Well, we’re still working through Trust. Today we were concentrating on optical illusions (which we also touched on in the “Eyesight” section of Attentiveness). We studied the works of Escher and Salvador Dali, which are so mind boggling and fascinating. I love being able to share these great works of art with the girls, and I love having access to the Internet, which makes it so easy to achieve this sharing of knowledge.
We also created a thaumatrope. Ever heard of one? It’s pretty interesting, and at first it completely failed (as my science experiments tend to do), which was disappointing. However, once again the Internet came to the rescue. I found this website, which gave us an explanation of thaumatropes that we could understand, some simple experiments, and a shorty video tutorial.
We also found this website, with a list of animated GIFs, which perform the same illusion as the hard copy thaumatropes we made, but with fewer human errors. 🙂 . Random Motion was very useful in its definition and experiments, which even I managed eventually.
The thaumatrope was invented in the 1820s and it proved the phenomena of persistence of vision. The word “thaumatrope” has Greek roots. “Thauma” means magic in Greek and “trope” refers to something that turns. The thaumatrope is somewhat magical because it creates illusions dependent on persistence of vision.
And finally, DH came home and did his Daddy-trick, in which he just looks at a science-y thing and it works. So all of our thaumatropes worked and the girls had a good idea of how easily the eyes can be deceived. A good day for science and discernment, methinks.