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by kragen 1850 days ago
It sounds like you're saying that new hackers don't have a good place to go for reliable information, and in the 01980s they did, because magazines and books were reliable, and now they're gone? And that it's harder to get electronic parts now than it was in the 01980s?

I think I disagree with both of these. But I'll only tackle the first one.

With respect to reliability of information, I agree there's an enormous amount of misinformation out there now, especially in places like YouChube. But ⓐ there's also excellent reliable information out there on Wikipedia and Stack Exchange, for which there was no equivalent in the 01980s, and ⓑ even YouChube isn't that bad.

Let's take a look at the particular example you picked, misinformation or lack of information about solder types. My top ten hits for [how to solder] are https://www.youtube.com/watch?v=oqV2xU1fee8 https://www.youtube.com/watch?v=Zu3TYBs65FM https://www.youtube.com/watch?v=6rmErwU5E-k https://www.youtube.com/watch?v=Fp37DPZVdRI https://www.youtube.com/watch?v=EW9Y8rDm4kE https://www.youtube.com/watch?v=Qps9woUGkvI https://www.youtube.com/watch?v=VxMV6wGS3NY https://www.youtube.com/watch?v=IpkkfK937mU https://www.youtube.com/watch?v=qxqZJH3SfN4 https://www.youtube.com/watch?v=ZwU9SqO0udU, which mysteriously all ten are about soldering electronics and none about plumbing. Of these #1, #3, and #5 talk about lead-free solder vs. leaded electronics solder, and #2 does that and also specifically warns you away from silver solder and acid flux. Only #4 (which is of very poor quality), #6, and #7 omit information on the question of different solder types. (#6 does mention "rosin-core solder" but doesn't explain that there are other kinds.)

Item #8 is a special case: it talks a lot about flux, shows rosin-core solder highly magnified, talks about solder composition... but it incorrectly claims the rosin is "a weak acid" and doesn't really mention the existence of other types of solder until a passing mention of lead-free solder near the end.

(I, uh, ran into my writing deadline before checking items #9 and #10. Comments welcome.)

So, even though YouChube is much less reliable than Wikipedia or Stack Exchange, I think that if you were to spend fifteen minutes watching randomly chosen videos that YouChube serves you up when you google [how to solder], you would find out that you need special electronics solder, and most of the other information you got would be correct. And you would have spent fifteen minutes watching experienced technicians explain and demonstrate proper and improper soldering technique under high magnification.

Of course, this is still vastly inferior to being taught soldering by someone who knows how to solder! But we weren't comparing YouChube to apprenticeships, were we? We were comparing YouChube to reading Popular Electronics and, I don't know, the worthless pap that passed for "educational TV" in the 01980s. PBS or something. Most PBS shows were the TV equivalent of WIRED Magazine: just enough information to give you the illusion of understanding, but not enough to actually learn anything.

As for the reliability of magazines and books, I recall my Encyclopedia of Science and Invention in the late 01980s solemnly informed me that computer RAM consisted of magnetic cores and that fluidic integrated circuits were commonplace in missile guidance systems. OMNI Magazine was full of UFO speculation. The how-to booklet that came with my Radio Shack 200-in-1 electronics kit gave me wiring diagrams for how to wire up a Hartley oscillator, but no equations and not even the name "Hartley oscillator", so I really had no hope of ever understanding how the damn thing worked. In high school in 01992 I took a "pre-engineering electronics" class, whose textbook explained to us that TTL logic had propagation delays around 5 ns, while CMOS logic was more like 20 ns — true in 01972, but that was the year the school was buying a 200MHz DEC Alpha αxp server, which I naturally deduced must consist entirely of ECL.† And I recall getting very excited when I started reading books in the school library about the Bermuda Triangle, and then there were the Hare Krishna books explaining how worms bite babies in the womb and how Krsna Consciousness would liberate you from the cycle of rebirth, and the books explaining how to develop your psychic powers...

So I think YouChube and BitTorrent and the like have vastly improved the access-to-information situation, even in the specific example you chose, and moreover there are vastly better information sources around. I already mentioned Wikipedia and Stack Exchange, but there are also reputable open-source projects like QUCS and yosys, there's ##electronics on libera.chat, there's Hackaday, there's still Don Lancaster, there's Kuphaldt's excellent open-content textbook at http://www.ibiblio.org/kuphaldt/electricCircuits/, and there's the Internet Archive; and, for those living in places where they're legal, Library Genesis and sci-hub provide instant access to a depth of knowledge on nearly any topic that vastly exceeds what even any university library had in the 01980s.

There is vastly more misinformation available. But there was always plenty of misinformation. There's also vastly more of precisely the solid, curated material for new people and advanced people that you're looking for, and it's immensely more accessible!

______

† The Alpha was of course a CMOS microprocessor, like every microprocessor I've ever seen or heard of. CMOS propagation delays were down below a nanosecond in 01992, but our textbook was outdated by over an order of magnitude.

1 comments

I respect your idea of trying to make dates valid for 10x the duration of 4 digit dates; however prefix with a leading zero also often implies octal parsing. Current date formats ignore that for fields of fixed with, and make various assumptions in cases of dynamic width.

There doesn't appear to be a notation similar to the C style prefixes 0x and 0 (hex and octal), nor like the mentioned assembly language post-fixes.

It would greatly aid clarity if there were a clear way of denoting these were dates. Visually, my language parsing center is optimized to assume years are 4 or 2 digits in length. Five is confusing.

https://superuser.com/questions/885624/proper-way-to-denote-...

Plus, it is only short term thinking, to not write it as 000001987, for example.

And what sort of long term thinking, wants all that extra electricity used to denote pre-zeros endlessly, thus increasing data transmission, disk space usage, and even calories to type it. I bet current excess power usage, is equal to at least a bucket full of coal yearly, and that adds up when thinking over 10k years or more.

Five digit years is a Long Now foundation thing. Saying "it looks like octal" is new to me though.
I've never heard the foundation until now. I'm on octal side since here's HN.
Hey, you're one of today's lucky ten thousand. You're in for a real treat if you like hacking — there may have lived hackers greater than Danny Hillis, but probably no more than a few dozen, perhaps none alive today. And almost none of those had access to the means to realize their potential.

The story begins:

"There is a Clock ringing deep inside a mountain. It is a huge Clock, hundreds of feet tall, designed to tick for 10,000 years. Every once in a while the bells of this buried Clock play a melody. Each time the chimes ring, it’s a melody the Clock has never played before. The Clock’s chimes have been programmed to not repeat themselves for 10,000 years. Most times the Clock rings when a visitor has wound it, but the Clock hoards energy from a different source and occasionally it will ring itself when no one is around to hear it. It’s anyone’s guess how many beautiful songs will never be heard over the Clock’s 10 millennial lifespan.

"The Clock is real. It is now being built inside a mountain in western Texas. ..."

https://longnow.org/clock/

https://rosettaproject.org/

8 and 9 aren't valid octal digits since C89 :)