Larry, Chris, All, All due respect here but, Smoke is very fine dust. To your point I must agree that the eraser example is perfect. see link to latest info about Comet Hartley 2;
http://www.foxnews.com/scitech/2010/11/19/spacecraft-flies-past-snowstorm-comet/ According to this news. They are now saying that this stuff spewing out of these jets is "fluffy ice". This seems to me to be a classic case of 'Manipulating the facts to fit their original hypothesis'? They think comets are icy. They claim that this material moving at 27,000 MPH did not cause damage to the craft because it is soft fluffy ice. I don't know just how fluffy ice can be but golf ball to basketball size "fluffy ice" objects hitting something while moving that fast does not sound like fun. Now on the other hand. If this is just smoke it is easier for me to understand why no damage was done to the craft when the craft flew through the debris left by the Comet.. So, it in deed seems to me that as Larry pointed out this stuff is not ice but is smoke. We don't have to force this result to fit any ice theory. Further, in the pictures the jets appear to be everywhere. Not just at the tail end. And the reflected light appears to be illuminating parts of the surface equal to the brightness of the jets which would seem to indicate a highly reflective substance like metal. To further this theoretical possibility. In the only gathering of actual comet dust they were able to determine that a metallic mineral Manganese / silicate was in fact spewed out of the comet. This was later named "Brownleeite" and is now considered to be a new mineral. So, in Sum, this thing looks like it is spewing out smoke (very fine dust). Isn't this possible? Why does it have to be Ice? Many objects out in space are fiery hot. Hot stuff is out there. Look no farther than our own Sun. Why according to NASA do comets have to be cold? These pictures are the only close -ups we have and they say. This is one hot chicken leg. And the conclusion should not be forced. Let the facts speak for themselves. Sorry but, I think Ice is hard not fluffy. Especially at 27K miles per hour. IMHO. Carl ---- lebof...@lpl.arizona.edu wrote: > Hi All: > > As far as I know, all we are seeing in the comet images in the jets is > dust. If you have fine dust particles and shine light on them, the > scattered light will make them stand out like that. One sees the effect in > a smokey room (or sports stadium) and I demonstrate this in a classroom by > clapping dusty chalkboard erasers together. > > Larry > > > Images can be deceiving. Certainly, the comet is not lit, except by > > sunlight. As appears to be common with comets, it has a surface coating, > > some sort of weathering, that results in an extremely low albedo. That > > isn't > > apparent in an image that has had its white and dark points adjusted for > > maximum clarity. > > > > I don't think there is any doubt that the body is very cold in its > > interior, > > and is made of some mixture of ices and stony material. The surface may > > well > > approach room temperature, which is what is driving the boiling away of > > ices > > that produces a coma. > > > > Chris > > > > ***************************************** > > Chris L Peterson > > Cloudbait Observatory > > http://www.cloudbait.com > > > > > > ----- Original Message ----- > > From: <cdtuc...@cox.net> > > To: "Meteorite Mailing List" <meteorite-list@meteoritecentral.com>; "Ron > > Baalke" <baa...@zagami.jpl.nasa.gov> > > Sent: Monday, November 15, 2010 2:46 PM > > Subject: Re: [meteorite-list] NASA Announces Comet Encounter News > > Conference > > > > > >> List, > >> I wonder if these new images will shed new light on the definition of > >> what > >> a comet is? > >> Typically the description includes the words frozen and ice in some > >> form. > >> But clearly based on the close-up visual images. It seems that this > >> thing > >> is far from being ice. In fact to me it appears to look more like a > >> fiery > >> hot briquette about ready to throw the steaks on to. It seems from the > >> photos that this thing is fully lit from the inside core to the > >> surface. > >> And could not possibly consist of ice in any of it's forms melted or > >> frozen. Well, maybe the surface stays wet and cold but the inside is far > >> from cold. > >> Hopefully this conference will alert us all with an update as to what > >> we > >> hunters need to be looking for. Because clearly it aint Ice. That's for > >> sure. But I am dying to find out what it is after all! It seems to me > >> we > >> should be looking for melted stuff. Really really melted stuff. Has > >> anyone > >> heard yet what they plan to say the interior is made up of? > >> My 2 more cents. > >> Carl > > > > ______________________________________________ > > Visit the Archives at > > http://www.meteoritecentral.com/mailing-list-archives.html > > Meteorite-list mailing list > > Meteorite-list@meteoritecentral.com > > http://six.pairlist.net/mailman/listinfo/meteorite-list > > > > > ______________________________________________ > Visit the Archives at > http://www.meteoritecentral.com/mailing-list-archives.html > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
