**Plocamium ****Biomechanics**
To determine the coefficient of drag for *P. cartilageneum*, I followed
the same procedure outlined by Gaylord et al. (1994). By measuring the drag
force, surface area, and flow velocity, and using the equation,
drag force = (0.5)(p)(coefficient of drag)(surface area)(velocity) 2
I determined a .10 - .11 coefficient of drag for *P. cartilageneum*.
Most algae are in the .25 - .99 range, and a plastic bag has a coefficient
of drag of .05. I attribute the relatively low value for *P. cartilageneum* to
streamlined shape and a high degree of flexibility.
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