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dbcurtis
searching PlanetScale…
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43 ms
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481.
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dbcurtis
7y ago
> Your answer is for the rent payer, with no economy, to "suck it up". You miss-read me. First of all, I did not suggest any answer. I suggested that people put more thoughtfulness into their analysis. What I am saying is t
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dbcurtis
7y ago
By "this area", are you referring to front-end, or back-end? I am going to guess back-end, because there are a lot of self-study tutorials for front-end that you probably have already found. Unfortunately, I am not an expert in b
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dbcurtis
7y ago
The author seems to be misinformed about the relative value of compiler front-end versus compiler back-end. Front-end is not where the challenges are in any production compiler. The hard work is in the optimizer. Lexical and syntactic ana
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dbcurtis
7y ago
Let's follow the money. Tenant fails to pay rent because of economic hardship. Building owner get in a cash squeeze and can't pay vendors like plumber, snow clearing, landscaping, and eventually can't make loan payments. Mor
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dbcurtis
7y ago
> Testing with hardware is hard. Yup. I work in robotics. I try to isolate the actual hardware interaction layer so that for testing you can mock the driver and hardware in one piece. Of course that does not test the driver. With any
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dbcurtis
7y ago
search error correcting codes. turbo codes. Viterbi codes. Golay codes. Reed-Soloman codes, Gallagher codes... the list goes on. Basically, error correction can supply “coding gain”. So in the path-loss equation, you get to add gain for err
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dbcurtis
7y ago
> Also, while we don't have a concrete plan for it yet, it's clear that some artists need help photographing their work. Absolutely. Photography is it's own media, with it's own techniques to master. I doubt many pa
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dbcurtis
7y ago
I love what you are trying to do. My family has a few artists in it (none full-time enough to pay the rent) so I have a visceral understanding of the passion that drives your idea. After looking at several paintings, I found it difficult t
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dbcurtis
7y ago
First semester only.
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dbcurtis
7y ago
MIT made all classes this semester effectively pass/fail. Makes sense to me. It has been wrenching, with different impact depending on each student's situation.
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dbcurtis
7y ago
As far as I can tell, you are agreeing with me. It is the channel that is not reciprocal, which is why there is a benefit to separate antennas. Do not confuse the analysis of an antenna in free space with real-world deployment with real
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dbcurtis
7y ago
I am glad that at least one person recognized my attempt at humor. The cheap-skate's antenna modelling package is NEC2, which is public domain. It is a Method-of-Moment solver, not FDTD which is much more useful at microwaves. But for
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dbcurtis
7y ago
In terms of the properties of the antenna itself, it is reciprocal -- the "How Antennas Work" part. You comment is more along the lines of "How to Use Antennas", that is a different question. The places where there is a
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dbcurtis
7y ago
How antennas work, very high level: 1. Accelerate an electron, get a photon. A good transmitting antenna is something that is an efficient structure for accelerating electrons. 2. Antennas are reciprocal. They receive as well as they trans
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dbcurtis
7y ago
> JCL ERROR IN OR NEAR CARD 1 COLUMN 1 0C7 ABEND ABORT CORE DUMP FOLLOWS: .... About the only other thing I remember is: //SYSIN DD * No. Thank. You.
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dbcurtis
7y ago
> the real world is apparently imperative. I beg to differ. The real world is declarative. But as software developers we mostly suck at creating declarative ways to express problems. The spreadsheet being the one example of an intuit
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dbcurtis
7y ago
14.230
498.
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dbcurtis
7y ago
That came out when I was a CPU logic designer, deep in the middle of a major mainframe project. (100K ECL, 20 BTU ton water chiller per CPU). My cube-mate and I both gave that book to our wive's and said: "Here. This is what I do
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dbcurtis
7y ago
Brian Kernighan gives credit to Doug McIlroy for coming up with the idea in 1964. Quoting from _UNIX A History and a Memoir_, page 68: "To put my strongest concerns in a nutshell: 1. we should have some way of coupling programs like g
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dbcurtis
7y ago
Trying to divine exercise from accelerometer data is hard. My kid's fitbit counted 2 hours of knitting as about 15 thousand steps.
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dbcurtis
7y ago
Not a user myself. My wife loves her Oura ring. Super comfortable, with the caveat that it doesn't come in ring half-sizes. My college-age kid uses an older FitBit for sleep tracking and is happy with that. I have no insight as to wh
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dbcurtis
7y ago
I believe so. Or the war-time version they did for the Army. I don't remember all the history of those machines exactly.
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dbcurtis
7y ago
Your comment made me think of a personal anecdote. File it under "Why I love living in Silicon Valley". Our neighborhood blocked off the street for a Fourth of July picnic a few years ago. Sitting in a lawn chair talking to a lo
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dbcurtis
7y ago
At one point in time or another I have been on the entire length of I-35 from Duluth to Corpus Christi. Not as a mission, just happenstance over the course of years. Probably not on all the side loops, though. I don’t have a point. It is ju
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dbcurtis
7y ago
But what is the MTBF? What is the chance that a unit can keep all of its tanks running without stopping for 600 miles?
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dbcurtis
7y ago
Home Depot has drywall stilts under US$100. Just sayin'
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dbcurtis
7y ago
Some people are harshing on you for recommending Python because C is the unavoidable end-game in Unix. But I agree with the advice that Python is a great place to start. Learn to write good Python. After that, learning to write good C will
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dbcurtis
7y ago
"And last, but certainly not least: I know we are making this announcement during the COVID-19 pandemic. We had already been planning to make this change, and decided to announce as soon as possible in part because we wanted to make su
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dbcurtis
7y ago
ROS is a publish/subscribe framework for distributed computing. It can’t really solve this problem. Heck, it barely solves the robotics problem.
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dbcurtis
7y ago
Hmmm.. OK, I wonder if that is a change in the law from some years ago?
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