This was a demonstration of different cranks made out of paper, as well as tricks our eyes play on us. In conjunction with this exhibit was a harmonograph, which according to Wikipedia, is a "mechanical apparatus that employs pendulums to create a geometric image." It was really neat to watch and Sam and Rachel each got a drawing.
Next to that exhibit was one featuring Lego Robotics. This was right up Sam's alley. He loved getting to steer the remote control Lego vehicle and I enjoyed talking to the person in charge about the various camps they offer. We might send Sam to one of them next summer because I think he would LOVE it! I just wish we could sign him up for Brick Works Academy this year but unfortunately he is too young still. Rachel enjoyed playing with Snap, The Lego Dragon.
When I called to find out what this demonstration was all about, the women I spoke with mentioned there would be a robot there. Sam was super-excited about this possibility, and Rachel, who has seen Franklin's Robot and is freaked out by it, was quite nervous about it. Eventually she warmed up to it though and we spent about half an hour playing with Nao, the robot.
Nao can sit down, wave hello, do Tai Chi and Namaste, go for a walk, and talk.
The purpose of this event was to showcase women in science and provide role models for young girls. I think Rachel would make an excellent scientist -- she is curious, stubborn and doesn't take no for an answer. She just may have to avoid robotics as her field of interest :)