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daltonlp

469 karma · joined April 20, 2007

email: daltonlp@gmail.com
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daltonlp··on Wire wrap
Holler. Our EE curriculum did the same thing (with an 8088). All the groups spent an lot of time with the logic analyzer detecting one-wrong-wire issues.

That was an incredibly valuable learning experience. I don't know if it's still taught that way, but I hope so.

daltonlp··on ‘The Senator Be Embezzling’
By contrast:

https://www.themarshallproject.org/2015/08/19/prisoners-who-...

"I forgot I was incarcerated sometimes. The staff treated you like a human, not a number."

"I’d say it was a way more liberal place, with way less of the prison politics. At the camp, everyone wasn’t segregated by race, like it was in prison. And the power dynamics and the violence you see on the prison yard, the ‘survival of the fittest’ stuff — that was hardly there at all."

"There were enough of the tough guys there that I had thought the same politics would still hold true, but I learned that fewer total men, plus more freedom for those men, equals a safer place than an overcrowded yard."

"You’re still counting down the days until you go home; it’s not like you want to stay there. But fighting fires, man, that is so much safer than being in prison."

"I saw guys fall off cliffs and get pretty injured, chainsaw injuries, burns, heat stroke."

"It was so physically demanding — but I have to say, it was an honor, a privilege, and a gift to be doing it. Every day, we wanted to prove we were better than the professional firefighters who were there. And it made me understand how much good I could do and how proud of myself I could be at the end of the day, which never happened in prison."

daltonlp··on ‘The Senator Be Embezzling’
> although that privilege would be monitored and revoked

Monitoring video-chat would require more guards, not fewer.

Delivering food to each cell would take more staff, not fewer.

> it would certainly be more pleasant for first-time offenders who don't fit into key prison demographics like the senator or probably you or I.

Are you proposing "enhanced solitary" for all inmates, or just the ex-senators?

daltonlp··on “The Fallen Apple” Corrections (1999)
A draft of an early Newton flyer said "It recognizes your handwriting". I insisted that the phrase be removed, and the copy writers promised to take it out. The printed flyers did not arrive at the CES show until minutes before we started the presentation. There, on page 1, it said, "It recognizes your handwriting". The PR team must have thought that I would forgive this transgression after I saw what wonderful press coverage we received from such a bold statement. But what they had unknowingly done was to hammer a large nail into the Newton coffin by setting expectations we knew we could not meet.
daltonlp··on Show HN: Wriber – Idea Generator
"cold embrace death"

- What showing a large black bird sitting between candles?

- Talk about why those burning eyes spoke of terrible things that have been done.

- What is fuck all?

- Did daylight blind their way the sun will never shine through someone?

- Was the military encampment calling to them like a bitch in heat?

- Describe how it was not long before they were under assault by infected.

- Did the boy sprint towards the doors that would answer his questions?

- What did the strain of making ends meet and paying for?

- How does someone not know too much helpful spells yet?

daltonlp··on Ask HN: What are your favorite short stories?
Anything Ted Chiang writes.
daltonlp··on Coolors – color scheme generator for designers
Nope!

http://www.colr.org/darius.html

daltonlp··on Google Geo Developers Blog: Interactive Data Layers in the JavaScript Maps API
Excellent!

How about implementing the ability to delete a vertex in an editable polygon or polyline?

https://code.google.com/p/gmaps-api-issues/issues/detail?id=...

daltonlp··on Can life exist on a planet without a star?
Dark Eden is a recent novel with exactly this premise. It's an excellent book:

https://www.goodreads.com/book/show/18166988-dark-eden

daltonlp··on This Is What Common Core Looks Like
Yes exactly. That's the reason so much practice is necessary. When you learn subtraction, you need to see lots and lots of number combinations, many of which you'll initially get wrong, but soon learn to do correctly, then recognize instantly, and finally use as building blocks.
daltonlp··on This Is What Common Core Looks Like
Full agreement - any subtraction algorithm is fine, as long as it's well-learned (which takes a non-trivial amount of practice).
daltonlp··on This Is What Common Core Looks Like
The first two paragraphs illustrate a huge problem with US math education, which pre-dates common core, but is reinforced by it.

That problem is the false belief that numeracy is improved by learning different ways of looking at number operations. (i.e. four ways to subtract).

Our child's second-grade teacher (a very good teacher) has a poster illustrating 7 ways to subtract. Seven ways, no exaggeration. This poster is older than common core.

Students learn math just like they learn to kick a ball. By practicing. Learn one way to subtract, and practice it really really well. Or learn two ways, and practice each way really, really well. Learn more ways if you want, but practice each way really really well. Most math curriculums assume that learning multiple ways is equivalent to (or better than) practicing one way. They don't require the repetitive practice.

As comments have pointed out, the common core standards don't explicitly require this multi-way approach. But the CC standards compound the problem by requiring students to explain concepts in order to demonstrate mastery. Completing lots of subtraction problems with a low rate of error doesn't count. You must explain, in order to understand. And if you really understand, shouldn't you be able to explain different approaches?

I would say no. Or at least, not yet. I don't want a third-grader explaining how to subtract unless they can also finish 50 subtraction problems in a row without pausing to struggle. And if they get the problems right? Good job, you get an A. Wonderful, let's skip grading the explanation because that is subjective as hell.

TL/DR: The article rightly points out a crap way to teach math. Common core is not totally to blame, but it makes a bad problem worse.

daltonlp··on Ask HN: Toxic startup enviroment, need advice
Read this, and re-read it a couple times a year:

http://michaelochurch.wordpress.com/2014/07/13/how-the-other...

daltonlp··on Poll: How many emails do you have in your inbox right now?
ALL OF THEM.
daltonlp··on A Middle-School Cheating Scandal Raises Questions About No Child Left Behind
Excellent resources.

School districts in MN have problems too, and have occasionally tried things that didn't work:

http://en.wikipedia.org/wiki/Profile_of_Learning

But the state and local districts have been making worthy efforts to stay ahead of the educational challenges they face, for the 34 years I've lived in the state.

As a parent, I can confirm that open enrollment is hugely important.

And let's not forget MECC :)

http://en.wikipedia.org/wiki/MECC

daltonlp··on The Mao Mango Cult of 1968 and the Rise of China's Working Class
Strange coincidence, I just finished reading "The Private Life of Chairman Mao", which also describes the mango incident. It's an incredible book.
daltonlp··on Anya Groner: The Heart You Save Won’t Be Your Own
Independent small entities are absolutely a good approach.

Here is one: http://www.cyclesforchange.org/

Here is another: http://sisterscamelot.org/

Here is a third: http://mncee.org/

(disclosure: I work for the third)

daltonlp··on Developments in Quantum Physics Are About to Transform Our Daily Lives
Baseless hype train, prepare for departure!

Headline engineer, confirm misleading title. (confirmed, sir!)

Conductor, ask all passengers to refrain from critical thinking (aye-aye!)

Marketing director, prepare ads and upsell links (done and done!)

Graphics, get some kind of circuitboard image up there. I don't care, something with wires and crap. Doesn't matter.

Blow the hype whistle!

WOOOOO WOOOOOOOOOOOOOOOO

daltonlp··on Show HN: A Color Palette Generator I Built For My Senior Thesis
Here's a shameless plug for http://www.colr.org . No palette generation algorithms, but lots of tagging and classification.
daltonlp··on $40k a year to attend Harvard University as me
Perhaps the knowledge that someone with the means and motivation to perpetrate a $170K fraud like this also has the means and motivation to pay $15-20K to have you harmed or killed.

http://en.wikipedia.org/wiki/Contract_killing

"Make it look like an accident."

Actually, that's a risk even if you plan to abide by the NDA.

For what it's worth, I think this offer is an entertaining troll and not actually real.

daltonlp··on This MIT 3D Shape-Shifting Project Called Inform Will Blow Your Mind
This technology is so jaw dropping, ten years ago these MIT students would’ve been looked at as aliens, 20 years ago, burned at the steak.

My goodness, what grammatically challenged linkbait!

daltonlp··on Ask HN: substitute for Google Calendar
Teamup calendar is pretty nice. http://www.teamup.com/
daltonlp··on Find Your Color Scheme
http://www.colr.org tries to do exactly that.

Try searching for "autumn" or "forest" or "shrimp"

daltonlp··on Show HN: Diffs of Word documents, designed for humans
Really nice work, you guys.

Also, nice timing. I recently posted a hobby project to HN that is very similar :)

http://www.nicediff.com

https://news.ycombinator.com/item?id=5599229

The ribbon support within word itself is great. The ability to link to specific sections of the diff is also a handy feature.

daltonlp··on Experience the Apollo 11 Lunar Landing
Thanks, I'll read that. "Flight" by Gene Kranz, is also an amazing book.
daltonlp··on Ask HN: How do you deal with your mediocrity?
Richard Feynman had that problem. He solved that problem by saying "whatever, I'll just have fun playing."

http://www.physics.ohio-state.edu/~kilcup/262/feynman.html

I'm not sure anyone else followed his example all the way to the nobel prize, but I can say for certain that I've followed it to a satisfying place.

I wonder if I'm more mediocre than you, or you're more mediocre than me. One of us must be more mediocre. One of us has two thumbs and doesn't care.

daltonlp··on Steve Jobs' exchange with Palm CEO Ed Colligan
That sounds like a book I would read. Oddly enough, I can't find it on amazon or goodreads. Or google. Is this a real book that actually exists?
daltonlp··on [dead]
I agree, that's a great summary. If you were Aaron, and those were the options you faced, would you have taken taken the plea deal?
daltonlp··on Ask HN: Why was Aaron Swartz so special?
Aaron is special to me, because I care about the things he cared about. He also answered my emails.

I remember doing what he did to JSTOR, to mytopo.com in 2001. This was a perl script that fetched topographic map tiles, and stitched them together to make a big map.

I printed that map, and brought it on a boundary waters trip.

I remember feeling puzzlement when I saw the north-south tile boundaries didn't quite match.

I remember thinking and testing, and realizing this must be due to the map projection error.

I remember feeling satisfaction using a pencil to calculate how to adjust for the projection. I remember feeling elation when the edges matched exactly.

I remember feeling fear, knowing I was breaking rules. I was doing all this from the office of my employer, after hours.

I remember feeling excitement because of the fear.

I remember the the look of concern on my girlfriend's face when I described the accomplishment and showed her the map. "Oh honey," she said, "Did you hack?"

Half a decade later, I remember writing python scripts to scrape color names from paint manufacturers, to build the first dataset for colr.org. Also in perl.

I remember researching whether color names could be copyrighted.

I remember feeling rather fearless after learning they could not. I remember feeling distinct pleasure at adding "cadbury purple" to the dataset. I remember doing this from home, with no connection to my employer.

I remember porting colr.org to web.py. I remember learning web.py at the same time I learned python, and feeling thankful to Aaron for creating it.

I remember my friend Hamid. He was from Iran. We met in college, studying electrical engineering at a state university. It was not exactly MIT.

Hamid and I were roommates for a year or so. He was older than most US college students. This was because Hamid had lived in hiding for 8 years, during the Iran-Iraq war.

To avoid conscription, his family sent him to live with an uncle in another city. He lived and worked in the basement of the uncle's electronics shop, repairing TVs and other appliances. After the war ended in 1988, Hamid's family got him out of the country.

Hamid rarely talked about this time in his life. But I remember one time someone asked him what that war had been like.

He replied, "You look out the window, and you see the missile come. You see it hit your neighbor's house."

Hamid had a tough time with the math courses required for electrical engineering. He outright failed a few, but he re-took them and passed.

He was a genius in the lab. He could, and would, help anyone with their hardware labwork. He didn't just help, he taught. He was patient and kind. He understood analog electronics with an instinct strengthened by years of practice.

While we were roommates, he took a VCR out of a dumpster, and fixed it. That VCR had been smashed to pieces.

Hamid made really good milk tea.

After he graduated, Hamid was hired as an RF engineer. He spent years driving around the US building cell networks. He told me much of his work involved correcting poor antennas designed and installed by incompetent engineers. "The company is so desperate to build, they hire anyone with a pulse", he told me.

Hamid broke his nation's laws. If he had been caught by the Iranian government, he would be imprisoned or executed.

I remember following Aaron's drama-filled departure from reddit, and some of his further escapades. I remember feeling like this dude was amazing, but maybe too intense. I remember hoping for his peace and happiness, but fearing it might not be in the cards. Aaron lived in interesting times, and he was devoted to stirring up more interest.

I remember the cold feeling in my stomach when I read about the JSTOR arrest. I thought about the topo maps, and the colors.

I remember feeling less regard for Aaron, because he had been caught doing a bad thing. Why did I feel this way?

People break laws, and laws break people.

The law broke Aaron. He was not made of iron. He was made of person.

daltonlp··on Instagram's official response
I fail to see the difference between the two examples. They both imply endorsement.

In both cases, Dominoes has paid Instagram to promote its product. In both cases, Instagram has taken a photo of Bob (taken by Bob? Taken by a friend of Bob's?) And attached it to a marketing effort on behalf of Dominoes. In neither case does the photo's subject (Bob) or its author (Bob?) have a say over the photo's use.

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