reversible fabric
71Early medieval European dress — changed very gradually from about 400 to 1100. The main feature of the period was the meeting of late Roman costume with that of the invading peoples who moved into Europe over this period. For a period of several centuries, people in many… …
72History of the floppy disk — 8 inch, 5¼ inch, and 3½ inch floppy disks Over the history of the floppy disk a number of different formats were used. Floppy disks have now been largely superseded by other storage media and by network file transfer. Contents …
73railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
74Conservation-restoration — Removal of adherent surface deposits by physical chemical means (by cotton swab). Church of Suceviţa Monastery, burial chamber. Romania, Suceava. Conservation restoration, also referred to as conservation, is a profession devoted to the… …
75Sulfuric acid — Sulfuric acid …
76Atrial septal defect — PFO redirects here. For the airport, see Paphos International Airport. Atrial septal defect Classification and external resources Heart of human embryo of about thirty five days ICD 10 …
77Fur clothing — Coypu jacket, reversible (2008) Fur clothing is clothing made of the fur of animals. Fur is one of the oldest forms of clothing; thought to have been widely used as hominids first expanded outside of Africa. Some view fur as luxurious and warm;… …
78David Petraeus — Director of the Central Intelligence Agency …
79Universe — • Presents a history of astronomy Catholic Encyclopedia. Kevin Knight. 2006. Universe Systems of the Universe † …
80Quantum entanglement — Quantum mechanics Uncertainty principle …
