On condition that the front body shape of the projectile is unchangeable,a formula is obtained for determining the relation between the optimum boattail angle and the supersonic flight region.
" 'God is a spirit, infinite, eternal and unchangeable, in His being, wisdom, power, holiness, justice, goodness, and truth, '" responded Anne promptly and glibly.
Now, neoliberal economic theory has sold itself to you as unchangeable natural law, when in fact it's social norms and constructed narratives based on pseudoscience.
The British leader said he wants the EU to make a clear and unchangeable agreement that ends his country's obligation to " work for an ever closer union."
The world of being is unchangeable, rigid, exact, delightful to the mathematician, the logician, the builder of metaphysical systems, and all who love perfection more than life.
And by the eternal Poles! these same Trades that so directly blow my good ship on; these Trades, or something like them—something so unchangeable, and full as strong, blow my keeled soul along!