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Archive for June 25th, 2022

While working and living in Johnson City recently (see Vacation Villa), our daughter and two grandchildren came to visit and spend several nights. The children enjoyed the swimming pool, of course. We spent one long morning at two different playgrounds. One had adult exercise machines. I was sore the next day.

The day before, Mamaw, Mother, grandchildren, and I went to the Hands On Museum and Gray Fossil Site. It was fun and informative. The Hands On part had many of the exhibits from years ago when we had visited it. They are good exhibits, but some need repairs, and all need educational explanations to make them, well, educational, as opposed to merely fun.

There were two new exhibits that were well done. One was the presentation of fossils found at the Gray site. It had been a sinkhole that had collapsed. I don’t accept the long time scales, and it very likely collapse in the Worldwide Flood of Noah’s day, but the variety of fossils and depictions of flora and fauna of that time were good. There were Mastodon and Tapir bones, the latter being in more profusion that any other fossil site. There was a new species of hickory tree found in the fossilized muds. Types of fossils were well explained along with small samples well exhibited with good convex lens for viewing.

The second good exhibit was one of the best combinations of hands on and technology I had ever seen. So many techy exhibits are glitzy and purely spectatorial. This one taught by doing and interacting with the both the very tactile sand and constantly adjusting video. The exhibit consisted of an approximately 4 1/2′ x 5′ sandbox with a detector/projector above that measured the distance to the sand and projected contour lines and elevation colors onto the sand. As you move the sand into a pile or scoop it out, the system adjusts the contour lines and colors almost immediately. Children and adults alike had trouble pulling their hands out of the sand. With hand above any spot, moving one’s fingers, the projector produced what looked like a lava flow that persisted for 10 seconds or so. I think they could up the game even a bit more by providing a map legend of contour lines and intervals and elevation colors for educational purposes.

We of course enjoyed time with our daughter and the grandchildren. While they were there, my granddaughter and I finished our reading of the Chronicles of Narnia which I had been reading to her over Duo (a video chat format for Android) for about six months. It was quite the enjoyable time. Check out a few pictures at Hands On and Gray Fossils.

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