%%%%
% Optical illusion
% Do you look from the cylinder from the right or from the left?
% Author:Vicky
%
\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[line width=1mm]
\draw (1,1) circle (3cm);
\draw (1.8,1) circle (3cm);
\draw (2.6,1) circle (3cm);
\draw (3.4,1) circle (3cm);
\draw (4.2,1) circle (3cm);
\draw (5,1) circle (3cm);
\draw (5.8,1) circle (3cm);
\end{tikzpicture}
\vspace*{1cm}
\newline
\textbf{\textcolor{green}{Do you look from the cylinder from the right or from the left?}}
\end{document}
