Isochronous (a curve) 

Isochronous being as it were not just any curve bent along said unsaid circle's line of advance in unspoke wheeling dance. Rather yet made from pencil mark point when strapped upon circular object's edge, in station at place certain fixed along its arc then circle said is rolled marking profile on paper thus of the great curve isochronous. When then cut out after traced upon thin wood and raised to verticality conceiving its inward going bend of rim a rail where a marble might roll unhindered within its symmetry which dictates the physical property when balls are released at the summit of each slope they meet simultaneous at the lowest point dead center like pure angle bifurcation and what's more, a straight forty-five degree ski-angle run rather than slope aforementioned is slow by comparison to the isochronous road, revealing a kind of smooth decrease or deceleration of acceleration increase that's faster by end result than straight constant shot down through straight incline plane's steady groove into ground. And so since the circle isochronous is constructed by repeat sketch of circumfrence pointing dextrously aligned with irony toward directionality, great circle from lesser composed, one wonders what would transpire if one took the aforemade curve and stretched it out in strengthened continuosity to make an even larger circle thus, a kind of Double Isochronous, andhow different in property from the first that would be if at all. Or if it of a sudden, aligned with that Newtonian Principle of Least Action become transformed into glowing orb explicit as Trismegistus' sublime sacred monstrance trisagion, the glory bright Thrice Holy Disc nimbus effervescent!