Friday on Modern Art Notes: Museum of Contemporary Art San Diego curator Robin Clark and photographer Philipp Scholz Rittermann sat for one hour at the MCASD to protest the Chinese government’s detention of Ai Weiwei, yesterday. They participated in the museum’s “Sit for Solidarity,” a 24-hour sit-in that both protests China’s treatment of Ai and raises awareness about it. Click here to read Modern Art Notes’ post to learn more about the protest — and to see how what MCASD did is different from what the Virginia Museum of Fine Arts is doing.