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In Christian tradition, sanctification and sanctity are terms often associated with ethical progress and idealism. This study, however, demonstrates that in Paul's First Epistle to the Thessalonians, the earliest extant Christian writing, sanctity refers not to ethical idealism, but exclusively to God's eschatological realm.

Encyclopedia of Oxidizers contains information on both liquid and solid oxidizers. When selecting combinations of bipropellants, hypergolic or nonhypergolic, it is usually the oxidizer that determines the reactivity of the combination once oxidizer and fuel meet in the rocket engine combustion chamber. The choice of oxidizers has less of an impact on the specifi c impulse than the choice of fuels with their widely varying hydrogen content.

Encyclopedia of Liquid Fuels contains information on liquid fuels to be used as rocket propellants. In the general subject area of fuels for rocket propellants, there are both liquid fuels and solid fuels in use. Solid fuels serve a dual purpose as binders in solid rocket propellants and are not included in this book. Therefore the title of this book could not be Encyclopedia of Rocket Propellant Fuels, but the title had to be more specific by limiting the scope to liquid fuels. The choice of liquid fuels with their widely varying hydrogen content has a strong infl uence...