Probably the most promising way of detecting cosmic neutrinos is measuring the mechanical force exerted by elastic scattering of cosmic neutrinos from macroscopic targets. The expected acceleration is $\sim 10^{-23} cm/s^2$ for Dirac neutrinos of mass $\sim 10 eV$ and local density $\sim 10^7/ cm^3$. A novel torsion balance design is presented. which addresses the sensitivity-limiting factors of existing balances, such as seismic and thermal noise, and angular readout resolution and stability.

4 pages, 2 figures. In proceedings of the COSMO-98 Int'l Workshop on Particle Physics and the Early Universe, edited by D. Caldwell (AIP Press, New York, 1999)