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  \begin{tabular}[#1]{@{}c@{}}#2\end{tabular}}

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	Galilei-Trafos & \specialcell{Lorentz-Trafos\\$\mathbf{v}=(v_x, 0, 0)$}
\\ \hline \\
	\specialcell{$x'=x-vt$\\ \\$y'=y$\\ \\$z'=z$\\ \\$t'=t$} & 
	\specialcell{$x'=\gamma(x-vt)$\\ \\$y'=y$\\ \\$z'=z$\\ \\$t'=\gamma(t-\dfrac{v}{c^2}x)$}
	
\end{tabular}
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