The intensity of the ancient lunar field from magnetic studies on lunar samples

Palaeointensity determination on Apollo 11, 16, and 17 rocks have indicated that from 3.9 to 4.0 AE ago the strength of the surface lunar magnetic field was about 1.3 Oe, while there is evidence from younger rocks that a field of about one quarter of this value was present at a later time (3.6 AE)

Cattle Feeding Barns and Shelters

Cattle feeding barns, carefully planned and properly built for sanitation and convenience of man and beast, represent good investments. The types of shelters and barns described in this circular have been used long enough by successful breeders and feeders in this state to demonstrate their worth. They are both economical in construction and practical for cornbelt conditions

Postcard: 2680 Parkers Playhouse, Abilene, Kansas

This black and white photographic postcard features a three story building at Abilene, Kansas. Exterior stairs are on the right side of the building. A fence is on the right side of the card and another fence is in front of the building. Prairie grass is in the foreground with written text at the bottom of the card. Handwriting is on the back of the card.https://scholars.fhsu.edu/tj_postcards/2257/thumbnail.jp

Beef Cattle Equipment: Feeding Equipment for Cattle

Practically all of the pieces of cattle-feeding equipment described in this circular have been tried out for some years in the barns and feedlots of successful feeders. They may be \u27\u27home built\u27\u27 and when used will save time, labor and feed and add that much to the possibility of feeding cattle at a profit. Such feeding equipment as bunks, mangers, self-feeders for both grain and roughage, watering tanks, water storage tanks, cattle stocks, shipping crates, scale pens, dipping vats and the like, is necessary; the extent and kind of this equipment will depend upon the circumstances and needs of the individual feeder

Architectural/Environmental Handbook for Extraterrestrial Design

Handbook on environmental and space utilization criteria for design of extraterrestrial manned spacecraft and shelter

Radio Images of 3C 58: Expansion and Motion of its Wisp

New 1.4 GHz VLA observations of the pulsar-powered supernova remnant 3C 58 have resulted in the highest-quality radio images of this object to date. The images show filamentary structure over the body of the nebula. The present observations were combined with earlier ones from 1984 and 1991 to investigate the variability of the radio emission on a variety of time-scales. No significant changes are seen over a 110 day interval. In particular, the upper limit on the apparent projected velocity of the wisp is 0.05c. The expansion rate of the radio nebula was determined between 1984 and 2004, and is 0.014+/-0.003%/year, corresponding to a velocity of 630+/-70 km/s along the major axis. If 3C 58 is the remnant of SN 1181, it must have been strongly decelerated, which is unlikely given the absence of emission from the supernova shell. Alternatively, the low expansion speed and a number of other arguments suggest that 3C 58 may be several thousand years old and not be the remnant of SN 1181.Comment: 12 pages; accepted for publication in the Astrophysical Journa

A Hundred Years: A Statement Of The Development And Accomplishments Of Churches Of Christ In Australia

https://digitalcommons.acu.edu/crs_books/1394/thumbnail.jp

Elementary excitations in the gapped phase of a frustrated S=1/2 spin ladder: from spinons to the Haldane triplet

We use the variational matrix-product ansatz to study elementary excitations in the S=1/2 ladder with additional diagonal coupling, equivalent to a single S=1/2 chain with alternating exchange and next-nearest neighbor interaction. In absence of alternation the elementary excitation consists of two free S=1/2 particles ("spinons") which are solitons in the dimer order. When the nearest-neighbor exchange alternates, the "spinons" are confined into one S=1 excitation being a soliton in the generalized string order. Variational results are found to be in a qualitative agreement with the exact diagonalization data for 24 spins. We argue that such an approach gives a reasonably good description in a wide range of the model parameters.Comment: RevTeX, 13 pages, 11 embedded figures, uses psfig and multico