The Positive Sciences of the Ancient Hindus c5.s1.6

c5.s1.6

(ii) the directions of the successive motions may be different, as in curvilinear motion (यदनियतदिक्प्रदेशसंयोगविभागकारणं तद्गमनं), *e.g.* भ्रमण (rotatory motion), स्पन्दन (vibratory motion), etc. All these are varieties of Gamana (गमन, curvilinear motion). उत्क्षेपणादिशब्दैः अनवरुद्धानां भ्रमणपतनस्पन्दनादीनां अवरोधार्थं गमनग्रहणं कृतम्—*Ibid.*; *cf.* Śankara Miśra, गमनत्वं च जातिविशेषः भ्रमणरेचनस्यन्दनोर्द्ध्वज्वलननमनोन्नमनादिष्वपि. In another sense, all kinds of motion in material (inanimate) objects, whether rectilinear or curvilinear, are called Gamana (गमन).