science deniers: We live on a Flat Earth. geospatial developers: I wish the Earth was Flat.

I had no idea! More pictures and background here: www.english-heritage.org.uk/visit/inspir...

Aftershock!

Just got my Covid vaccine booster at CVS

Why I really wanted to get the 1857 and 1869 topographic contours and waterways reconciled correctly, and also why it didn’t really matter if I got them reconciled correctly

what ... WHAT

So many endocrinologists were skeptical of this. I'm glad there's something on the record, finally. I was stalled out with growth for years and then added a cup size fairly quickly upon finally adding prog.

A Hard Day’s Night (2025)

Dear self, IT DOESN'T MATTER. You do not actually need to completely and correctly reconcile the 1857 topographic contours with the 1869 contours

What I'm imagining is that the north end of the Bernal Cut more or less corresponds to natural drainage, but that the south end cuts perpendicularly across a natural southeastern flow near Milton and Cuvier Streets. Does that seem believable?

I posted online the 2023 essay that was available as a Shift Happens booklet before: The convoluted history of Return and Enter on keyboards. aresluna.org/the-day-retu...

The submissions for the new Massachusetts seal, flag and motto are up, and my friends, they are a *trip* www.mass.gov/doc/massachu...

niche "working on a geospatial software dissertation" joke: dying every time the transcription software calls the primary open source geo conference "Phosphor G" which I imagine is Bill Nye's rapper persona

Ever needed to simplify street networks? I did. And it is a pain. So we wrote an algorithm that does that for us. And can do for you, as it is available as a Python package called `neatnet`. Here's a short blog about it - martinfleischmann.net/simplificati... and package - uscuni.org/neatnet

I don't get why the Mission Creek tributaries would have flowed along the paths shown on the 1857 topo (left) rather than following the contours downhill (right), especially the part running south on future Douglass Street. Was it culverted?

Flux-Kontext-Max: So good at pulling apart map layers, but also so maddeningly inconsistent

Here’s what the new CA plan looks like to our model btw: planscore.org/plan.html?20...

Mission Bay Aerial, 1956 I went to the National Archives in San Bruno & scanned aerial views ringing San Francisco Bay. This 1956 shot helps my research immensely because (just look at it) so much has changed. Notable here are the SP & Santa Fe railyards, Western Pacific Tunnel, Pier 70 #sfhistory

Commitment to the bit, as they say

I did not know that there's been recent progress on shortest paths, of all things!

One old mystery solved: the big full-intersection-style curb cut that used to be next to that old house on 15th St near Dolores 25 years ago was there because a hundred years before that there had been a street there, Aileen Avenue. San Francisco Sanborn map, vol. 2, 1899, Sheet 201

Where we're going, we don't need roads

Here's the actual link: abcnews.go.com/Politics/sup...

I miss map twitter. How did Mission Street cross Islais Creek before the Viaduct was built? Was the Alemany canyon only really deep to the east of Mission, and relatively flat to the west, like it looks on the 1869 topo?

Anyone know a good method for vectorizing raster contours? (Hand-drawn contours, not a DEM)

Puzzling over elevation contour topology errors in the pursuit of an accurate tattoo, as one does

Hope I get free fare now

Wrote about the very neat Q1 computer from Long Island, and got to exercise my French research skills to talk about the Micral.

🚀 We just raised $15M to transform how teams work with geospatial data. AI is truly powerful to analyze, interpret and optimize data. But what if you were able to dream bigger? What if you could build apps with just a few keystrokes? With Felt AI, you can. bit.ly/40T2jKo

I wrote something new! It’s a UI design history essay about Mac’s Control Panel, and it uses emulation in some… maybe new and maybe interesting ways? aresluna.org/frame-of-pre...

I'm not doll-identified, but yes, I bought the trans beer

Transition milestone achieved: I float in salt water

Anyone else going to Trans March tomorrow?

Obviously the correct immigration policy for the US is that each resident in good standing should get five "invite codes" that refresh every two weeks

“We’re slowly going underground, underground, underground,” the mother said. “You put one thing in place, and then you have to prepare for when that gets taken away."

RIP Bill Atkinson. His fingerprints were all over HyperCard where I first leaned to program, and he’d been a friend to the 7th grade computer literacy teacher who first encouraged me to go deeper than tinkering with games and photoshop.

Living the map tattoo lifestyle

Just noticed that the "Roads and Buildings" legend thumbnail on the 1899 USGS 1:62500 San Francisco quad specifically depicts Shattuck and Claremont branching off Telegraph

CRAZY MOUNTAINS

BREAKING: The U.S. Mint has made its final order of penny blanks and will stop producing the coin when those run out.

Raster just got 10x faster to work with thanks to Felt's powerful new raster infrastructure release. Now you can seamlessly connect your buckets to the browser, where they can be streamed, indexed and styled in one performant platform. Click, click, done.

q-tip says hi

Struggling to tell the difference between "maybe I don't like food any more" and "maybe that one jar of spaghetti sauce wasn't very good"

Is it possible to buy progressive lenses for glasses that have a giant area for medium distance occupying most of the lens, with just a little stripe of distance at the top and of close reading distance at the bottom?

NOAA just announced a long list of datasets that are going away🧪⚒️🌊: www.nesdis.noaa.gov/about/docume... Download what you need asap and send comments to: [email protected]

I spent two days playing with all of these new Felt capabilities last week and it was AMAZING. Felt Scientists have distilled the essence of Felt and put it in a bottle.