Archive for the ‘Throwing Out the Trash’ Category

Traction

Tuesday, August 17th, 2010

Billy Beck, talking about tractors:

Ladies and gentlemen, this is about managing the immutable reality of mechanical systems. People can bullshit each other — and even themselves — over concepts in all sorts of ways. When concepts are forged in steel, that becomes impossible. You don’t get to bullshit your way around a 5/8″ bolt. You just don’t. When you’re dealing with a flywheel pilot bearing, no mental substitutions — whether from sloppiness or outright psychosis — will suffice: that bearing is only what it is, and your mind had better be right about everything about it.

Robert Pirsig once wrote a very ridiculous book, but he wrote it about a very serious subject.

There is great philosophy in machines.

Accompanied by some heart-warming shop photos.

[Hey, Billy! I've done a couple of head rebuilds, and my question is, where are you getting the gasket sets for this beast?]

This prompted Mike Soja:

I was standing in front of a green hooded idling number of about half the age of Beck’s specimen, while the man I was there to do business with slowly hand pumped diesel into the fuel neck from a large tank out behind his corn crib. Over the rumble, he pointed to the name plate at the prominent place on the nose and asked, “Ever see one of those before?” The plate said, “Deutz”, and I allowed that I hadn’t. He said it was a three cylinder, air cooled.

[He] remarked, “I’d like to buy a new one of these, but they don’t make them anymore.”

I asked, “Did they go out of business?”

“No. They just can’t make them. The government says they have to be water cooled, now.”

And that opened up whole new areas of conversation.

I’ve whacked out about half of that; see the whole thing for the flavor.

I’ve done volunteer teaching of fifth grade science labs. They stopped doing that;it was too damn much trouble, too messy, too loud.

I don’t know how much science got through, but if I managed to get across the faintest glimmer that the universe does what it does, and not what you think it ought to do, I succeeded.

Anybody who thinks economics doesn’t follow that same principle is advocating ruin, death, and chaos.

More Flintlocks, Less Crime

Friday, August 13th, 2010

Don B. Cates, writing at Cal Guns:

[The following is from an article that Carlyle Moody and I are writing on the theory that more guns in a society will cause more crime. This part of the article was written by Prof. Moody an economist at William & Mary College.]

If more guns cause murder, and more guns cause more murder, it would seem societies with no guns at all should be the safest possible states. There are few gun free societies in the world today. However, if we look back in history to the time before the invention of firearms, we can judge for ourselves whether those societies were tranquil and safe. Remarkably good homicide data is available for England, beginning in the 1200’s. Those data indicate a pre-gun homicide rate in England of roughly 20 per 100,000 [roughly four times greater than the U.S. today]

Firearms were introduced into England in the 1400’s and were in wide use by the 1500’s, coincident with a decline in the homicide rate to 15 per 100K. However these early guns were predominately of the matchlock design. This design featured a slow burning fuse held in a clamp at the end of a serpentine lever. When the trigger was pulled the clamp dropped down so that the end of the lit fuse touched the powder in the flash pan, firing the weapon. The design was simple and the weapons relatively inexpensive. The major problem with the design from the point of view of personal defense was that, because of the need for a lit fuse, the weapon could not be kept and carried loaded and primed for quick use against a sudden attack.

The first firearm that could be carried loaded and primed was the flintlock, introduced into England around 1630. In this design the fuse is replaced by a piece of flint. When the trigger is pulled the flint strikes a piece of steel producing a shower of sparks that ignite the powder in the flash pan. This technology persisted through the early 1800’s. While matchlocks were almost exclusively long guns, flintlock technology was readily adapted to produce handguns, which were particularly useful for self defense. The flintlock pistol was relatively inexpensive, could be comfortably carried, was ready for action in an instant, and did not require a great deal of physical strength or expertise to operate. The flintlock could be fired in an instant, making it the ideal self- defense weapon. Armed with a flintlock, the physically weak found themselves on an equal footing with the physically strong in a confrontation.

The introduction of the flintlock coincided with the largest decline in homicide in English history. The homicide rate plunged to 6 per 100K in the 1600’s. The English homicide rate continued to decline slowly and steadily until well into the 20th century. For example, in 1900 the homicide rate was 0.96 per 100K.

The last hundred years of English history tells the reverse story. The first modern gun law in England was the Pistols Act of 1903 which required Englishmen to purchase a permit in order to acquire a firearm. Since 1920, the English government’s policy has been ever more restrictive. The Firearms Control Act of 1920 imposed a true permit requirement to possess rifles as well as all types of pistols and empowered local authorities to determine if the applicant would be allowed to purchase arms. This permit requirement was administered progressively more stringently and was amended to increase restrictions over time in an attempt to reduce the civilian gun stock. The Prevention of Crime Act of 1953 and the Criminal Law Act of 1967 redefined the right to self defense more restrictively making any act of self defense potentially criminal. The Firearms Acts of 1968 and 1998 brought shotguns under strict regulation; the Firearm Act of 1997 effectively banned the private ownership of handguns and provided for the confiscation of all legally owned handguns.
According to the more guns more crime hypothesis, all this restriction of civilian guns should have resulted in England enjoying lower and lower rates of violent crime. Unfortunately, the facts reveal a pattern that is almost opposite. [as of 2000 England had twice the violent crime rate of the U.S.] and I are writing on the theory that more guns in a society will cause more crime. This part of the article was written by Prof. Moody an economist at William & Mary College.]

If more guns cause murder, and more guns cause more murder, it would seem societies with no guns at all should be the safest possible states. There are few gun free societies in the world today. However, if we look back in history to the time before the invention of firearms, we can judge for ourselves whether those societies were tranquil and safe. Remarkably good homicide data is available for England, beginning in the 1200’s. Those data indicate a pre-gun homicide rate in England of roughly 20 per 100,000 [roughly four times greater than the U.S. today]

Firearms were introduced into England in the 1400’s and were in wide use by the 1500’s, coincident with a decline in the homicide rate to 15 per 100K. However these early guns were predominately of the matchlock design. This design featured a slow burning fuse held in a clamp at the end of a serpentine lever. When the trigger was pulled the clamp dropped down so that the end of the lit fuse touched the powder in the flash pan, firing the weapon. The design was simple and the weapons relatively inexpensive. The major problem with the design from the point of view of personal defense was that, because of the need for a lit fuse, the weapon could not be kept and carried loaded and primed for quick use against a sudden attack.

The first firearm that could be carried loaded and primed was the flintlock, introduced into England around 1630. In this design the fuse is replaced by a piece of flint. When the trigger is pulled the flint strikes a piece of steel producing a shower of sparks that ignite the powder in the flash pan. This technology persisted through the early 1800’s. While matchlocks were almost exclusively long guns, flintlock technology was readily adapted to produce handguns, which were particularly useful for self defense. The flintlock pistol was relatively inexpensive, could be comfortably carried, was ready for action in an instant, and did not require a great deal of physical strength or expertise to operate. The flintlock could be fired in an instant, making it the ideal self- defense weapon. Armed with a flintlock, the physically weak found themselves on an equal footing with the physically strong in a confrontation.

The introduction of the flintlock coincided with the largest decline in homicide in English history. The homicide rate plunged to 6 per 100K in the 1600’s. The English homicide rate continued to decline slowly and steadily until well into the 20th century. For example, in 1900 the homicide rate was 0.96 per 100K.

The last hundred years of English history tells the reverse story. The first modern gun law in England was the Pistols Act of 1903 which required Englishmen to purchase a permit in order to acquire a firearm. Since 1920, the English government’s policy has been ever more restrictive. The Firearms Control Act of 1920 imposed a true permit requirement to possess rifles as well as all types of pistols and empowered local authorities to determine if the applicant would be allowed to purchase arms. This permit requirement was administered progressively more stringently and was amended to increase restrictions over time in an attempt to reduce the civilian gun stock. The Prevention of Crime Act of 1953 and the Criminal Law Act of 1967 redefined the right to self defense more restrictively making any act of self defense potentially criminal. The Firearms Acts of 1968 and 1998 brought shotguns under strict regulation; the Firearm Act of 1997 effectively banned the private ownership of handguns and provided for the confiscation of all legally owned handguns.
According to the more guns more crime hypothesis, all this restriction of civilian guns should have resulted in England enjoying lower and lower rates of violent crime. Unfortunately, the facts reveal a pattern that is almost opposite. [as of 2000 England had twice the violent crime rate of the U.S.]

[Emphasis in the original.]

Here it is again: the key tactic in any argument with a gun control advocate is to demand the citing of any instance where relaxing gun control laws has increased crime. And, I suspect, you can also do well by demanding the citing of any instance where imposing gun control on the general population has decreased crime. (The “on the general population” proviso is aimed at excepting closed, tightly controlled areas such as prisons. Presumably, most gun control advocates would not be willing to voluntarily live in a prison.)

===

Ack, I’ve lost the via.

QotD: Humility and Hubris

Wednesday, July 28th, 2010

Just something I needed to make a note of:

Two things, however, are clear about any religion that might derive from cybernetics and systems theory, ecology and natural history. First, that in the asking of questions, there will be no limit to our hubris; and second, that there shall always be humility in our acceptance of answers. In these two characteristics we shall be in sharp contrast with most of the religions of the world. They show little humility in their espousal of answers but great fear about the questions they will ask.

Gregory Bateson, Angels Fear

It’s Science: Facts Don’t Matter

Saturday, July 24th, 2010

In fact, facts may actually reinforce opposing assumptions.

It’s one of the great assumptions underlying modern democracy that an informed citizenry is preferable to an uninformed one. “Whenever the people are well-informed, they can be trusted with their own government,” Thomas Jefferson wrote in 1789. This notion, carried down through the years, underlies everything from humble political pamphlets to presidential debates to the very notion of a free press. Mankind may be crooked timber, as Kant put it, uniquely susceptible to ignorance and misinformation, but it’s an article of faith that knowledge is the best remedy. If people are furnished with the facts, they will be clearer thinkers and better citizens. If they are ignorant, facts will enlighten them. If they are mistaken, facts will set them straight.

In the end, truth will out. Won’t it?

Maybe not. Recently, a few political scientists have begun to discover a human tendency deeply discouraging to anyone with faith in the power of information. It’s this: Facts don’t necessarily have the power to change our minds. In fact, quite the opposite. In a series of studies in 2005 and 2006, researchers at the University of Michigan found that when misinformed people, particularly political partisans, were exposed to corrected facts in news stories, they rarely changed their minds. In fact, they often became even more strongly set in their beliefs. Facts, they found, were not curing misinformation. Like an underpowered antibiotic, facts could actually make misinformation even stronger.

More evidence that putting the educated elite in charge of our lives is a bad idea.

My sense is that academics and bureaucrats must be as susceptible to this as anyone else, perhaps even moreso, because they are, effectively, trained to think that they are right, and they are totally isolated from real world consequences if they are wrong. Instead, their assumption that the stupid ignorant mundanes just didn’t take their advice strongly enough, and so they must be forced.

Individuals may well fall victim to the problem, but if they act on false assumptions, they will fail, and they will not be able to force their failure on those around them.

I now propose Moore’s Arrow:

All sources of bias arising from education are arguments for reducing government power.

The only bulwark against this seems to be Popper’s discipline of falsifiability. This demonstrably works, however slowly and unreliably.

Frink: Tool for Thought

Friday, July 23rd, 2010

Frink is a calculator/programming language that keeps track of units. It also has a huge library of custom defined units to cover common calculations. For instance, the unit “water” stands for the density of water.

Here’s one of the example calculations from the documentation:

Fart Jokes

I received one of those endlessly-forwarded e-mails of dubious but “interesting facts” which said “if you fart continuously for 6 years and 9 months, you’ll have enough gas to create the equivalent of an atomic bomb.” Hee hee. Cute. (Thanks to Heather May Howard… being unable to easily calculate the veracity of this statement was one of the primary influences that showed how existing programs were too limited and inspired the creation of Frink.) But I didn’t believe it and wanted to check it. The Hiroshima bomb had a yield of 12.5 kilotons of TNT, which is a very small bomb by today’s standards. How many horsepower would that be?

12.5 kilotons TNT / (6 years + 9 months) -> horsepower
329.26013859711395

Can you produce a 329-horsepower blowtorch of a fart? I doubt it. That’s the power produced by a Corvette engine running just at its melting point. A one-second fart with that much power could blow me 1000 feet straight up. To produce that kind of energy, how much food would you have to eat a day?

12.5 kilotons TNT / (6 years + 9 months) -> Calories/day
5066811.55086559

Ummm… can you eat over 5 million Calories a day? (Again, note that these are food Calories with a capital ‘c’ which are equal to 1000 calories with a small ‘c’.) If you were a perfect fart factory, converting food energy into farts with 100% efficiency, and ate a normal 2000 Calories/day, how many years would it really take?

12.5 kilotons TNT / (2000 Calories/day) -> years
17100.488984171367

17,000 years is still a huge underestimate; I don’t know how much of your energy actually goes into fart production. Oh well. To continue the calculations, let’s guess your butthole has a diameter of 1 inch (no, you go measure it.) Let’s also guess that the gas you actually produce in a fart is only 1/10 as combustible as pure natural gas. What would be the velocity of the gas coming out?

12.5 kilotons TNT / natural_gas / (6 years + 9 months) / (pi (.5 in)^2) 10 -> mph
280.1590446203110

Nobody likes sitting next to a 280-mile-per-hour fart-machine. Lesson: Even the smallest atomic bombs are really unbelievably powerful and whoever originally calculated this isn’t any fun to be around if they really fart that much.

Fart jokes. Sheesh. If Frink isn’t a huge success, it’s not because I didn’t pander to the Lowest Common Denominator.

Frink is the 280-mile-per-hour fart-machine of calculators.

Frink makes it easy to think precisely.

Whip of the Year, So Far: Anthro Majors

Thursday, July 8th, 2010

Cue letters from anthropology majors complaining that this view of numerolinguistic development perpetuates a widespread myth. They get to write letters like that because when you're not getting a real science degree you have a lot of free time.

The whip is in the roll over text:

Cue letters from anthropology majors complaining that this view of numerolinguistic development perpetuates a widespread myth. They get to write letters like that because when you’re not getting a real science degree you have a lot of free time.

Of course, it’s not just anthropology; see my comment a few posts down about Truth.

The Rationalist’s Harry Potter

Wednesday, July 7th, 2010

[update]
AAAaaarrrrrrrgggghhhhh!

I just read the last chapter — and it’s not finished yet! I have to wait for Yukowsky to write more chapters!

I hope he’s doing more on a regular basis. Do not start reading this unless you are a masochist.

Yudkowsky, please stop wasting your time doing stupid stuff like trying to figure out how to give AIs a sense of ethics.

Finish the damn story!
[/update]

Harry Potter and the Methods of Rationality, by Eliezer Yudkowsky.

Via Eric S. Raymond. It’s useless quoting from the story itself, so let me just give you Raymond’s review:

Oh Thoth Trismegistus, oh Ma’at, oh Ganesha, oh sweet lady Eris…I have not laughed so hard in years!

Eliezer Yudkowsky is one of the brightest people I’ve ever met in a lifetime of seeking out gifted- to genius-grade thinkers because people who aren’t usually bore me pretty quickly. Eliezer has spent years studying the deep structure of rationality and probably understands the systematic sources of bias and irrationality in the shared architecture of the human mind as comprehensively as anyone alive. I have previously commented on some of his writings.

Usually Eliezer thinks about questions like how to build human-compatible ethical reasoning into AIs. Serious, deep stuff. When he turns the vast and imponderable force of his intellect to writing, of all things, Harry Potter fanfic, a quite unexpected degree of hilarity ensues.

Read it and laugh. Read it and learn. Eliezer re-invents Harry Potter as a skeptic genius who sets himself the task of figuring out just how all this “magic” stuff works. The science is real – it really would be a lot harder to explain transformation from a human into a cat than mere levitation, for example. When Harry, confronted with a magical time-travel device, is immediately terrified that he might be holding an antimatter bomb, this is actually a more justified fear than many readers may understand.

But the characters are not slighted. Eliezer is very good at giving them responses to the rather altered and powered-up Harry that are consistent with canon. The development of Minerva McGonagall is particularly fine.

Strongly recommended. And if you manage to learn about sources of cognitive bias like the Planning Fallacy and the Bystander Effect (among others) while your sides are hurting with laughter, so much the better.

It helps if you have some familiarity with the Potter cycle, but since that is itself a mish-mash of traditional child’s fantasy, you probably will recognize most what’s being built on here.

And it’s what’s being built that you need to read anyway. Gods, I wish I’d this when I was twelve.


No, wait: one quote from the story:

…It is a sad rule that whenever you are most in need of your art as a rationalist, that is when you are most likely to forget it.

How Transistors Really Work

Saturday, June 26th, 2010

Best, clearest explanation I’ve found for how the classic bipolar transistor works. No math.

When I went into engineering school, I found it extremely odd that there were still no good explanations of bipolar transistors. Sure, there were detailed mathematical treatments. Just multiply the Base current by “hfe” to obtain the Collector current. Or, treat the transistor as a two-port network with a system of equations inside. Ebers-Moll and all that. But these were similar to black-box circuits, and none of them said HOW a transistor works, how can a small current have any effect on a larger one???? And nobody else seemed curious. Everyone else in the class seemed to think that to memorize the equations was the same as learning concepts and gaining understanding of the device. (R. Feynman calls this the Euclidean or “Greek viewpoint;” the love of mathematics, as opposed to the physicists’ ” Babylonian viewpoint” where concepts are far more important than equations.) I’m a total Babylonian. For me, math is useless at the start, equations are like those black box Spice programs which might work great, but they don’t tell you any details of what’s happening inside a device in the real world.

Right On! And Oh Goody!

First of all, you must abandon the idea that current travels in transistors or flows inside of wires. Yes, you heard me right. Current does not flow. Electric current never flows, since an electric current is not a stuff. Electric current is a flow of something else. (Ask yourself this: what’s the stuff that flows in a river, is it called “current?” Or is it called “water?”)

Since a current is a flow of charge, the common expression “flow of current” should be avoided, since literally it means “flow of flow of charge.” – MODERN COLLEGE PHYSICS, Richards, Sears, Wehr, Zemanski

So what flows inside of wires?

The stuff that moves within wires is not named Electric Current. Intead it is called Electric Charge. It’s the charge that flows, never the current. And in rivers or in plumbing, it’s the water that flows, not the “current.” We cannot understand plumbing until we stop believing in a magical stuff called “current.” We must learn that “water” flows inside of pipes. The same is true with circuits. Wires are not full of current, they are full of charges that can move. Electric charge is real stuff; it can move around with a real velocity and a real direction. But electric current is not stuff. If we decide to ignore “current,” and then examine the behavior of moving charges in great detail, we can burn off the clouds of fog that block our understanding of electronics.

Second: the charges found within conductors do not push themselves along, but instead they’re pushed by potential difference; they’re pushed by the voltage-fields within the conductive material. Charges are not squirted out of the power supply as if the power supply was some sort of water tank. If you imagine that the charges leave through the positive or negative terminal of the power supply; and if you think that the charges then spread throughout the hollow pipes of the circuit, then you’ve made a fundamental mistake. Wires do not act like “empty electron-pipes.” A power supply does not supply any electrons. Power supplies certainly create currents, or they cause currents, but remember, we’re removing that word “current.” To create a flow of charges, a power supply does not inject any charges into the wires. The power supply is only a pump. A pump can supply a pumping pressure. Pumps never supply the water being pumped.

Third: have you discovered the big ‘secret’ of visualizing electric circuits?

ALL CONDUCTORS ARE ALREADY FULL OF CHARGE

Wires and silicon …both behave like pre-filled water pipes or water tanks. Electric circuits are based on full pipes. This simple idea is usually obscured by the phrase “power supplies create current,” or “current flows in wires.” We end up thinking that wires are like hollow pipes. We end up thinking that a mysterious substance called Current is flowing through them. Nope. (Once we get rid of that word “current,” we can discover fairly stunning insights into simple circuits, eh?)

If circuits are like plumbing, then none of the “pipes” of a circuit are ever empty.

I was taught to visualize a wire as a tube full of ping-pong balls. You push a ball in at one end, and another ball pops out at the other end. The actual speed at which individual balls (or in the case of electric current, electrons) move through the pipe is very much slower than how fast the impulse moves. (For electrons, this is called the drift rate, and is usually a few inches per second. The impulse is the speed of light. For ping pong balls, the impulse speed is the speed of sound.)
This is not empty nit-picking. This absolutely correct, and I’m pleased to finally grasp the distinction between “current” and “what flows”.

Now, get thee hence, and learn how one of the fundamental miracles of the age works.

JFK: Globalist

Sunday, June 13th, 2010

Well, this is going to be all over the place tomorrow:
Also, if you read his speech at Rice, all his arguments for going to the moon work equally well as arguments for blowing up the moon, sending cloned dinosaurs into space, or constructing a towering penis-shaped obelisk on Mars.

Andrew Wakefield, Vaccination Autism Panic Starter, No Longer a Doctor

Monday, May 24th, 2010

Andrew Wakefield, who pushed the idea that childhood vaccinations cause autism, resulting in many children being crippled or killed, has lost his British medical license. (He was never licensed to practice in the U.S.)

Rogue Medic is blunt, as is appropriate:

…[Anti-vaccinationists] claim that this is some sort of global conspiracy, the reality is much more simple. Andrew Wakefield was caught taking hundreds of thousands of pounds from lawyers to create evidence that would help the lawyers to sue vaccine companies for billions of pounds.

Andrew Wakefield’s defense?

He claims that his research – research that nobody else has been able to reproduce – is legitimate. When research cannot be reproduced there are two possibilities. Researcher error and researcher fraud.

The interpretation that is favorable to Andrew Wakefield is that he is just incompetent, since he is not able to recognize where he screwed up. The interpretation that is unfavorable is that he intentionally lied.

Andrew Wakefield lied.

Andrew Wakefield was paid a lot of money to lie.

Andrew Wakefield mistreated the children he used as research subjects.

Andrew Wakefield was trying to sell a vaccine to compete with the vaccine he was telling lies about.

Real doctors have recognized this fraud and had Andrew Wakefield’s fraudulent research retracted.

Real doctors have recognized this fraud and had Andrew Wakefield’s medical license revoked.

[bold in original]

The autism from vaccinations myth is life and death for your children, people. Read Grunt Doc’s take-down as if your children’s lives depended on it.