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  1. Prikvačeni tweet
    11. stu 2018.

    A meta-thread of some of my favourite Twitter threads!

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  2. . points out that I misread the dates (June -> July): the vaccination was done a month later. Still extremely impressive, but not at the same level. I'd delete the original, but at this point it seems better to put this correction here.

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  3. prije 1 sat

    In some sense the climate and energy community are engaged in their own civilization-scale project: they're building models of the world 50, 100, even hundreds of years in the future; they're building a culture around that understanding; and they're taking action.

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  4. prije 1 sat

    A very partial and incomplete list: (Thanks everyone who contributed!)

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  5. The Cape Grim Air Archive, archiving air since 1978! HT

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  6. The Central England Temperature series, from 1659 to today: Compiled after-the-fact in the 1950s by Gordon Manley. (Also fun to read about are modern Stevenson Screens, designed for more reliable records: )

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  7. LIGO took ~50 years. I cannot conceive of how you would set out, circa 1970, to achieve a strain sensitivity of 1 part in 10^22. But they did it.

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  8. Just a general comment: y'all are incredible. I'm gettin' ratio'ed here, and it's a privilege. Thanks!

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  10. Interesting to divide responses into two types: strongly goal driven (eg the Gaudi Cathedral, Shinto Shrines, Framingham) versus more undirected / local (eg population growth, University foundation). Both very interesting, in very different ways.

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  11. Curious: are there examples of goals / projects that are easy, almost trivial to do over a very long period, say 100 years (or 1,000 years), but impossible over 10 years? Eg a scientific question that's trivial to answer over the longer time frame, but imposs over the shorter?

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  12. Ditto the famous Keeling experiment carried out measuring CO2 (and now other gases) on Mauna Loa since 1958: Now run by Charles David Keeling's son Ralph!

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  13. ... some air from 1972, to see what was happening then". And they can just give it to them. Incredible!

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  14. I am lacking the right keyword, but I went to a great talk once where someone talked about an _air archive_. Basically, they went outside every day, starting in the 1960s, and bottled up some air, for decades(!) Then, after the fact, people can say "Oh, I want to analyze...

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  15. The Framingham Heart Study is now in year 72:

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  16. There is, of course, the Clock of the Long Now,

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  17. Not quite a project, but Kongo Gumi was a construction company that ran for nearly 1,500 years, before (very sadly, IMO) being acquired in 2006:

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  18. The Pitch Drop Experiment, to demonstrate that pitch is really a liquid which flows, is closing in on 100 years: (I used to walk past this every day - my office was in the same building!)

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  19. Many incredible cathedrals, of course. Eg Notre Dame, over 1163–1345: Or the Sagrada Familia, ongoing (!)

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  20. The proof of Fermat's Last Theorem involves an incredible amount of mathematics over many decades, and in some ways centuries:

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  21. What are some examples of marvellous projects human beings have undertaken that took ~ a century or more?

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