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Based on scores of medieval manuscript texts and diagrams, the book shows how Roman sources were used in the age of Charlemagne to reintroduce and expand a qualitative picture of articulated geometrical order in the heavens.

"The purpose of this monograph is to help special educators design social behavior curricula that teach alternative or replacement behaviors for the negative ones."--Page 1.

"The last time I tripped before this summer, two years ago, I was on a beach thinking about the invitation I had gotten to my ten year high school reunion. Undoubtedly, if I went someone would ask what I did. The answer that came to me then was that I was primarily in urine production. It almost made me want to go so I could tell them that."At thirty, Jack is marginally employed, desperately broke and alone in the nascent-hip Chicago of the mid-nineties, and beginning to gain an awareness of how much more miserable his situation will become if he doesn't get out of his own way. Told entirely through letters written to a handful of old friends whose replies we never see, Jack unspools tales of immoderate drug use, bizarre urban ramblings, romantic grudges, desires, fears and politically correct grammatical innovations over the course of the second half of 1995 as he struggles to leave a city full of bad memories without returning in defeat to his childhood bedroom in Staten Island. Laced throughout this darkly hilarious epistolary novel, in the voice of an intentional underachiever who really does kind of want to be less of an asshole someday, are Jack's real-time experiences of the brutal heat wave that killed hundreds in Chicago that summer and the last-ever real Grateful Dead show (with Jerry Garcia), as well as his impressions of the O.J. Simpson murder trial, the Oklahoma City bombing, the Unabomber Manifesto, Rabin assassination, Bosnian genocide, Windows 95 and government shutdown. Anyone who says Millennials have a corner on angst, lack of direction, failure to personally connect, and the inability to get going with independent 'adult' life is hereby proved wrong.

Conical electrostatic probes of lengths 0.153, 0.393 and 1.0 cm were placed in partially ionized argon flows in the laboratory in order to study the use of their current-voltage characteristics in the measurement of ion number densities over a wide range. The ion densities and electron temperatures of the flows were measured with thin cylindrical electrostatic probes, and the neutral properties were determined from impact pressure, stagnation pressure and stagnation temperature measurements. The current-voltage characteristics of the ion-attracting conical probes were measured and compared to thin and thick sheath theories. Over the whole range of ion densities the measurements agreed reasonably well with the thin sheath theories of Chung and Blankenship (1966) and Denison (1967) which yield explicit expressions for the ion densities in terms of measurable quantities. (Modified author abstract).