Interested in my mathematics blog? That's kind of you; you can find the RSS feed here. I didn't do anything with it this week, so no sense making you stare at that, though. Over on the other blog I looked at 60s Popeye: Popeye and the Herring Snatcher (it's Brutus, you think Sea Hag is going to steal fish?). Now let's get back to looking at water going down fast.

The plaque marks the site of Table Rock, a bare rock shelf hanging about 60 meters/200 feet out from the rest of the landscape, left behind when the Horseshoe (Canadian) Falls receded from it. They blasted it off in 1935 for safety reasons that I don't understand, but the plaque notes there were rock falls shrinking it in 1818, 1828, 1829, 1850, and 1934.

And here we're finally above the level of the Falls ... for now. The falls are receding at the surprisingly rapid rate of about one foot per year, so, in something like 50,000 years they'l reach Lake Erie.

The Falls looking like a discontinuity in the landscape here.

And a closer look to see the Falls looking like the edge of the world.

Just a few feet up you have water where you'd barely know there was trouble apart from the constant roar and people hollering at you.

Someone trying to capture the majesty of the Falls on their phone ... and me getting a picture of that. What makes this art is that I lined up the top of their phone with the fall line.
Trivia: One-pound tins of baking powder were, in the 1880s, the first store-label brand item sold by the A&P supermarket chain, and may be the first private-label sold in any grocery store; certainly the first in a national chain. Source: Grocery: The Buying and Selling of Food in America, Michael Ruhlman.
Currently Reading: Escaping Gravity: My Quest to Transform NASA and Launch a New Space Age, Lori Garver. Lot of talk about the Genius of Elon Musk and considering this is someone who's had multiple encounters with Stretch you'd think she'd be wise to him but, no, she seems sincere about it.