I recalled this week the spark that caught my eye to the wonder: In kindergarten, for the first time, seeing a magnet collecting iron filings in the sandbox. Enthralling. And then, later, in grade 7 or 8, finding a book about metallurgy. It was the flows. I was transfixed.
Image: Colour converted to B&W:
| https://commons.wikimedia.org/wiki/File:Ironfilings_cylindermagnet.svg rights: Creative Commons Attribution ShareAlike license |
