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adeledeweylopez

HN member
Joined
Mon, Aug 10, 2015, 10:09 PM UTC
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82
Public activity
21 items

About adeledeweylopez

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Recent public activity

  1. comment
    Comment #27228039

    That's probably because they are 3D printed prototypes. He says in the link that they're working on creating the molds for injection molding.

  2. comment
    Comment #27015382

    Sure, but when urgency suddenly became necessary, mRNA technology was pursued quickly, which indicates that we already knew it was promising.

  3. comment
    Comment #26462141

    Hitler was not good, much less great, for technology. Germany was the scientific center of the world before the Nazis took power, so their successes are mostly attributable to iner…

  4. comment
    Comment #25215475

    Everything on that website is good like that, but unfortunately I wish I had more like it to recommend.

  5. comment
    Comment #25215460

    Yeah, it is different, but once you know what you're after you can measure. It's a "type error" to ask for the number of bits of entropy in a baseball, but if you ask for the bits …

  6. comment
    Comment #25203462

    Yeah! You can derive the second law from "conservation of information". This is a great resource about thermodynamics which goes into some of these ideas: http://www.av8n.com/physi…

  7. comment
    Comment #25203390

    Entropy is a measure of the uncertainty that an observer has over the microstates (i.e. the exact state of every atom) given their knowledge of the macrostate (i.e. what they are c…

  8. comment
    Comment #24411120

    And they're getting bought by Intuit (TurboTax)...

  9. comment
    Comment #24381807

    One of the major aims of physics is to try to describe reality with mathematical constructs. If you start with what can be directly observed or experienced, then that's phenomenolo…

  10. comment
    Comment #24381441

    "The Many-Worlds Interpretation has it that each time we make a measurement, reality splits into several alternative versions, identical except for the measurement outcome." That's…

  11. comment
    Comment #24347048

    Memory engrams are thought to be DNA methylation patterns in a neuron's DNA. http://learnmem.cshlp.org/content/23/10/587.full https://www.nature.com/articles/s41467-020-14498-4

  12. comment
    Comment #24164689

    Nope, black holes have entropy proportional to the surface area of their event horizon. So the more stuff they engulf, the more their entropy increases, and thus they satisfy the 2…

  13. comment
    Comment #23987413

    The Bullet Cluster ( https://en.wikipedia.org/wiki/Bullet_Cluster ) is a big reason why: it's a collision of two clusters of galaxies. We can see where the gas and stars are, but g…

  14. comment
    Comment #23743037

    But we know that is very possible to do already, via relativistic effects.

  15. comment
    Comment #23621129

    I think it's just because hispanic people are poorer and thus more likely to be essential workers.

  16. comment
    Comment #23253658

    Honestly I think that will be harder for this kind of system than writing this sort of code. It takes a certain kind of creativity to think of ways that code could potentially fail…

  17. comment
    Comment #22843572

    As a teen, I was obsessed with knot theory, and Conway's knot notation always felt like magic to me. The notation works by counting the number of twists in a segment, and then look…

  18. comment
    Comment #14070261

    For women considering Modafinil, note that it interferes with hormonal birth control.

  19. comment
    Comment #13761972

    Terry Tao has a really great post where he depicts group actions (every Rubik's cube move sequence is a group action) as arrows in a graph, and with this picture, commutators can b…

  20. comment
    Comment #13640207

    Keisler has a introductory text book (available free here: https://www.math.wisc.edu/~keisler/calc.html ) that uses non-standard analysis, which he claims is easier for beginners t…

  21. comment
    Comment #10037769

    It seems like they address this issue as well: "Another key advantage is that most of the solid blanket materials used to surround the fusion chamber in such reactors are replaced …