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Viewing profile — johncarpinelli

johncarpinelli

HN member
Joined
Sat, Jan 21, 2012, 4:20 AM UTC
HN karma
179
Public activity
40 items

About johncarpinelli

Software engineer based in the SF bay area.

Arithmetic coding:

http://www.codeforge.com/read/58275/stats.c__html

My side projects:

http://jettir.com/

http://electrictakeoff.com/

Recent public activity

  1. story
  2. comment
    Comment #5550103

    I like this idea. If any rent-seeking group achieves market dominance, the government should regulate their prices. For example, the price of prescription drugs and higher educatio…

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    Comment #5548474

    Actually, the US is described as the Saudi Arabia of wind. Most of the potential is on-shore which has better economics than off-shore also. http://www.pickensplan.com/wind/

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    Comment #5509186

    There is also the option of part-time consulting to pay the bills while building the startup. As a Django consultant, this person could probably make $50k annual income by consulti…

  5. comment
    Comment #5508264

    Was the Xbox 360 really a huge success? It came second or third in sales for its generation of consoles. 75 million units in seven years is a small number compared to mobile device…

  6. comment
    Comment #5447360

    I like the Australia idea, but I'd save up $10k before departing. Relocating to another country is expensive. I suggest to find some freelance programming jobs online. He could mak…

  7. comment
    Comment #5390513

    Stefan, Lower your expectations. Be grateful for your health and living in a developed country like Switzerland. You have awesome mountains there. Startups are an escapist fantasy …

  8. comment
    Comment #5384606

    I agree that home robots will be task specific and not anthropomorphic. Examples I would buy if they were cheap: -robot to stack and unstack the dishwasher -robot wheels to put the…

  9. comment
    Comment #5384467

    Air pollution has dropped 50% judging by the chart in this article. Much better than the LA Times prediction. http://www.mnn.com/green-tech/transportation/stories/study-c... I gues…

  10. story
  11. comment
    Comment #5367173

    OK, I am sold on Go as my next language for web applications. Unfortunately, I can't throw away the existing PHP/MySQL code. Any suggestions on how to integrate Go and PHP into a s…

  12. comment
    Comment #5323283

    If it hits Mars, it could help to terraform the planet. The CO2 ice caps would melt and heat the atmosphere. It would melt a significant amount of frozen water in the soil and thic…

  13. comment
    Comment #5311980

    Yes natural gas overtook coal as the leading source of electricity in the USA. The transition was in 2012.

  14. comment
    Comment #5175217

    I enjoy driving electric too. Electric motors are quiet, clean and responsive. There are 18 models of plug-in hybrid coming to the market by 2018. I think the hybrids will sell bet…

  15. comment
    Comment #5175134

    The Chevy Volt has a data link and remote apps for IOS and Android. There's a web API that allows sites like Volt Stats to download from thousands of cars. The Chevy is not a $1500…

  16. comment
    Comment #5113901

    Let's hope they land humans on the Moon and Mars in the next 13 years. Elon has much more capital now than back in 2002. They are the most likely company to settle space.

  17. comment
    Comment #5108134

    Good point about false positives. The device could upload images to a human operator who would activate the defenses. This would add some reaction time, but it would reduce the pot…

  18. comment
    Comment #5108014

    A low-cost clone could be mounted on the ceiling in a room. Some stun grenades and tear gas would disable the shooter anywhere in the room. This would be a cheap solution. Include …

  19. comment
    Comment #5107914

    An automatic gun defense device like a smoke detector that is cheap and ubiquitous. The device should cost $100-$200 and could be installed in schools, shopping malls, cinemas and …

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  22. comment
    Comment #5089951

    We need the FDA to regulate drugs and medical devices. There's too much potential for quackery. I don't think removing the FDA is going to find a cure for diabetes. It's a fundamen…

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  24. comment
    Comment #5040665

    Totally agree. Learning object oriented frameworks gives me a headache. I learned C back in 1991 for first-year CS classes. Consider all the software built in C: Linux, FreeBSD, Ap…

  25. comment
    Comment #4924880

    This is why code changes should not be moved to production late on Friday. Staff go home and problems don't get noticed or fixed in a timely fashion.