science project for my...


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