Hi, I was thinking about gravity waves and how big leading theorists believe they may be in size of wavelength? I saw a video where Steve Gerricks (sp?) of NIST in Colorado, shows how the NIST clocks are so accurate and at different elevations and in different geographic locations, so that he can detect how the earth's spherical shape deforms and compresses using the time differences between clocks of varying altitudes. So a higher up clock beats a bit faster since its further from the gravitational mass of the Earth. This seems like a gravity wave to me. But clearly it is a definition thing and I am wrong. What about LISA and her 3 500,000km spaced satellite array.. are they meaning to find gravity waves larger than 1,000,000km in length? I wonder what the longest wavelength it can pick up is, with its triangular array... Thoughts, correction? Thanks.