This consists in the admission of air for the purpose of preventing stagnation of the atmosphere and for the regulation of temperature.
A period of mathematical stagnation then appears to have possessed the Indian mind for an interval of several centuries, for the works of the next author of any moment stand but little in advance of Brahmagupta.
He will not tolerate the stagnation and tedium of a dull uniformity by mechanical reproduction.
In a period of general stagnation in mathematical studies, he stands out as a remarkable exception.
Stagnation of water is inimical to the action of the roots, and does away with the advantageous processes of flowing and percolating currents.