A casual conversation on our way to dinner led us to this Wall Street Journal article about Crayola’s Washable Colored Bubbles product.
Crayola figured out a way to make colored bubbles (excuse us, “bubbles of color”) on demand. This is a pretty hard problem if you understand anything about the physics of soap bubble formation; you’re talking about surfaces thousands of times thinner than a human hair. Conventional dyes won’t work, so Crayola’s invention is kind of a big deal.
Crayola’s invention also stains things. Permanently. At least that’s what some parents are claiming. (A quick look of my own at the Amazon product reviews suggests that the WSJ may have slightly overstated the number of negative reviews. Or Amazon may have pulled some.)
Why are we reminded of the classic phrase “hypergolic with such things as cloth, wood, and test engineers“?
We briefly considered picking some of this up for our younger relatives, but then had second thoughts; we much prefer our spleen where it currently is, on the inside of our body, as opposed to having it yanked out violently through our nose.