Hi Horace, I'm recombining both of your last posts into one.
... > Real hands on proof of the theory may come in the form of > finding mirror matter right here on earth. There may be minerals > around that maintain a temperature colder than the local > environment. If you happen to find some material that seems > to maintain a temperature colder that its surrounds, do some > calorimetry on it. Put it in a well insulated container with > a thermometer. After a while, say a half hour, check for a > difference between the thermometer in the box and one outside > the box. If the box is colder then the material contains mirror > matter. Mirror photons go right through ordinary matter, and > thus the black body radiation from mirror matter flows right > through our ordinary matter insulation. > > Finding a large source of mirror matter would be of great > practical importance, both for space travel and for energy > production. Such sources may exist deep in the ground in the > neighborhood of large meteor hits. > > Horace Heffner > http://www.mtaonline.net/~hheffner/ Also, wouldn't a sizable macro-scale amount of mirror matter appear to weigh less than predicted? In fact If I understand this correctly if a sample was composed more than 50 percent (volume-wise) of mirror matter wouldn't it manifest negative weight, or antigravitation influences? If so, the stuff would obviously be difficult to locate! Would have likely floated away millions & billions of years ago! ;-) I wonder if both normal and mirror matter would actually have the chance to coalesce (to solidify before escaping the Earth's gravity) in certain rare meteor strikes. I presume you are theorizing that, realistically speaking, its more likely that we would only be able to collect a very small percentage of mirror matter dispersed within the confines of normal matter. If such rare species exist it seems to me that it might be feasible to heat up a suspected sample - basically melt it down. If the sample could be liquefied, wouldn't the mirror matter gradually migrate to the top where it would eventually concentrate in greater percentages? Seems to me that this might turn out to be a more dramatic way to discover whether mirror matter actually exists. Conceivably one might be able to collect sufficient quantities to be able to physically observe a small amount rolling about at the top of the collection box! > I just realized your above question may have a meaning that > differs from my interpretation of it. I probably wrongly > interpreted "a significant percentage of them are composed > entirely of mirror matter" to mean that "a significant > percentage of each of the observable galaxies is probably > mirror matter", that is to say some significant percentage > of every observable galaxy is probably mirror matter. A > galaxy entirely comprised of mirror matter would not be > observable except maybe through negative gravitational > lensing. The interaction of highly energetic mirror > matter and ordinary matter is visible on a galactic scale > due to the very weak (primarily nuclear) coupling that > exists between the two. That's a bummer! The implication is that half the universe is incapable of seeing the other half. It's beginning to sound more like political and/or philosophical conjecture. IOW, the invisibility is due to the fact that light (from our perspective) would tend to bend away from the centers of mirror mass galaxies. Likewise, I would assume civilizations inhabiting mirror galaxies would not be able to directly see our "normal" matter galaxies either. BTW, due to the nature of light bending to the will of normal mass, wouldn't normal galaxies on average have a tendency to look a little bigger than they really are? This seems to me to be a logical conclusion. > BTW, there are some spectacular galaxy photos located at: > > http://heritage.stsci.edu/gallery/gallery.html Great photos. Thanks. Regards, Steven Vincent Johnson www.OrionWorks.com www.zazzle.com/orionworks

