deletions | additions       diff --git a/Swimmers.tex b/Swimmers.tex  index 904c298..7b8ec73 100644  --- a/Swimmers.tex  +++ b/Swimmers.tex 
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\item Then consider a single active swimmer in a concentration gradient. Get superposition of two behaviours?  \end{enumerate}  %%==============================================   \vspace{1cm}  \subsection{Answers \& Details}  \subsubsection{Diffusio-phoresis}