GALAXY

For remote sensing, spectroscopy at THz frequencies holds the key to our ability to remotely sense enviromnents as diverse as primaeval galaxies, star and planet-fonuing molecular cloud cores, comets and planetary atmospheres. 

Hartquist T W and Williams D A (eds) 1998 The Molecular Astrophysics of Stars and Galaxies (Oxford Oxford University Press)... 

The regions of space where molecules have been detected are the nebulae which are found not only in our own galaxy but also in other galaxies. In our galaxy the nebulae are found in the Milky Way, which appears as a hazy band of light as a result of its containing millions of stars. Associated with the luminous clouds composing the nebulae are dark clouds of... 

Table 5.2 shows that quite large molecules, of which the cyanopolyacetylenes form a remarkable group, have been detected. The presence of such sizeable molecules in the interstellar medium came as a considerable surprise. Previously, it was supposed that the ultraviolet radiation present throughout all galaxies would photodecompose most of the molecules, and particularly the larger ones. It seems likely that the dust particles play an important part not only in the formation of the molecules but also in preventing their decomposition. 

The Y-shaped rayon data are based on Courtaulds Galaxy fiber. 

A. G. Wilkes, "Galaxy-A New Viscose Rayon Fibre foi Nonwovens," Proceedings of the INDA-TEC 89 Conference, 1989. 

Capillary Rheometry Galaxy III, V Automated Capillary Rheometers Galaxy I... 

Figure 8.30. Cumulative number distribution for the galaxies in the Universe. Mass is assumed proportional to absolute luminosity (units solar luminosity x 10 ). From Brown et al. (1983).

In fact, the sun is not a first-generation main-sequence star since spectroscopic evidence shows the presence of many heavier elements thought to be formed in other types of stars and subsequently distributed throughout the galaxy for eventual accretion into later generations of main-sequence stars. In the presence of heavier elements, particularly carbon and nitrogen, a catalytic sequence of nuclear reactions aids the fusion of protons to helium (H. A. Bethe... 

If the galaxies are moving away from each other, then in the past they were closer to one another than they are now. Furthermore, it can be calculated from... 

P-xv artist s impression of galaxies being formed in the aftermath of the Big Bang. The spiral clouds of gas have already started condensing into the shapes of future galaxies. (Photo Researchers Inc.)... 

How might the interaction between two discrete particles be described by a finite-information based physics Unlike classical mechanics, in which a collision redistributes the particles momentum, or quantum mechanics, which effectively distributes their probability amplitudes, finite physics presumably distributes the two particles information content. How can we make sense of the process A scatters J5, if B s momentum information is dispersed halfway across the galaxy [minsky82]. Minsky s answer is that the universe must do some careful bookkeeping, ... 

Our knowledge of the stars and of space is entirely obtained through spectroscopy and will be for the forseeable future. That is not at all to say we know and shall know little of the other galaxies. It is to say that our information will be incomplete. But man is opportunistic and clever —small pieces of a spectroscopic jawbone may... 

Fig. 25. Experimental and predicted mid-bed temperature. Vehicle Galaxie, 289 cu. in. engine with thermactor. Converter radial, 392 cu. in. Catalyst aged type F (12,500...

The scarcity of data and their invaluable content require that they be recorded in the most careful manner. The human eye is an incredibly powerful and versatile instrument, with an amazing dynamic range. But almost the entire universe is beyond its reach. Modem telescopes have a sensitivity 9 to 10 order of magnitude higher, yet they are barely able to provide a glimpse at the youngest galaxies, least to say stars. 

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