A history of animation in museum exhibitions would be interesting. Ray and Charles Eames made a few in the 50s/60s. Expo 67 had loads. I imagine the 64 World's Fair had its fair share. At The Ink Tank we produced a series of nice little films for the Harry Truman Library. That was the late 90s.
These, from the Franklin Institute, aren't the greatest examples but they do show the pervasiveness of animation and hint at it's effectiveness in exhibits.
My one fear is that the bad fire cycles will turn young minds off from animation.