Clocks in Gravitational Field

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    \left\}\rule[-4mm]{0mm}{8mm}\right.\leftarrow
    \Delta\tau = 2T_{Cs}\mbox{(lokale Uhr)}
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  \put(98,50){\makebox(0,0){$\leftarrow$ \emph{Explosion der 2. Uhr}}}	  
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    \hskip1mm\leftarrow\Delta\tau = T_{Cs}\mbox{(lokale Uhr)}$}}	  
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  \put(17,35){\makebox(0,0){ \emph{Start der 1. Uhr} $\rightarrow$ 2$A$}}	  
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               { 2$B \leftarrow$ \emph{Start der 2. Uhr}}}
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