Fig. 4. Profiles of changes in the mean wave number with stepwise changes in gravity obtained from the suspension of T. pyriformis (A), T. thermophila (B) and TNR (C). The mean wave number (circles) and the corresponding profile of altered gravity (solid lines) are shown as a function of time. The mean wave number (left ordinate) has been scaled in relation to the magnitude of changes in gravity (right ordinate). Filled symbols correspond to the wave numbers of the patterns shown in Fig. 3. Bars, 1 min.