I show that the recent calculation of Moffatt's regarding the viscous dissipation of a spinning coin overlooked the importance of the finite width of the viscous boundary layer. My new estimates are more in accord with that observed. I also point out that the frequency ``chirp'' of the specially designed toy ``Euler's Disk'' is similar to that expected during the last few minutes of the life of a coalescing binary of two neutron stars. As such, this toy is an excellent desktop demonstration for the expected phenomena.
@article{arxiv.gr-qc/0102046,
title = {Dissipation for Euler's Disk and a Desktop Demonstration of Coalescing Neutron Stars},
author = {Lars Bildsten},
journal= {arXiv preprint arXiv:gr-qc/0102046},
year = {2007}
}