The James Webb Telescope launched today, to study primordial galaxies
Can giant ichthyosaur fossil shed light on whale development?
The reality of “imaginary” numbers — discovery, not invention
Over at YouTube, there is a bit of history of Math, on study of cubic functions — and yes there is as usual, some less than exemplary detail — that led to the “invention” of imaginary numbers: Now of course, I contend that this was discovery not invention (I often don’t buy Veritas Sum’s narrative, but here is a way to see the story). In News’ thread on i, I commented at 33: your definition [– Eugene at 8: “there exists such a pair of real numbers (0, 1) that (0, 1) * (0, 1) = -1, where “*” is the specific multiplication rule defined for these types of pairs” –] is tantamount to describing the role of sqrt – Read More ›
50 Christmases Later
December 19, 1971 was a Sunday, the last one before Christmas. I was ten. My sister was eleven. We went with our family to the evening service at Trinity Baptist Church in Boyd, Texas. After services my parents left us with a group that was going Christmas caroling. We never made it to the first house. Our church was on the highway on the western edge of town. Our group of about 20 carolers walked along the side the highway toward the first neighborhood a few hundred yards away. The leaders were in the front and back of the group. My sister and I were with the kids in the middle. My memories of what happened next are episodic. I Read More ›