I know that using a red flashlight, or like painting red nail polish on normal flashlights and all that, helps you see the night sky better because of.. I don’t know, red’s wavelength or something?
So I was wondering, could this work on all the street lights and lamp posts outside? If we turned the [...] http://bit.ly/9S49EP
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment