deletions | additions       diff --git a/Specifications.tex b/Specifications.tex  index 05b82a7..0071c77 100644  --- a/Specifications.tex  +++ b/Specifications.tex 
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\item Slider must be able to control zoom in and zoom out when a certain threshhold is reached  \item When slider is inactive, ensure other devices can be used  \item When slider is active, ensure no other devices can be used  \item Ensure that when sllider goes outside the trigger threshold, the keys for zooming will be released  \end{itemize}  \subsection{Phidget Screen for Feedback}