  In this paper, classical gravity is reformulated in terms of loops, via an
algebraic topological approach. The main component is the loop group, whose
elements consist of pairs of cobordant loops. A Chas-Sullivan product is
described on the cobordism, and three other products, namely the 'vertical',
'horizontal' and 'total' products are re-introduced. (They have already been
defined in an earlier paper by the author). A loop calculus is introduced on
the space of loops, consisting of the loop variation functional,the loop
derivative, Mandelstam derivative, and what the author wishes to call, the
Gambini-Pullin contact functional. The loop derivative happens to be a
generator of the group of loops, and the Gambini-Pullin functional is an
infinitesimal generator of diffeomorphisms. A toy model of gravity is
formulated in terms of the above, and it is proven that the total product
provides for the Maurer-Cartan structure of the space. Further, new quantities
labeled as 'momenta', 'velocity' and 'energy' are introduced in terms of the
loop products and loop derivatives. The prospect of re-constructing general
relativity in higher dimensions is explored, with the 'momenta' and 'velocity'
being the basic loop variables. In the process, it is proven that the 'momenta'
and 'velocity' behave as cobordant loops in higher dimensions.
