When life started to emerge in the giant oceans around 600 million years ago, the first organisms to populate this ‘geophony’ still had essentially unlimited bandwidth to choose from. Slowly but surely, however, things became more complicated:We have a nice parallel to this process in the history of radio. In 1920 when voice broadcasting began, most transmitters used an untuned spark. Illustration using an early Signal Corps transmitter:
The spark created a broad band of frequencies, from near DC up to about 1 Megacycle, with a peak around 500 Kc. All radio stations were sending on this same broad range, with some slight tuning to a couple of narrower subranges. Whenever a ship was using its transmitter to send an SOS, the shore stations that picked it up issued a command via wire telegraph to all broadcasters in the area, and they shut down until the emergency transmission was handled.
This situation couldn't last and didn't last long. Transmitter technology found ways to emit a narrowly tuned sine wave on one frequency, and receiver tech found ways to tune in one chosen freq.
Both changes had to happen at once, and they certainly DIDN'T happen because cosmic rays were striking the transmitters and causing random deterioration. They happened because ORGANIZED HUMAN INTELLIGENCE saw the problem, understood that it was interfering with the PURPOSE of broadcasting for information and entertainment, and SOLVED the problem with specific advances in materials and circuitry and regulations.
LIFE IS PURPOSE.Labels: Carbon Cult, Danbo
I didn't include a driver, which was literally accurate but missed the main point.
The Business Insider article shows an actual picture of Uber's squishy-exterminators:
Unsurprisingly, they look just like what they are.
Much clearer metaphor.
Labels: #DeplorableLivesMatter, Danbo
You can use software for initial experimentation, especially in areas where mistakes could hurt actual people. But at some point you need to get physical and stay physical.
It's like the gold standard. Checks and Paypal are convenient, but unless you pin them down to PHYSICAL REALITY, the experts are perfectly free to cheat you and enrich the Chosen.
= = = = =
Sidenote for clarity: There's always an argument about using computers for note-taking and research in the classroom. Seems to be settling toward a negative answer. The negative answer makes sense: Paper and pencil are better for memorization than typing on a laptop. But that's not the point I'm making.
Reiterating: Any indirect representation by authors or publishers or teachers or boards of education, whether it's a book or a blackboard or software, is worse than getting your hands on THE REAL THING. Reality cannot misrepresent reality.
Carver as usual. Look about you. Take hold of the things that are here. Let them talk to you. Talk to them.
The things that are here, not the things that some author wrote.
Labels: Carver, Danbo, Experiential education, skill-estate
Though it's hard to tell from outside, I suspect the ALIVENESS of real doctors avoided most deaths. Real doctors and nurses, no matter how distracted and overworked by bad technology, try to retain a direct and intuitive picture of the patient's condition.
For some reason I started reading those lights in Morse.
Chevy hit the Morse Aptronym jackpot in '65.
The Chevy II had .. .. = ii.
The SS (and other Impalas) had ... ... = ss.
If you read vertically and diagonally, you can see more complicated patterns.
'60 CaDDy = DD. '57 Plymouth = NA. The absolute zenith of Morsable cars was the '42-48 Buick. If you start from the reflector and read through taillight, directionals/stop, taillight and reflector, you get ENKAE. Doesn't spell anything, but it's complex enough that it could have been used for steganography. Some modern cars with patterns of LEDs and sequential flashers could send whole paragraphs.
Polistra is talking about Caddies.
Question: Is there a car that could spell its own name if it wanted to? I can't find any 'serious' examples. All four-cycle engines are 'Otto-cycle' engines, especially in German; but no actual car was called Otto. [Oops, spoke too soon. Google spinoff is developing on Otto-nomous truck!] Brazil had a modified Lotus called the Emme. That's about it for fully symmetrical names. I think the longest Morse palindrome is 'waiting', but that's an unlikely car name except maybe in Japan. Austin comes DAMN close with just a slight gap in symmetry. Labels: Aptronym Alert, Danbo
David Cameron has prompted anger by telling his MPs to ignore the views of eurosceptic grassroots members and Conservative associations ahead of the European Union referendum. The Prime Minister warned backbenchers not to take a view on the vote “because of what your constituency association might say”.And then it emerges that Cameron's "deal" with EU was never going to happen anyway:
Discontent deepened when Brussels officials indicated that a so-called “emergency brake” on benefit claims by EU migrants could take 18 months to come into force. It was revealed that the European Parliament could rip up the plan after Britain’s EU referendum if the country votes to stay tied to Brussels.In good old Doublethink terms: Don't worry. I've made a deal. It's not a deal. You're screwed. Don't worry. Keep voting with me. I believe in democracy. You're free to vote any way you want. You're dead if you don't vote with me. Don't worry. This is just another "that's how you know" meme. Manholes in big cities emit a constant cloud of steam so you can tell you're in a big city. Fords emit a blue oval of oil smoke so you can tell it's a Ford. Leaders emit a cloud of perfectly obvious lies so you can tell you're in a total dictatorship with no hope of improvement.
It's just a courtesy, a sort of compass or locator service, like You Are Here on a mall map.
Labels: Asked and answered, Danbo
Hmph. I thought this was going to show how Romans could use analog fluidics to advantage, but it shows the opposite. If the lever arm was properly balanced, Polistra could control it easily with a rope tied to the long end. No water needed! Or for more precision, she could use a cranked winch to regulate the rope.
In other words, the catapult as originally designed was sufficient for this job. Lever, crank, windlass. Classic machines solved classic problems.
The idea of the amplifier was first imagined in 1840, as part of the huge burst of electrical invention. By bringing a static field near a wire, could you repel part of the charges in the wire and thus 'pinch off' the flow gradually? The idea didn't work with a wire because the charges move too easily. It was like trying to restrict a deep river with a single tree. The idea had to wait until we could run the whole river through a gravel bed, making it harder for the flow to reunite behind the tree. Semiconductors finally provided the gravel bed.
But why was the amplifier necessary (thus imaginable) for electricity when it hadn't been needed before? The answer pops out. When you're trying to control fast precise movements in an intangible medium, levers are useless. You need amplifiers. The first amplifier was digital: the telegraph relay. After the signal has weakened over miles of wire, the relay uses the faint ons and offs to switch current from a 'new' local battery. Much later, after the telephone introduced analog signals, the triode tube finally used the original 'pinch valve' idea with vacuum as the gravel bed. Better materials led later to the field-effect transistor, which is an EXACT implementation of the 'pinch valve' with silicon as the gravel bed.Labels: Asked and answered, Danbo
The rides!
Kiwanis maintained this little amusement park and ran the rides on weekends in summer. There was no fence around the area, so I was always wandering and climbing when it wasn't in use. Mysteriously, I somehow survived and didn't feel the need to sue anyone. Obviously this was impossible. No kid could survive such a horrible experience.Labels: Danbo
The National Council of Teachers of Mathematics (NCTM) in the US defended how the paper was marked, saying it gives students a better understanding of the problems they are solving. "Part of what we are trying to teach children is to become problem solvers and thinkers," said Diane Briars, president of the NCTM. "We want students to understand what they're doing, not just get the right answer."but no iteration includes a link to the NCTM's actual statement. Google doesn't get there by any keyword I can think of. If this is ALL Briars said, she's flat wrong. I doubt that this is ALL she said, but I can't find the rest of it or the context. There's nothing new about using rectangular arrays to show addition and multiplication. Normally the WHOLE POINT of doing the array thing is to give the student a strong visual feel for the commutative property, the idea that 3 x 5 and 5 x 3 are always going to give you 15. It doesn't matter if you see the array as 3 groups of 5 or 5 groups of 3. It's 15.
The teacher is blowing the WHOLE POINT of the array method by marking the kid wrong for switching the rows and columns. Switching the rows and columns is EXACTLY WHY YOU DO THIS EXERCISE.
= = = = =
Footnote for clarity: I'm not intending to bash the teacher. I suspect she's inexperienced and overwhelmed by CC. She may have made a simple mistake. I'm bashing Briars of NCTM, who has issued an authoritative message approving this mistake on behalf of all math teachers. Not in my name, Briars!
= = = = =
Few days later: Some tech-tyrant asshole tried to defend the bad marking. He cited two vague connections: (1) Equal isn't the same thing as Equivalent in Javascript. Huh? That has nothing at all to do with math. It's solely about Javascript's peculiar and inconsistent ways of converting strings to numbers. (2) Matrix multiplication is not commutative. Valid in itself, but irrelevant for a 3rd grade class. At this stage you need to get a FIRM GRASP on the commutative property, because it's crucially necessary for all sorts of algebraic manipulations. If part of your mind is thinking non-commutative, you'll be lost in algebra.
I've been programming about graphics and waves for 30 years, and I've NEVER had to use matrix multiplication. I use the basic properties of sin, cos, tan, and polar-to-rect conversion every day. You could say those are closely related to matrices, but I've never felt the need to do actual matrix ops.
Nearly all the commenters soundly lashed the tech-tyrant asshole from a wide variety of angles. Refreshing and reassuring.Labels: Danbo, Experiential education
It's just so darned reassuring to know that the trillions we spend on defense are busy defending us against RUSSIANAGGRESSIONAGGRESSIONAGGRESSION and ISIS and ISIL and IS and Islamic State and Daesh and Tiede and Swaen and Rienso Bleue and Doeve and MeenMawTheCountryThatSomePeopleStillReferToAsBurma and Christians and Southerners and Evil Carbon and ... well, gosh o' golly, just every dratted thing that threatens Our Freedoms and Our Perfect Justice System and Our Perfect Education System and Our Perfect Health System and Our Perfect Democracy.
Dead serious now: America's epitaph.
HOLY FUCK! IT'S A DRUNK BABY WHALE, BRO! IT'S HURT, BRO! Labels: Danbo, Гром победы
It's a close parallel. From what I've read, the T's spark control is equally 'active'. You can't just set it and forget it. There is a prescribed default for each click of the throttle lever, just as the regen has a default setting for each band. But you can get different types of performance, adapt to altitude or fuel quality, by twiddling the spark.
When regens were replaced by superhets, the 'activity' went away, which most listeners appreciated; but we also lost the ability to adjust intelligently for different types of signals.
When manual spark was replaced by vacuum and/or centrifugal advance, the 'activity' went away, which most drivers appreciated; but we also lost the ability to adjust intelligently for different situations.Labels: coot-proofing, Danbo, defensible spaces, Make or break, new toy
Well, that didn't work. And the reality isn't working either.Labels: 20th century Dark Age, Danbo, epistemology
U.S. District Judge[sic] David Bunning released Davis from jail Tuesday on the condition that she does not interfere with her deputies issuing the licenses. Bunning said he was satisfied that the Rowan County Clerk’s Office would comply with his order.Davis's supporters are treating this as a victory. Sheer nonsense. It's pure surrender, pure defeat. There are only two choices. (1) Work for Satan and obey Satan totally. (2) Don't work for Satan. The supporters seem to be imagining that a third choice exists: (x) Work for Satan "inside the system", in an effort to reform Satan. This choice does not exist. You will not reform Satan. You will eat Satan's shit. At the moment choice (2) is easy enough. Most jobs are still neutral, not requiring God vs Satan decisions. This set will decrease FAST. Pay attention. DAY 7 OF THE FINAL PURGE. = = = = =
Sidethought a bit later: Though it's not quite obvious, the same logic applies to other aspects of the current battle. Consider the stock market, which has no apparent religious flavor. Lots of anti-Wall-Streeters think they can beat the elites by various charting techniques.
Nope. If your money is moving through the market, you are helping the evil bubble to stay inflated. You are feeding the elite's longs and shorts, and Goldman will always win those trades in the end. Goldman has the information because Goldman makes the information. Worse, you are absorbing the attitudes of the elite even while supposedly fighting the elite. The only way to bring down Satan is to remove your talents from Satan's jobs and remove your money from Satan's markets. It doesn't feel like fighting but it's the least harmful choice. Anything you do "inside the system" is feeding the system at the expense of your soul.
Labels: Danbo, defensible spaces, STRONG!
Basically a Non-Virtual Reality Entertainment Experience for passive sadists.Labels: Danbo
= = = = =
Sidenote: The worst of all such rhymes was hammered by a high-school English teacher.
Is! Are! Was! Were! Never takes an Ob! Ject!
Is! Are! Was! Were! Never takes an Ob! Ject!
Is! Are! Was! Were! Never takes an Ob! Ject!
The rhyme was basically meant to prevent "It's me." The rhyme was wrong. "It's me" is perfectly fine. Beyond wrongness the rhyme was also moot and defective. Moot because anyone who understands the concept of takes an object already knows the bad rule; defective because there aren't any situations where Are! and Were! come in front of a pronoun. It are us? It were him? Nobody says those things, so they don't need to be falsely "corrected".
Labels: Danbo, Language update
This little folding desk belonged to Grandma. She bought it used in the late '40s. It was probably a Sears or Wards product made in the '20s. Possibly homemade, since it doesn't have any labels or brands. Not a valuable antique for sure.
I doubt that Grandma used it much. She kept letters and checkbooks in it, but I never saw her open it up and write anything on the foldout part. I know she didn't use it after 1970 when her apartment was remodeled with a dense bouncy carpet. The desk was extremely tippy on that carpet. I tried to use it once and found out. The varnish on the inner surface of the foldout is remarkably undented and unscratched, indicating very little usage by anyone.
[[[ Major update Sept 4: I've been using the desk a lot; got tired of the little compartments on top that blocked part of my workspace. Carefully pried off the compartments. Made more room for my work, and also revealed a couple of letters that had been slipped in between the compartments and the top board! Both letters seem like junk mail, not important documents. One is a blank 1938 order form to the Personal Shopper at JL Hudson dept store in Detroit, the other is a mimeographed 1938 postcard sent to investors of a business in Detroit. But how did they get there? It's a tight fit, so they weren't tossed in by accident. If you wanted to discard these things, you'd simply discard them; if you wanted to stash for later retrieval, you wouldn't put them in a place that requires disassembling the desk. Best guess is kids playing Secret Agent games with throwaway mail. No matter the cause, the mere presence of these 1938 Detroit letters changes the story of the desk. Clearly Grandma brought her furniture along when she moved to Okla ... which also changes the story of Grandma and Grandpa as I understood it. No surprise there. I figured out a long time ago that the family story as understood is full of myths and mysteries, with Grandpa as Official Enemy. ]]]
When Grandma died in 1990 I inherited the desk and chair along with a couple other items. I never used the desk or chair because I remembered that it was tippy and unbalanced. For 25 years this desk and chair have been purely ornamental, holding miscellaneous items like spare disk drives inside and decorative crap on top. The chair, with its protruding posts, is good for hanging a shirt or coat.
= = = = =
A few months ago, when I returned to electronics, I decided to use the desk for project storage and possibly a workspace. Cleaned out the useless junk that had accumulated, and put the soldering iron, vise, and breadboards inside. Added cushions to the chair.
But for some reason I still didn't OPEN IT AND WORK WITH IT. Didn't even try sitting in the chair.
I just continued working on the big eating table (blue tablecloth to the left), as I've been doing for every task that requires a surface. I quickly found that the eating table has two disadvantages for this task. The soldering iron's cord goes rightward to the nearest plug, which is highly inconvenient for a left-hander; and the eating chair is directly in front of the air conditioner, which is highly uncomfortable. (Even a tiny house has microclimates!)
Grandma's desk would solve both of those problems. It's to the right of the plug and out of the AC's path. A couple days ago I finally tried it. The chair is comfortable enough, and the desk is absolutely
non-tippy on my wood floor. Perfectly stable. 25 years of stupid assumptions destroyed by reality.
I added the foil to protect the nice untouched varnish from hot solder, and it also makes the area easy to clean. Every bit of stripped insulation and every solder blob stands out on the bright surface.
In short: This desk is around 80 years old. I've known it for 60 years and owned it for 25. It may have been used for practical purposes in the first 20, but it's been purely ornamental for the last 60.
Until two days ago.
Now it's back in the saddle again. Turns out to be ideally suited for a purpose that didn't exist** when it was built.
= = = = =
First real project: building one of those Pixie QRP transceivers. These have been adequately 'unboxed' elsewhere, so I won't bother with the details, except to note that other 'unboxers' found missing parts. I found all the needed parts in the kit, plus a few extra caps.
= = = = =
The finished Pixie in context. I like to use hardback book covers as platforms. The key, needless to say, is Russki. Has a nice feel and a nice sound. The pieces will get firmed up and glued down now that I know it works, but it's not going to get highly formal. I'm not licensed yet. After I get licensed, I'll buy a serious receiver and build a better transmitter from scratch. This is just a 'jumpstart' to make electronic fun happen fast.
The VOM is set to read frequency. Here's a closeup with Pixie unpowered:
And here's what the freq meter shows with Pixie turned on but unkeyed. A foot-long pair of wires leading to a 50-ohm R serves as antenna and dummy load. I couldn't hear any signals in the earphones, but did hear appropriate-sounding static, identical to the sound I heard on a portable SW receiver tuned to 40 meters. Lack of signal is typical. Spokane is NOT a hot spot for shortwave.
And here's the keydown condition. 7020 kc. Pixie's xtal is nominally 7023; can't tell if this is a 'pulled resonance' or just slight inaccuracy of the VOM. The portable SW receiver also verifies that a signal is coming out. Tuned across the 40-meter band while V-ing the key, and sure enough the clicks come through around 7020.
Yay! Fun!
= = = = =
The desk and I are both proud. We're back in the saddle.
This saddling up, returning to electronics, feels significant in my own life as well. Feels almost like a 'calling'. Vaguely related to the Benedict option crap and the Orlov crap. I'm not sure where this is going, but my analog electronic skills and tools and junkbox may turn out to be useful in a world of barter. Or this may lead toward the right direction. If nothing else, I'm having loads of fun.
The soldering iron is a key to an unknown door. Danbo seems to know something....
= = = = =
** Footnote on "didn't exist"... Radios were starting to grow popular in the '20s, but building and fixing them involved BIG tools and BIG workbenches, more like carpentry or auto mechanics. A little desk like this wouldn't have served at all.
Labels: Danbo, defensible spaces, new toy
In many parts of the world ordinary trading uses no technology. People who use TRULY SECURE paper currency are not leaving an NSA trail. Most importantly, they are creating REAL VALUE by making or fixing or cleaning or painting or growing things. These are activities that anyone can do regardless of income.
LABOR IS VALUE.
And a paper currency transaction uses no energy AT ALL.
= = = = =
Even if we consider a more modern transaction via cash register, the energy usage is minuscule compared to Bitcoin.
Let's try a somewhat high estimate, based on a business that makes fairly sparse transactions. A small service business like a barber shop or dentist office will make about 10 sales per hour. A basic cash register uses about 1 KWH. Thus each transaction accounts for about 0.1 KWH. (The transaction itself is much less, but the register is running all the time, so I let each payment account for 1/10 of an hour.) Using the household usage figure in the article, 30 KWH per day, this means each transaction is about .003 of a household day, or 0.3% of a household day.
Thus the Bitcoin transaction uses about 450 times as much energy as a cash-register transaction.
= = = = =
Summing up:
If you want real security and low energy usage, use paper currency with no records. Zero NSA, zero energy.
If you want 'normal' and 'legitimate' operations, use paper currency in cash registers. Because you're reporting your income to IRS and other agencies, NSA can access the overall figures but can't identify the customers. Energy 0.3% of a household day.
If you want absolute intimacy with NSA and wildly profligate EVIL KKKARBON, use Bitcoin. Inside the belly of the beast. Energy 150% of a household day.
Labels: Carbon Cult, Danbo
During the flathead years our propagandists (like Willis Conover at VOA) used jazz as the vehicle for spreading US influence to the Soviet Bloc and to dark-skinned southern countries where Russia was gaining traction.
Wrong vehicle!.. but understandable. VOA was founded by NYC types who know nothing about automobiles and hate everything about Ford. Jazz is cool. Ford is maximally uncool. Henry gave good jobs to poor people, which is strictly forbidden by NYC sacramental rules. Poor people must be kept on welfare where NYC types can control them.Labels: 20th century Dark Age, Danbo
The picture is just to show the meter itself. I couldn't catch the brief responses on camera. I'm not satisfied with the way this meter works; it's not as sensitive as the earlier crude modified-VOM instrument. I suspect the 9V source is putting the JFETs too far into 'pinch-off' mode compared with the 1.5V batt in the VOM.
Thinking about the pull-away response: Simple electrons are behaving just like a more complicated social response!
Like coziness, like companionship, like possession of a wife or husband, like possession of an important object.
A dog makes it instantly obvious. When you leave the dog cries. As long as the dog is touching a nestmate, all is OK and calm.
It's always the deltas. All deltas get a response, but negative deltas get a more important response.
Natural law works with this natural tendency, shaping gradients to avoid pain and crime as much as possible.
Sharia law carefully balances and controls these gradients to keep society running smoothly. Like the dissimilar metals of a battery, male and female, rich and poor, are understood to be innately distinct. They are electrets. Sharia law forms a circuit and controls the distance and strength of these opposing charges to do useful work without overloading or fading.
On marriage: As long as the charge is present, neither side is allowed to pull away, and both sides are required to maintain their charge in order to do the useful work of raising kids. Man must be productive and protective, woman must be attractive and must take care of home and kids. But when the charge has unquestionably leaked away, divorce is made easy.
On physical possessions: You shouldn't hoard possessions. If you have a big pile, you're obliged to employ the poor man and treat him decently. Dipole-ly, the poor man is obliged to work for his keep. This pattern of flow and feedback lowers the rich man's side of the temptation gradient. If thieves steal, they lose a hand. This knowledge lowers the thief's side of the temptation gradient.
Modern western dysculture runs backwards in every possible way. Modern economy exponentializes all sorts of things that should be log or lin. Polistra has discussed this repeatedly!
At the same time, modern dysculture linearizes and flattens the exponential gradient of these proper batteries. Everyone is identical, dead and passive. Innate charge differences do not exist, so gradients do not exist. Therefore no useful work occurs. You do not own your wife and kids. They are just other dead grains of sand that happen to be in the same area temporarily. You're not allowed to get angry when your wife cheats or your kids disobey. The latest move toward wacked-out "transgender" delusions violently smashes the already-dying concept of natural electrets. You're not allowed to calibrate the system.
UK law also linearizes physical property. You're not allowed to defend your house against squatters and thieves. If you do, you're the criminal. US law has somehow avoided this part of the trend.
Labels: Danbo, Grand Blueprint, Metrology, Natural law = Sharia law, new toy
The current icon shows Polistra using a Personal Equation Machine.