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I don't know that they "stop" at the perceived center point as much as the space of open sky between them gets infinitesimally small to the point of not being perceptible from the ground.. they would seem to go on forever, with the patch of sky getting smaller and smaller but NEVER actually...

hmm.. could be, but then the visible length of the beam would (and does to a degree) depend on perspective I would think. If we shine a beam into the air, it appears from the ground to stop very suddenly rather than fading into oblivion, such as the way a long cable fades out of view. I can't...

In order to see a laser beam of ANY power, from .01mW to 100MW and beyond, there has to be particles in the air that reflect the light. If you were to take the most powerful visible laser in the world into a total vacuum and turn it on you would see no beam at all. So, what's happening is that...

I wouldn't recomment the B&W heads due to the fact that the divergence is pretty high. They have custom optics instead of the usual low-divergence collimation found on most CNI lasers. Also, I don't know if your lumilaser requires modulation (blanking) of the laser, but if so the B&W heads don't...

That thing probably cost a small fortune when new.. nice find!

If you're asking "why kiss?" then my heart bleeds for you.. really. lol..

My advice has always been to learn from hardcore porn. It's FULL of great romantic suggestions for making first dates special ;).

Sent an email to your gmail Jeff!

IDK if anyone answered your question or not, but what you need is some 5 minute epoxy! lol..

Re: Significant Radiation Spike Detected June 7th & 8th near Indiana/Michigan Border This article is post-military. Looks to me like he hasn't quite given up his attempts at homegrown reactor construction: 'Radioactive Boy Scout' Charged in Smoke Detector Theft | Fox News

Nope, sent an email days ago even before I posted here.

Nice DTR.. you'll be hearing from me soon!

Well I guess I've been stripped of my veteran status cause it still ain't workin' for me lol.. Too much bloody trouble trying to maintain access every time things change anyway..

Re: Significant Radiation Spike Detected June 7th & 8th near Indiana/Michigan Border A major red flag regarding the authenticity of these reports is that there is no website data on the included screenshot, nor is there a link to this "missing" information so that we can see that it's missing...

If you visualize the beam as it enters from the right, you'll see that the angle is necessary to direct the beam correctly. Any significant deviation from these angles will result in lowered brightness and distortion of the beam.

You may well be at least partially correct. At this point I'd have to defer your questions to fiber experts, as I am not one.

I've never tried using fiber to combine colors, but it does stand to reason that you would get yellow out if you somehow put green and red in. I don't use fiber at all really except ready made data fiber, so there are limits to my working knowledge. Fiber coupling can be difficult, I know that much.

No. Single-mode produces an oval, multimode produces a line or a tight square cluster of spots depending on the type of diode. Examples found randomly on the web: Singlemode: Multimode: You can see that the multimode profile is both wider and flatter, but it is also made up of multiple...

Still not working for me...

Amazing!!! Thanks for the head up Piferal ;).