The Benham Disk drawn in Tikz

gistfile1.tex

\begin{figure}[ht]
    \begin{center}
        \begin{tikzpicture}
			\draw (0,0) circle (4cm);
			\filldraw[fill=black] (0,0) -- (4cm,0cm) arc (0:-180:4cm) --cycle;
			\draw[line width=5pt] (canvas polar cs:angle=0,radius=0.25cm) arc (0:45:0.25cm);
			\draw[line width=5pt] (canvas polar cs:angle=0,radius=0.50cm) arc (0:45:0.50cm);
			\draw[line width=5pt] (canvas polar cs:angle=0,radius=0.75cm) arc (0:45:0.75cm);
			\draw[line width=5pt] (canvas polar cs:angle=45,radius=1.25cm) arc (45:90:1.25cm);
			\draw[line width=5pt] (canvas polar cs:angle=45,radius=1.50cm) arc (45:90:1.50cm);
			\draw[line width=5pt] (canvas polar cs:angle=45,radius=1.75cm) arc (45:90:1.75cm);
                        \draw[line width=5pt] (canvas polar cs:angle=90,radius=2.25cm) arc (90:135:2.25cm);
			\draw[line width=5pt] (canvas polar cs:angle=90,radius=2.50cm) arc (90:135:2.50cm);
			\draw[line width=5pt] (canvas polar cs:angle=90,radius=2.75cm) arc (90:135:2.75cm);
			\draw[line width=5pt] (canvas polar cs:angle=135,radius=3.25cm) arc (135:180:3.25cm);
			\draw[line width=5pt] (canvas polar cs:angle=135,radius=3.50cm) arc (135:180:3.50cm);
			\draw[line width=5pt] (canvas polar cs:angle=135,radius=3.75cm) arc (135:180:3.75cm);
		\end{tikzpicture}
    \end{center}
    \caption{The Benham Disk or ``Artificial Spectrum Top''}
\end{figure}