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\usepackage{amsmath,amssymb}
\usepackage{graphicx}
% vertical separator macro
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% align spacing
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\title{My Talk}
\author{Max Musterman}
\institute[University of Vienna]{Faculty of Physics, University of Vienna}
\date{\today}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\begin{frame}
\frametitle{Slide 1}
\begin{columns}[T]
\column{0.5\textwidth}
Left column
\begin{itemize}
\item Item 1
\item Item 2
\item Item 3
\end{itemize}
\column{0.5\textwidth}
\begin{block}{Right Column}
this is a block
\end{block}
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\end{frame}
\begin{frame}
\frametitle{Slide 2}
erster Satz\\
zweiter Satz
\pause
dritter Satz
\end{frame}
\begin{frame}
\frametitle{Slide 3}
\uncover<1>{erster Satz}\\
\uncover<3>{zweiter Satz}\\
\uncover<2>{dritter Satz}
\end{frame}
\end{document}
