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mchannon

HN member
Joined
Thu, Mar 15, 2012, 2:59 PM UTC
HN karma
3,156
Public activity
944 items

About mchannon

Thanks for asking! I'm a real engineer (Materials, Electrical, Solar, and getting into Chemical) and I'm working on a new project in the IoT space.

Recent public activity

  1. comment
    Comment #49092191

    How about a frog gut-derived bacterium that kills all kinds of cancer cells? https://www.thefocalpoints.com/p/new-study-frog-derived-gut-...

  2. story
  3. comment
    Comment #47665958

    If you're ever going to record an interaction with people who do not want it seen by the masses that they are breaking the law, you need to ensure that you livestream it. Then you …

  4. comment
    Comment #45898175

    During 1998-2000, AOL was ordering so many free trial CDs that it locked up world production, and music CDs faced 8-12 week delays. It was rumored that certain weeks there were no …

  5. comment
    Comment #45686196

    In 1987, Paul Verhoeven predicted exactly this in the original Robocop . ED-209 mistakenly viewed a young man as armed, blows him away in the corporate boardroom. The article even …

  6. comment
    Comment #44176491

    Am thinking propane tanks. Working with those temps probably not appropriate for an office environment, but on a porch or well-ventilated garage, should economically outperform 110…

  7. comment
    Comment #44122739

    But now we have the “deathbed pardon” or the lame-duck preemptive blanket pardon, popularized by 46. Break the law all you want, long as the old boss or his successor is happy with…

  8. comment
    Comment #44005050

    The ZT (figure of merit) is an apples-to-apples number for comparing one thermoelectric material set to another. Higher is better. Bismuth Telluride is the standard and has been fo…

  9. comment
    Comment #43955545

    Having read the same book (while on the fourth floor of MDC Brooklyn of all places) I believe the conclusion I read was that they were trying to make it all work with one drop, whi…

  10. comment
    Comment #43955429

    Just wow. I think it's an uncomfortable truth that there was some good in Theranos in terms of the unfulfilled needs of society and the potential of diligent work toward realizing …

  11. comment
    Comment #43910543

    The devil's always in the details. I notice they use potassium hydroxide to treat this, and I seriously doubt merely in a catalytic capacity. That means that a lot of electrical in…

  12. comment
    Comment #43889021

    Trackers are useless when the majority of the incoming sunlight is diffuse (as is the case where you live). Trackers are useful when the majority of the incoming sunlight is direct…

  13. comment
    Comment #43881167

    I've been in solar energy as my primary vocation since the 1990's. I've built solar cars, I've built solar panels, I've installed solar panels, I've designed solar trackers. I know…

  14. comment
    Comment #43132574

    It's not sulfur so much as sulfate. It doesn't always come from mining. A huge problem with acid rock drainage (ARD) showed up when they built a freeway in Pennsylvania by merely e…

  15. story
    Ask HN: How simple can AI get before it's no longer AI?

    Am considering a YC application for my hardware startup. I notice they're all-in on AI. My startup centers on mitigating the predictably irrational nature of human beings (you're g…

  16. comment
    Comment #42974243

    I like the site. Unfortunately for this American, having a different set of standards for mathematical notation tripped a "don't these people know the difference between Hz and kHz…

  17. comment
    Comment #42921486

    The contrapositive of which is just because you’re right does not mean you are not crazy.

  18. story
    Ask HN: Unknown unknowns of startup financing through meme tokens

    I’m about to Show HN my hardware startup, but plan on raising a small amount of financing in the short term (4 or 5 figures). VC’s aren’t my favorite people and the size of my ask …

  19. comment
    Comment #42345414

    Fun fact: Sucrose, from our friends cane sugar and beet sugar, is a glucose/dextrose molecule tied to a fructose molecule. And when you digest it, you get the effects of some of ea…

  20. comment
    Comment #42345351

    This is the tail wagging the dog. Jobs' fruitarianism meant he didn't eat eggs, meat, dairy, or other sources of selenium. Fruit doesn't contain selenium. One of Selenium deficienc…

  21. comment
    Comment #42251389

    I can already type on a QWERTY keyboard way faster than I can think. That's one reason I haven't adopted a Dvorak habit. Most court reporters use software nowadays that renders the…

  22. comment
    Comment #42249574

    That's a completely different thing. Honey, for instance, has a high glycemic index. Watermelon has a high glycemic index. They will not get you fat the same way cane sugar and wat…

  23. comment
    Comment #42247318

    The article name is "Scientists are learning why ultra-processed foods are bad for you", the opposite of this thread's title. Everyone's ignoring the elephant in the room: fiber. F…

  24. comment
    Comment #42127938

    I tried "write me a 5-page EULA for a [$YOURKINDOFBUSINESS] website" on ChatGPT and it looked great. Do you want this EULA to do anything in particular for you? You could hire an a…

  25. comment
    Comment #42127456

    The writer appears to be under the impression that CO2 is not a valuable commodity. In fact, it is, so long as it's under enough pressure, and in the right place. In Montezuma Coun…