LordOfLA said:Just an FYI light is made up of photons, photons are particles, particles have mass, therefore laserbeams are manipulating matter, continue on with the debate poste haste
inaminit said:The photo at the beginning of the thread has a very simple expanation. The dark streak is a shadow caused by the jet contrail being at an angle that points more towards the sun than away from it. The combined volume of the contrail is enough to block out some of the sunlight and cause the shadow. Seen it happen before.
Critical thinking, what a concept.
Un4gIvEn1 said:I would have to disagree. When your friend stands in the sun, you don't see the effects of his shadow in the air. You also don't see the effects of a shadow cast by a building. If your "theory" were correct, you would see that type of effect one every city skyline across the world. You would also see that type of effect hovering below every airplane that flew overhead.
inaminit said:Well, actually you do. If you stand in front of me on a bright sunny day you'll see my shadow. But since I'm so much smaller than a contrail, and due to atmospheric scattering of light, the "shadow area" in the atmosphere doesn't stand out. You get the same effect as the contrail on those special days when there are clouds close together whith just enough gaps to let some sunlight through here and there. The shadows appear between the brighter rays shinning through the clouds. I think the rays are called anticircumspecular or something like that. They are seen most often at sunset or sunrise.
Un4gIvEn1 said:I will retract my statement because what you say does make sense... but I don't believe it would be quite so concentrated so I believe the picture is a little photoshopped. Go stand out by your local airport some time and watch and see if this happens underneath a plane. A plane does a good job blocking light, don't you think? If you had a lot of fog or smog then it would be a little more believable.
gonaads said:What is "Dark Matter"?
What is "Dark Matter" (big list).
What is "Light"?
What is "Light" for children.
gonaads said:What is "Light"?
Ohzopants said:and LordofLA, light IS massless, this is a fact.
LordOfLA said:All particulate matter must have mass, however small. You should know that from school/college/university.
Un4gIvEn1 said:You should probably post from the very first page of that article instead of the link you found on google....
http://science.howstuffworks.com/light1.htm
LordOfLA said:All particulate matter must have mass, however small. You should know that from school/college/university.