Fresnel lens

Viewing 1 post (of 1 total)
  • Author
  • #51847

    Ok, I searched this place for threads on fresnel lens. I found exactly “0” results!!
    Did they disappear or has no ever brought them up?

    I have a few small ones. Green science has videos and supplies for projects.
    What have you done with them?

Viewing 1 post (of 1 total)
  • You must be logged in to reply to this topic.
American Preppers Network Forum