mhartl

42 ms·

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by mhartl 13y ago
The OP is right that Vitamin D deficiency is common, and D3 supplementation is a good idea for almost everyone. It's super-easy, too; if you don't like taking it every day, you can actually take a big dose once a week because it&#
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by mhartl 13y ago
The bullet was deformed: http://i171.photobucket.com/albums/u320/ranb40/firearms/Notp... Oswald used full metal jacket ammunition designed for piercing targets, and post-impact deformations for such bull
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by mhartl 13y ago
People can't multitask, at least not nearly as well as they think: http://www.npr.org/blogs/health/2013/01/24/170160105/if-you-...
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by mhartl 13y ago
So much of the conspiracy theorists' case rests on the "magic bullet" that you'd think its definitive refutation would have chastened them. Perhaps my favorite source is this video, which uses the Zapruder film and compu
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by mhartl 13y ago
*its extremely profitable
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by mhartl 13y ago
Please forgive the pedantry, but I'm on a one-man quest: s/it's full potential/its full potential/. P.S. Congrats on getting into YC!
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by mhartl 13y ago
Two quick notes: 1. s/for it's time/for its time/ 2. Instead of using _underscores_ for emphasis, on HN you can use asterisks, like this : asterisks, *like this*
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by mhartl 13y ago
Which underlying principles do you have in mind? I might use any suggestions you have to augment the next edition. By the way, though the feedback on the inclusion of TDD has generally been positive, it can get tedious, even for me. I do ho
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by mhartl 13y ago
Agreed. The confidence and maturity it takes to make this kind of statement is a positive sign, and I'd bet the YC partners interpreted it as such.
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by mhartl 13y ago
This year at Burning Man, I happened to notice a car with the California state license plate "TUVA". I recognized it as belonging to Ralph Leighton, Feynman's close friend and author of Surely You're Joking, Mr. Feynman
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by mhartl 13y ago
You definitely meant [ past ]( http://www.dict.org/bin/Dict?Form=Dict2&Database=*&Query=pas... ): Past \Past\, prep. 1. Beyond, in position, or degree; further than; beyond the reach or inf
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by mhartl 13y ago
Excellent summary. N.B. *Its main claim, its core functionality
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by mhartl 13y ago
*its ilk
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by mhartl 13y ago
Another thing to know is that computer science != computer programming . In some cases, students can get through four years without becoming really proficient in any one language, and can largely escape things like version control syst
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by mhartl 13y ago
Congrats on the launch (even if teh Internets did it for you)!
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by mhartl 13y ago
Glad to hear it. :-) I'm working on a publishing platform that makes it easy to produce and sell Rails Tutorial–style products. If you'd like to get involved, just send me an email (address in profile) and I'll add you to the
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by mhartl 13y ago
The Ruby on Rails Tutorial ( http://railstutorial.org/ ), conceived as a 4-Hour Workweek –style product business, makes low five figures per month, requiring just about the proverbial four hours of work per week (mostly mino
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by mhartl 13y ago
To be fair, Watsa is a current RIM investor and a former board member. That suggests he probably has a good idea of what he's getting into.
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by mhartl 13y ago
Heh. I've been using the same asteroid example for years.
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by mhartl 13y ago
This basic argument could be used against any new technology, ever.
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by mhartl 13y ago
Obligatory XKCD: http://www.xkcd.com/1235/
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by mhartl 13y ago
It's a nice quote, but I'd change "smartest" to something like "wisest". Many smart people are quite stuck in their beliefs.
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by mhartl 13y ago
I couldn't figure out a way to go back a slide—very frustrating.
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by mhartl 13y ago
PG makes the comparison explicit later in the essay: "There are many analogies between fundraising and dating, and this is one of the strongest. No one wants you if you seem desperate. And the best way not to seem desperate is not to
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by mhartl 13y ago
Take another look. It's not just an ASCII animation; it's the source code that produces the animation .
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by mhartl 13y ago
*its own
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by mhartl 13y ago
Sorry, I meant to say "still hasn't authorized".
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by mhartl 13y ago
It turns out the publisher still has authorized PDF sales. I'm not in line to get royalties, so it's not my problem, but I still hate to see a missed opportunity.
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by mhartl 13y ago
Thanks. The Feynman Lectures IP is a treacherous minefield, and it took a lot of effort even to get this far. I'd love to see a Creative Commons license, but I'd be surprised if it happens. I try to emphasize to the interested p
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by mhartl 13y ago
Thanks! I don't know what their plans are. There is PDF version, but I can't find it anywhere (well, not a legal one). I'll look into it.

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