xchip

65 ms·

1. 871.▲
   by xchip 9y ago

   Exactly, that is what makes the method great, because it could be us holding the wrong belief and this helps us learn too.
2. 872.▲
   by xchip 9y ago

   Thanks for the remark kelukelugames, I cannot remove the "Show HN", the edit link is not showing up. So sorry!
3. 873.▲
   Show HN: How to discuss with opinionated people using the Socratic method[video]

   38 points by xchip 9y ago|49 comments
4. 874.▲
   by xchip 9y ago

   That'd be a fair comment if atom was using 12Mb, but 3GB???
5. 875.▲
   by xchip 9y ago

   that was very kind unlikelymordant!
6. 876.▲
   by xchip 9y ago

   I'd use a technique called Street Epistemology, it does wonders with religious people. There are lots of videos showing people lowering their level of confidence after just a few questions. I recommend watching this trailer: https:&#x
7. 877.▲
   by xchip 9y ago

   Thanks for pointing this out!(I was on my phone) I just resubmitted the article https://news.ycombinator.com/item?id=14944129
8. 878.▲
   NYT: 'A Prediction: Bitcoin Is Doomed to Fail' (Nov 2013)(mobile.nytimes.com)

   3 points by xchip 9y ago|1 comments
9. 879.▲
   by xchip 9y ago

   Physics engines are like magic and it is pretty hard understand how the work even if you read the paper many times. Also physics engines are interesting not only because four the dynamics, but also for the way constraints are solved. There
10. 880.▲
    by xchip 9y ago

    Amazing post!
11. 881.▲
    by xchip 9y ago

    Thanks! :)
12. 882.▲
    by xchip 9y ago

    Fantastic, in fact I wrote because I had been trying to understand physics engines four a long time and it was super hard to follow the papers. I wrote it four learning my self and published it to help others not go through my frustration :
13. 883.▲
    by xchip 9y ago

    In fact that was one of the reasons that compelled me do write my own, because physics engines looked to me like voodoo magic. Thanks for understanding my obsession with learning :)
14. 884.▲
    by xchip 9y ago

    then yes, it is deterministic :)
15. 885.▲
    by xchip 9y ago

    All those are great physics engines. Mine is just very simple and easy to understand, hopefully it inspires other people to get into the world of simulations.
16. 886.▲
    by xchip 9y ago

    that is quite strange... the time step is always the same no matter on how the frames are rendered.... the animation should be identical
17. 887.▲
    by xchip 9y ago

    ahah, no worries it will get there! In the meanwhile you have to give me also some "suspension of disbelief" for the sake of enjoyment :D
18. 888.▲
    by xchip 9y ago

    Awesome, I didnt know about that one (still learning!), thanks!
19. 889.▲
    by xchip 9y ago

    I knew that one! is fantastic isn't it!? This is one of my favourites: https://github.com/xibyte/jsketcher
20. 890.▲
    by xchip 9y ago

    pretty cool and inspiring!
21. 891.▲
    by xchip 9y ago

    a) I know, that is still WIP :) b) There is no friction, and as Newton's First Law states "an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force" :)
22. 892.▲
    by xchip 9y ago

    :D you are welcome to add objects, make the chain longer or change gravity... Having always the same animation helps debugging. But yeah I should have added the option to add a mouse!
23. 893.▲
    by xchip 9y ago

    The animation speed is determined by a timer, this should make it run the same in all the browsers. Is the simulation nice and smooth all the time? Friction is a biggie that I need to add ASAP!
24. 894.▲
    by xchip 9y ago

    There is no friction so far but I will add it whenever I have a chance!
25. 895.▲
    by xchip 9y ago

    There is code and there is also some quick tutorials on how constraints work, http://htmlpreview.github.io/?https://github.com/aguaviva/Ph... this one shows how to solve a double/n pendulum, which i
26. 896.▲
    by xchip 9y ago

    Thanks! What do you mean by deterministic/destructive updates?
27. 897.▲
    by xchip 9y ago

    It features collisions, collisions response and hinges-constraints. I also wrote a tutorial on how constraints work (probably the the most difficult part)
28. 898.▲
    Show HN: A 2D Physics Simulator in JavaScript(htmlpreview.github.io)

    126 points by xchip 9y ago|62 comments
29. 899.▲
    by xchip 9y ago

    The comments are more useful than the article (which doesn't really address the topic)
30. 900.▲
    by xchip 9y ago

    Physicist here, I am sad to say that all the theoretical physicists I know are teaching physics/math to first year undergraduates. What a waste of smart people. All the jobs they could do are already taken by very old people(+65) that