I was struck by a recent “heart” post from
Corinne — probably in
November — and seemed to recall that my college calculus book had an analytic expression that graphs as a heart shape. So I went to my bookshelf, but did not see
my college textbook. I found the blue book in the photo, pulled it out and looked up
cycloid in the index.
While a cycloid is the top part of a heart shape, what I found in the blue textbook
didn't “look” right. I haven’t referenced my college calculus book very often in the last three or more decades, but I just didn’t feel mentally “comfortable” looking in the “other” textbook I had picked up somewhere over the years. So where is
my college calculus book?? Surely I didn’t get rid of it. It didn’t take long before I found
my textbook and everything
looked right.
And that’s the point of this post. The memories we construct are often more detailed than we think. Reading a book, we sometimes have to go back and remind ourselves about something we’ve already read but didn’t necessarily think it was going to be important. We have a sense that it was on a left-hand page, or it was at the bottom of a page, or the page had a coffee splatter on it. As the title of the post says, the brain is so fascinating.
Note. I'm sure many of you were going to correct me, but “
cycloid” was the wrong term to search. A heart-shaped curve is called a
cardioid. Isn't that clever? And for Corinne and others, you’re welcome to focus on the graphs here:
heart curves.
And by the way, my textbook? The tan one above: $11.95 (used) in fall 1974.
Looking back
1 year ago:
No post
2 years ago:
No post
3 years ago:
“More with displays…”
4 years ago:
“Painting done. Carpeting next.”
5 years ago:
“Ginkgo biloba (seedling)”
6 years ago:
“Lipstick plant”
7 years ago:
“Identity in flux…”
8 years ago:
“Wall shadows”
9 years ago:
“Bleak?”
[ PXL_20201120_203933434.PORTRAIT-01.COVER_e065cwS105x70tm :: cell phone ]
The book I got rid of that I have occasionally really, really wished I'd kept was Halliday and Resnick's physics text… But it was a beast; probably 2½–3" thick. https://en.wikipedia.org/wiki/Fundamentals_of_Physics