Celery Finally Tamed by Scientists
I can’t say enough good things about this kit, from the product quality to the sci-fi storyline that guides you from experiment to experiment. It’s written as the journey a young robot takes as he learns about electronics so that he can help run a space station. Simple enough concept and they never let it get in the way of things by over-doing the story sections. There are 148 experiments, and they have you leap right in. We still know very little about the parts we’re using, but we’re using them to do very neat things. As we go, the information about the parts is slowly slipped in – but how clever of them to avoid the typical front-loading of definitions and background knowledge. After all, when you start off by pushing in 6 parts and watching as a red light alternates with a green light, you’re hooked.
This celery experiment was of Sandra’s thinking. We had made a few circuits that used water – putting wires into potted plants, for instance, to show how you can build a circuit that alerts you when the soil is drying out. Sandra has been studying ecology and plants with my father, and knew how much water was in celery. So we tried it. The light lit up. Can I tell you how much this delighted me? Probably not. I was really delighted. By the light, by the use of the knowledge she’d gained elsewhere, by the stalk of celery with blue wires coming out of it. (Tias said, “This is a little what it might be like if the aliens ever attack.” Snicker.)