kamens

10 ms·

91.
by kamens 14y ago
I'm not sure what you mean. Do you mean "why would a team choose EC2 over App Engine?" I never claimed that you are unable to do anything specific on App Engine.
92.
by kamens 14y ago
That's exactly my point in the post. This won't break down in App Engine's datastore, which is unique. We don't have to worry about it, because performance scales with the size of each query's result set, not the size of our data. On any ot
93.
by kamens 14y ago
No, but I'm counting our indexes which store tons and tons of denormalized data (Google counts these when assessing datastore size). If you completely ignore all indexes, we're at 1TB (but even that includes some denormalized data).
94.
by kamens 14y ago
Email me your daughter's email address used on Khan and tell her to keep her eye out for a special badge. ben@khanacademy.org
95.
by kamens 14y ago
At least the good ones. I did have one get all grossed out. Good riddance.
96.
by kamens 14y ago
Ditto this. When I was 15/16 and considering a pump (I got one when I was 17), I was seriously concerned about social implications. That was an extra year or two spent injecting when I should've been on the pump. I'm willing to take some of
97.
by kamens 14y ago
Will back up Scott here -- while not an olympian, I rowed for 4 years on the pump and have biked x-country w/ it. I seriously doubt if I would've been up to doing either while managing injections instead of button presses.
98.
by kamens 14y ago
Shoot me an email -- kamens@gmail.com. Limited wisdom here, but who knows :).
99.
by kamens 14y ago
Thanks -- your compliment is enough. We really wanted the app to be free. Just figured I'd share as it's definitely not profitable :).
100.
by kamens 14y ago
sunlight labs api -- they're awesome. http://services.sunlightlabs.com/docs/Sunlight_Congress_API/
101.
by kamens 14y ago
Launched an app to get your congress reps on the phone w/ a single button - http://www.airshipsoftware.com/contact-congress Meant to be free for all, included a silly in-app purchase. Generated lots of calls to congress, got some press, c
102.
by kamens 14y ago
"He cites an idea that he attributes to Cheezburger Network chief executive Ben Huh, that every Internet user should have their legislators’ phone numbers saved on their cell phone and ready to use on a regular basis." @jasonrr and I built
103.
by kamens 14y ago
I cheated in order to follow up the title of my previous Part I. I'm a total cheater.
104.
Pull Hard(tghw.com)
3 points by kamens 14y ago|0 comments
105.
by kamens 14y ago
Khan Academy - Mountain View - (full-time and intern, designers and devs) Our mission is to provide a world-class education to anyone, anywhere. We're scaling quickly. Our students answer over 2 million math problems per day (over 500M tota
106.
by kamens 15y ago
Congrats, Kevin -- this sounds like a great move.
107.
by kamens 15y ago
I'm honestly not sure how to detect which version of Apple's adaptive live streaming protocol thingamabob is being received. It's probably possible, but no, we don't have it at the moment. Tips welcome.
108.
by kamens 15y ago
Interesting tidbit: it's taken us months to get approved for the App Store b/c we were a bit stubborn in our refusal to offer an audio-only version of Sal's videos to people w/ crappy cell connections. Since his stuff is so low-bitrate, we
109.
by kamens 15y ago
Thanks for feedback, and agreed on title. There are many 3rd party apps out there that have taken "Khan Academy" and we didn't want to go through the legal hassle or harm any developers using our API, so we added that on. We may eventually
110.
by kamens 15y ago
Note that we are currently a/b testing the effects of offering a "transcript" button under each video on the website itself which does just this. If you're lucky, you may already have the button. We'll almost certainly launch it to everyone
111.
by kamens 15y ago
Music to my ears. Absolutely. We have "focus on the student" hanging all over our office (which is pretty tricky b/c we change offices all the time these days for reasons I won't get into :) ). It's easy to see how other agendas could creep
112.
by kamens 15y ago
You're right, I did take the route of attacking single-metric incentive systems despite the fact that they're not 100% single-metric. I wanted to get a point across that I think still needs getting across. I'm not arguing against the use of
113.
Teacher effectiveness ratings, programmers, and Khan Academy's data(bjk5.com)
55 points by kamens 15y ago|13 comments
114.
by kamens 15y ago
Yet another reason why distributed source control plays so nice w/ code reviews. You can push anywhere you want -- doesn't have to be to your stable repository -- in the process of getting reviews. Or, you can push to stable and deal w/ the
115.
by kamens 15y ago
We all review frequently and this hasn't happened to us yet. Our reviews are extremely helpful. It has to be seen as a very core part of the dev team's culture. I also explicitly asked this question to some ex-Googler team members about Go
116.
by kamens 15y ago
Have you ever wondered if you should parse html w/ a regex? http://stackoverflow.com/questions/1732348/regex-match-open-...
117.
by kamens 15y ago
It's linked in the post, but our team has also published our code review policy: https://sites.google.com/a/khanacademy.org/forge/for-develop... The post doesn't talk about these specifics, but a key for us is: "Don’t require perfection.
118.
by kamens 15y ago
The thing is, I always thought requiring reviews was something for those types of organizations ("government agencies and enterprise organizations") and should be kept out of the fast-moving pace of web startups. I no longer have that mis
119.
We started requiring code reviews for everything, and my head hasn't exploded(bjk5.com)
68 points by kamens 15y ago|54 comments
120.
by kamens 15y ago
Also, it may be worth checking out the walkthrough video and extended docs here, linked from @stchangg's post: http://khan-exercises.readthedocs.org/en/latest/index.html

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