Michael Collins @collinscentral

Brand builder. Former photographer. collinspics.com Washington, DC Joined June 2010

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Michael Collins @collinscentral

12 hours ago

@wmataGM @wmata Is there anything Metro can do about these situations?reddit.com/r/nova/comment… Just this week a friend told me he stopped using the Herndon station because it had gotten too dicey.

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Michael Collins @collinscentral

a week ago

@jamiegrove @MCFlashdance I generally saw anything that broadened access to good imagery as a positive, even if it might reduce the demand for my services. That said, it is wild to see AI coming for hard tasks I used to be elite at. It would have accelerated my work, but also raised some existential q's.

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Michael Collins @collinscentral

a week ago

@jamiegrove @MCFlashdance Yeah, I've thought about that too, including how I would have felt about it. Lots of pro photographers are reflexively anti-competitive—hostile to newbies, low-priced competitors, iPhone cameras, Unsplash, AI, etc. I'm generally a tech optimist, and…

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Michael Collins @collinscentral

2 weeks ago

Great stuff.

Varun Anand @vxanand

4 weeks ago

We instituted an official AI Writing Policy at @clay. Massive thanks to @sophiebits on our engineering team who wrote this. Originally this was just for eng, but other teams found it so helpful we expanded it company-wide. Here are the four guiding principles: 1. You must

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Michael Collins @collinscentral

2 weeks ago

@mhamann You are at Maxwell? I spent several weeks a year there as a child.

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Ryan Healy @HeyHealy

2 weeks ago

Today I'm coining a new internet slang term: ai;dr AI, didn't read. Start using this to reply to comments that are obviously written by AI and watch what happens.

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Michael Collins @collinscentral

4 weeks ago

@TheCornDog When the menu looks like this you know you have made a good choice.

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Michael Collins @collinscentral

a month ago

@TheCornDog @BJUedu Same. College is such a great place to get in reps. I had spoken to audiences dozens of times before I ever needed to do it in a professional/adult context. The same holds for other leadership competencies. College is a low-stakes place to practice and learn.

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Michael Collins @collinscentral

2 months ago

@jnack Oh man, that’s tough. Prepping myself for this in a few years. 🥺

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Michael Collins @collinscentral

3 months ago

@TPCarney Fun read. Does the kudzu cross the property line? It seems like you will need the participation of your neighbors to really keep the kudzu at bay. That's certainly been my experience with managing weeds in the lawn.

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Michael Collins @collinscentral

3 months ago

@leylaaa31 4th of July on the Mall

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Aakash Gupta @aakashgupta

5 months ago

That water clarity is an engineering decision, and the math behind it is wilder than the video. Roman aqueducts ran on gravity alone. No pumps, no pressure systems. Engineers carved channels with a gradient so shallow it borders on absurd. The Pont du Gard in southern France drops 2.5 centimeters over 275 meters. That's roughly the thickness of a coin over the length of three football fields. They surveyed that accuracy with plumb lines and wooden leveling instruments. The clarity you're seeing is a direct product of flow velocity. Too steep and the water erodes the channel walls, picks up sediment, turns brown. Too flat and it stagnates. Roman engineers targeted a slope of about 20 centimeters per kilometer, which kept the water moving fast enough to stay fresh but slow enough to stay clear. Before the water reached the city, it passed through multi-chamber settling tanks where velocity dropped near zero. Suspended particles sank. Clean water flowed out the top into the next chamber. Repeat three or four times. Pliny specified the minimum slope in writing. Vitruvius published the exact mortar ratio for hydraulic cement: one part lime to two parts volcanic ash for underwater work. The pozzolana from Pozzuoli reacted with water to form a calcium-aluminum-silicate compound that actually gets stronger the longer it sits submerged. Modern concrete degrades in water. Roman concrete bonds with it. Scale the whole system and it gets harder to process. Eleven aqueducts fed Rome at its peak. Combined output: roughly 1 million cubic meters of water per day. That works out to about 250 gallons per person for a city of one million. Modern New York delivers about 125 gallons per person per day. Ancient Rome had access to double the per capita water supply of the largest city in the United States, running entirely on slope and stone. The Trevi Fountain in Rome is still fed by one of them. Two thousand years, same source, same gravity, same water.

Ulises @UlisesDavid__

5 months ago

🚨| La claridad de un acueducto del imperio Romano, de hace 2000 años

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Jarrett Walker @humantransit

6 months ago

Automated (driverless) operation of rapid transit is routine in many countries but no existing US rapid transit line has been converted to driverless. It could unlock a lot of frequency! Looks like @wmata in Washington DC will be the first.

Tom Roussey @tomroussey7news

6 months ago

Metro‘s board expected to vote Thursday on budget that includes plans to make the Red Line fully automated to the point where trains could run without operators. Platform screen doors would be installed at Red Line stations. Expansion to other lines would depend on funding #wmata

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Michael Collins @collinscentral

6 months ago

@ebloch @scottlincicome @LynAldenContact She was his wife for 59 years; that’s not her age.

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Michael Collins @collinscentral

7 months ago

@mkobach I’ve watched another version of this video on instagram multiple times and it gets me every time. I’ll miss these years when they are gone.

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Michael Collins @collinscentral

8 months ago

@Scholars_Stage It's funny to me how disdainful other economists are of Cowen (and others at GMU). They think he is wasting his time popularizing economic ideas and that peer-reviewed publications are the only real game. I'm a big fan of his multi-front intellectual blitzkrieg approach.

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Will Manidis @WillManidis

8 months ago

typos are increasingly proof of work for humanity

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Michael Collins @collinscentral

8 months ago

@Nicolascole77 Books

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Michael Collins @collinscentral

8 months ago

@craftian_keskin Was this made with Midjourney? Or something else?

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Michael Collins @collinscentral

8 months ago

@barrysvrluga @PostSports If anyone was being retained as a cultural sports columnist—or whatever they called it—I thought it would be you. I held the Post Sports section in such esteem. I knew your names, looked forward to your perspectives. I'll always be grateful for the stellar 2019 WS coverage.