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hooper

HN member
Joined
Mon, Dec 23, 2013, 8:27 AM UTC
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22
Public activity
18 items

About hooper

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Recent public activity

  1. comment
    Comment #48262472

    It's interesting that even clear advantages like `jj undo` are hard to communicate because of this.

  2. comment
    Comment #45085649

    Jujutsu has "first class conflicts", but it's different from Pijul's "theory of patches". As far as I know, the other big stuff like "working copy is a commit" and the "operation l…

  3. comment
    Comment #43613448

    This immediately played in my head when I read the headline.

  4. comment
    Comment #42733672

    One thing I really appreciate is that you can run `jj new master` at _any_ time to drop what you're doing and start a new change. The way jj handles the working copy, conflicts, an…

  5. comment
    Comment #41494051

    Part of this that hasn't been mentioned is that the mirror is thicker than you might expect. The observatory's website says 12.5 inches (though it will vary somewhat across the cur…

  6. comment
    Comment #40351747

    If you're trying to do it all in software, you can get pretty far with a function to draw a solid colored triangle, a function to rotate 3d points using sin and cos, and some loops…

  7. comment
    Comment #40269969

    The image from a single curved mirror or lens will have distortions that can be reduced by adding additional curved mirrors/lenses. It's also harder to make and use large diameter …

  8. comment
    Comment #38621309

    The sun is about 400,000x the brightness of the moon, with about the same apparent size. So I think the full moon's brightness concentrated 100,000x would be almost that bad. Howev…

  9. comment
    Comment #38272288

    The debris orbits from an initial collision don't have to be stable to allow a chain reaction that produces debris in more stable orbits. Debris from even a single low altitude col…

  10. comment
    Comment #38261988

    Debris orbits like anything else. Regardless of the orbits of the colliding objects, the orbit of any debris is only really constrained to intersect the point of collision. For som…

  11. comment
    Comment #37814877

    If considering a trip to this area, be sure to read about McDonald Observatory's star parties and especially the special viewing nights. It's one of the best places to look through…

  12. comment
    Comment #37531225

    I get the feeling that depends on who you ask at this point, but there has apparently been some recent development of the hosting platform ( https://nest.pijul.com/ ). I don't know…

  13. comment
    Comment #37519178

    One of the ideas behind Pijul is that implicit vs explicit diffs does make an important difference sometimes: https://pijul.org/manual/why_pijul.html

  14. comment
    Comment #32796879

    If your files are under version control, you already have a generic change detection mechanism that can give you a shorter list of changed files that need to be checked for formatt…

  15. comment
    Comment #26642298

    I think it's more to maintain pressure in the tank, in cases where the remaining fuel doesn't vaporize sufficiently on its own (autogenous pressurization). Otherwise, I guess atmos…

  16. comment
    Comment #26637845

    I've heard of using a gas driven plunger in fuel tanks, but I can't remember the name of the vehicle that did this. Starship uses small "header tanks" that have a similar effect. W…

  17. comment
    Comment #23558975

    No. If you look at the map you'll see that there's an equally sized coverage gap at each pole. I don't know if any reliable source has stated whether they will put any satellites i…

  18. comment
    Comment #23558903

    The data on this map makes it look like they're going for pretty uniform coverage already. Is there a source for the early orbital planes having a specific purpose? The earth rotat…