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Plots of θ2 as a function of 
with respect to different θ1 for Bo=1×10−4 and θY=105°. Sinking positions: θ1=100°, 130° and 160° and lifting positions: θ1=60°, 30° and 0°. The black dashed line shows the neutral position (i.e. θ2=75°). (Online version in colour.)
