Get the app!

Post offline and never miss updates of friends with our free app.

FindPenguins for iOS FindPenguins for Android

New to FindPenguins?

Sign up free

  • Day1

    https://www.kitlaser.com/three-mode-1000mw-laser-flashlight-stainless-steel.html
    The typical small beam width of beam and the low power real laser pointer in an appropriate clean environment to make it itself is not visible, when touching the opaque surface shows only one bright spot. Some of the more powerful laser indicators project visible beams by scattering dust particles or water droplets along the path of the beam. Higher power and higher frequency buy the green laser pointer 200mw or blue, because of the Rayleigh scattering of air molecules, even in the air can produce visible beams of light, especially when viewed in medium to slightly dark conditions. When the beams are seen near the beam axis, the diffusion intensities. The pointer, especially within the scope of the green light output, used as a pointer to the teaching goal of astronomy.Read more