Comments on: laser + coffee = blue? http://blog.everydayscientist.com/?p=452 remarking on the unremarkable Thu, 09 Sep 2010 18:13:06 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Martin http://blog.everydayscientist.com/?p=452&cpage=1#comment-14150 Martin Fri, 27 Jul 2007 02:53:46 +0000 http://blog.everydayscientist.com/?p=452#comment-14150 Nice one. I bet it's a tripled Nd:YAG, i.e. blue, laser. By the way, that IS fast. Try that in your 1.5 kW microwave oven and see how long it takes... Nice one. I bet it’s a tripled Nd:YAG, i.e. blue, laser. By the way, that IS fast. Try that in your 1.5 kW microwave oven and see how long it takes…

]]> By: randog http://blog.everydayscientist.com/?p=452&cpage=1#comment-10134 randog Sun, 20 May 2007 22:13:44 +0000 http://blog.everydayscientist.com/?p=452#comment-10134 If you point an IR remote at your camcorder, I think it looks blue in the video. Maybe the same thing's happening with the IR laser... R If you point an IR remote at your camcorder, I think it looks blue in the video. Maybe the same thing’s happening with the IR laser…

R

]]> By: sam http://blog.everydayscientist.com/?p=452&cpage=1#comment-8774 sam Tue, 08 May 2007 16:21:00 +0000 http://blog.everydayscientist.com/?p=452#comment-8774 hey niko, really good point! ccd's are sensitive in the ir, maybe out to 1064 nm. hey niko, really good point! ccd’s are sensitive in the ir, maybe out to 1064 nm.

]]> By: niko http://blog.everydayscientist.com/?p=452&cpage=1#comment-8770 niko Tue, 08 May 2007 10:49:26 +0000 http://blog.everydayscientist.com/?p=452#comment-8770 Infrared light shows up as that exact same color on several digital cameras I have. (Try pointing a TV remote at the lens and pushing a button) Infrared light shows up as that exact same color on several digital cameras I have. (Try pointing a TV remote at the lens and pushing a button)

]]> By: Disease Mongering Engine | Cruel.Com http://blog.everydayscientist.com/?p=452&cpage=1#comment-7415 Disease Mongering Engine | Cruel.Com Tue, 10 Apr 2007 00:05:08 +0000 http://blog.everydayscientist.com/?p=452#comment-7415 <!--%kramer-ref-pre%-->[...] you work in a lab of sorts. Perhaps you can answer a question posed by this scientist who posted a video of someone using a high-powered laser to heat his coffee, which is apparently a major no-no in the [...]<!--%kramer-ref-post%--> [...] you work in a lab of sorts. Perhaps you can answer a question posed by this scientist who posted a video of someone using a high-powered laser to heat his coffee, which is apparently a major no-no in the [...]

]]> By: runcycelxcski http://blog.everydayscientist.com/?p=452&cpage=1#comment-7281 runcycelxcski Thu, 05 Apr 2007 02:04:15 +0000 http://blog.everydayscientist.com/?p=452#comment-7281 someone on YouTube questioned if the cofee got radioactive. The answer is, of course, yes, and one becomse a spiderman once on drinks it. someone on YouTube questioned if the cofee got radioactive. The answer is, of course, yes, and one becomse a spiderman once on drinks it.

]]> By: william http://blog.everydayscientist.com/?p=452&cpage=1#comment-7054 william Fri, 30 Mar 2007 01:04:18 +0000 http://blog.everydayscientist.com/?p=452#comment-7054 I bet it's a quadrupled YAG. 266 nm is hard to see, but with 2 kW there will be something. Besides, at that power raman scattering may be visible. I bet it’s a quadrupled YAG. 266 nm is hard to see, but with 2 kW there will be something. Besides, at that power raman scattering may be visible.

]]> By: PhilipJ http://blog.everydayscientist.com/?p=452&cpage=1#comment-7038 PhilipJ Thu, 29 Mar 2007 17:32:42 +0000 http://blog.everydayscientist.com/?p=452#comment-7038 It's really quite easy to saturate a CCD, so I don't think that's the case here either.. you also see the same blue colour scattered from steam from the liquid, so I suspect, like Sam, that we are being "lied" to in some fashion. It’s really quite easy to saturate a CCD, so I don’t think that’s the case here either.. you also see the same blue colour scattered from steam from the liquid, so I suspect, like Sam, that we are being “lied” to in some fashion.

]]> By: sam http://blog.everydayscientist.com/?p=452&cpage=1#comment-7023 sam Thu, 29 Mar 2007 05:03:15 +0000 http://blog.everydayscientist.com/?p=452#comment-7023 also, at 2 <em><strong>kW!!!!!</strong></em>, i'm pretty surprised that it actually takes that long to heat the water. maybe we're being lied to about something here... also, at 2 kW!!!!!, i’m pretty surprised that it actually takes that long to heat the water. maybe we’re being lied to about something here…

]]> By: MartinS http://blog.everydayscientist.com/?p=452&cpage=1#comment-6989 MartinS Wed, 28 Mar 2007 08:06:13 +0000 http://blog.everydayscientist.com/?p=452#comment-6989 I don't know anything about the properties of the laser, but the cup of water glowed the same colour. I'm with Milkshake. Maybe it is the ceramic of the cup? The other possibility is that the camera CCD is saturated by the intensity of the light and the colour is an artifact. I don’t know anything about the properties of the laser, but the cup of water glowed the same colour. I’m with Milkshake. Maybe it is the ceramic of the cup? The other possibility is that the camera CCD is saturated by the intensity of the light and the colour is an artifact.

]]> By: PhilipJ http://blog.everydayscientist.com/?p=452&cpage=1#comment-6985 PhilipJ Wed, 28 Mar 2007 04:54:34 +0000 http://blog.everydayscientist.com/?p=452#comment-6985 Oh, *kW*. Hmm, no. :) Oh, *kW*. Hmm, no. :)

]]> By: sam http://blog.everydayscientist.com/?p=452&cpage=1#comment-6978 sam Wed, 28 Mar 2007 02:37:28 +0000 http://blog.everydayscientist.com/?p=452#comment-6978 PhilipJ: But have you used 2 <em>k</em>W Nd:YAG? ;) PhilipJ: But have you used 2 kW Nd:YAG? ;)

]]> By: kendall http://blog.everydayscientist.com/?p=452&cpage=1#comment-6976 kendall Wed, 28 Mar 2007 01:06:25 +0000 http://blog.everydayscientist.com/?p=452#comment-6976 Looks like a metal cutting YAG. Looks like a metal cutting YAG.

]]> By: Ψ*Ψ http://blog.everydayscientist.com/?p=452&cpage=1#comment-6974 Ψ*Ψ Tue, 27 Mar 2007 22:45:35 +0000 http://blog.everydayscientist.com/?p=452#comment-6974 Makes me want coffee. Makes me want coffee.

]]> By: PhilipJ http://blog.everydayscientist.com/?p=452&cpage=1#comment-6970 PhilipJ Tue, 27 Mar 2007 22:06:50 +0000 http://blog.everydayscientist.com/?p=452#comment-6970 I've played with enough 2W 532nm light, and that definitely isn't 532nm stuff. Anyone know what that whole instrument was for? It looks pretty weird.. I’ve played with enough 2W 532nm light, and that definitely isn’t 532nm stuff. Anyone know what that whole instrument was for? It looks pretty weird..

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