http://www.thinkgeek.com/gadgets/lights/657a/
Can this $150 laser really make a beam that is visable at night. They say the beam not just the dot is visable. So could I walk outside at night and point this thing at the sky and get a visable 10,000 ft green beam?
Why would the beam be visable? I had previous thought there had to be something for the light to reflect off of to see the beam. Does "air" work in this situation for this green beam?
10,000 ft of green beam.... You could really scare some airplanes with that
Sorry to post this in HT if it should have went else where...I just wanted some knowledgeable folks for this one.
Can this $150 laser really make a beam that is visable at night. They say the beam not just the dot is visable. So could I walk outside at night and point this thing at the sky and get a visable 10,000 ft green beam?
Why would the beam be visable? I had previous thought there had to be something for the light to reflect off of to see the beam. Does "air" work in this situation for this green beam?
10,000 ft of green beam.... You could really scare some airplanes with that
Sorry to post this in HT if it should have went else where...I just wanted some knowledgeable folks for this one.