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Viewing profile — jcchin41

jcchin41

HN member
Joined
Wed, Oct 09, 2013, 11:27 PM UTC
HN karma
61
Public activity
15 items

About jcchin41

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Recent public activity

  1. comment
    Comment #13202061

    This could also be a stepping stone to reducing Hyperloop tunneling costs

  2. comment
    Comment #10496877

    "EagleWorks" is not a recognized lab of NASA. Despite the title, this announcement comes from a (somewhat rogue) group of individuals, not the agency.

  3. comment
    Comment #9722307

    For those interested in getting a better handle on the vehicle thermodynamics, see[1]. Feel free to play around with the open-source python model here[2] [1] https://mdao.grc.nasa.…

  4. comment
    Comment #9609423

    Following Jean Luc Doumont's simple advice on creating powerpoints has dramatically helped me create more effective presentations that hold people's attention. I highly recommend h…

  5. comment
    Comment #9370013

    I work for a large aerospace company. How can we adopt lean startup ideas for hardware projects where the design iterations are much more expensive and lead times more severe?

  6. story
    Hyperloop Talk Live-Streamed from NASA's International Space Apps Challenge

    When? Saturday 4/11/15 @ Noon (EDT) Where? NASA Glenn Research Center What? https://2015.spaceappschallenge.org/ Livestream: https://www.boxcast.com/show/#/nasa-space-apps-challeng…

  7. story
  8. comment
    Comment #9223049

    http://kitepowercoop.org/ Looks like there is an open-source community around energy kites. They're largely focused soft form kites, rather than fast moving rigid wings. And anothe…

  9. comment
    Comment #9169198

    1 MILLION people aren't enough to see network effects?? Is 3M [1] closer to the magic number? I moved from Boston(4M) to Cleveland(1.7M) and although the lifestyle is different, th…

  10. comment
    Comment #8746709

    My favorite alternative: Reveal.js http://lab.hakim.se/reveal-js/#/ Simple HTML slides with snazzy transitions Warning: A common pitfall of "flashy" presentations is that even if y…

  11. comment
    Comment #8451634

    Hybrid Airships might not fair well on the particular log/log plot shown, but there are other figures of merit to be considered: Emissions, noise, necessary landing infrastructure,…

  12. comment
    Comment #7687066

    Many projects at NASA are just starting to ramp up open-source efforts, and it can be very challenging to publicly release aerospace toolsets. Give it some time to build up momentu…

  13. comment
    Comment #7000412

    NASA engineers have also released an optimization framework for the Hyperloop concept as well. It's completely open-source and written in Python. Docs here: http://openmdao-plugins…

  14. comment
    Comment #6989235

    Working on my very first web app! I'm an aerospace engineer looking to get into web development. -PushPlan, a group decision making app: https://pushplan.meteor.com/huddles/pBpn7KJ…

  15. story
    Hyperloop optimization framework written in Python

    Created by a group of aerospace engineers and computer scientists to provide a starting point for external contributions.