Intel's Ronler Acres Plant

Silicon Forest
If the type is too small, Ctrl+ is your friend

Sunday, March 4, 2018

Stevens Chart Recorders


Stevens Chart Recorders

Got an email from my old employer - Stevens Water Monitoring Systems, Inc. announcing the last build of their chart recorders. Chart recorders were the mainstay of their business for most of the last century, but electronical gizmos are pushing them off the stage.

Drawing of complete chart recorder
These old chart recorders were little marvels of mechanical engineering. The pen moves back and forth, driven by a wheel connected to a float. The paper is driven by a clockwork mechanism that only needed to be wound every six months, when the USGS field guy came by to change the paper. It was conceptually simple, but there are hundreds of little details that made the machine reliable and effective. They are also expensive. I think they cost something like five or ten thousand dollars.

The have been mostly replaced by electronic sensors, electronic data loggers, like the DOT Logger, and radios, like the GHT. Loggers and radios are fairly commonplace these days, but the sensors are still something of a black art. Mostly they use water pressure, and when you want to know the level of a body of water to within an inch, your pressure sensitivity needs to be very high. One inch of water spread over ten square miles of lake is a stink load of water.

Motorcycle of the Day

2018 Harley-Davidson Soft Tail Fat Bob
Iaman reports from Texas:
I saw a 2018 Harley Davidson Fat Bob like this in Marble Falls.
I was at a park reading the paper.  Couple guys drive up on these.  Long, squat, aluminy, shiny, solid metal wheels, impressive bike to my discerning eye.
Googling I find they are $20,000, 650 lbs, seat height is 28 inches.
One of the guys, my age, looked exhausted like he had ridden 600 mile instead of the 60 he claimed.
That age would be "old", according to the whippersnappers.

Looking at the seat it occured to me it would be good for shorter passengers in that they would be able to see over the driver's shoulder, but not so good if they were of equal height because it would make it difficult to duck out of the wind.

Saturday, March 3, 2018

Speed of Light

Escaping Photons
Run, photons, run!
Question on Quora: Why don't physicists talk about the acceleration of light?

My answer: Because light only exists when it is traveling, and when it is traveling it is always traveling at the speed of light. Light does not accelerate. It comes into existence traveling at full speed.

Which got me wondering just how that happens. You have an atom in a highly excited state, and one electron decides it has had enough of being overly-excited and releases a quanta of energy and falls down one energy level. And that quanta of energy immediately leaves at the speed of light. It's just weird, man.

Friday, March 2, 2018

Guns

The Beretta M9, the U.S. Military sidearm since 1985
I seldom go shooting any more, but I still like guns. They can be dangerous if they are handled carelessly. Note that there are various degrees of carelessness. There is the unthinking kind where a person picks up a gun and treats it like any other manufactured object like a coffee cup or a wrench. Sure, a coffee cup or a wrench could be a lethal weapon, but you would need to put some effort into your actions to make them such. All it takes with a loaded gun is to point it in the wrong direction and just bump the trigger and you have disaster on your hands. It is this ability their ability to unleash mayhem at a moment's notice that requires extreme care by people handling them.

Then there is the other kind of careless where a person is fully cognizant of what the gun they are holding can do, but they just don't care about any of the people they are pointing the gun at. They do not care, they are care-less.

Caring about other people is something pretty much all societies try to inculcate in their people. People outside their society might not get the same treatment. An individual's attitude will have a big effect on who they care for and those for whom they callously disregard. And then we have propaganda blaring hate for the 'enemy'. People can decide whether to be caring or callous, though their conditioning and their emotions may outweigh any attempt at rational decision making.

But back to guns. I was fascinated by them for a long time, and they are still interesting and fun to shoot. I particularly enjoy sorting out the mechanical complexity of their internal workings. A great many people have gone to a great deal of trouble to design and build these things. I like to think I could do it myself if need be, but fortunately there are plenty of well designed and well built guns already available so I can just buy what I want. It is much, much easier to buy one than to have to build it. Sure there is more satisfaction in building something yourself, but I have other things to do, like advise (kibitz) Jack about his latest machining project.

And then I hear the news about the world and the economy and I wonder if I should be buying gold instead of stocks and bonds or real estate, and then I realize that there is another very base reason that people have for holding on to their guns. There is a very real possibility that for no fault of your own, the powers that be will force you into an untenable position. You could easily lose your house, you job, the government  (or some criminal) could steal everything you own, and leave you with nothing. But if you have a gun and some ammunition and a callous disregard for everyone else, and not much care about yourself, you can go out get and what you need. You might not survive, you might end up in prison, but you will know that at least you tried. Of course, if push comes to shove you might not be able to cast aside your conditioning and put on your overcoat of callous disregard and actually do something. But if you have a gun you can at least imagine that you could.

Glenn Hauser's World of Radio

A story about The Tor Project got me looking into Voice of America which, through many twists and turns led me to Glenn Hauser's World of Radio. Poking around I came across a passel of QSL Cards, some of which are pretty cool, so I'm posting them here.

Radio Sofia, Bulgaria

Egyptian Broadcasting, Cairo

KVOH Los Angeles

Radio Club Mozambique

Radio Station Peace and Progress, Soviet Union

Voice of America, Rhodes, Greece

Radio Portugal

Thursday, March 1, 2018

Joke of the Day

The Trump administration is like the International Space Station.
They're in constant free fall, and they needed Russia's help to get there.

Via Reddit

Wednesday, February 28, 2018

Don't Blink


Awesome Christopher Walken Impressions
Natalie Hubert

Last week, or maybe the week before, we're watching the Olympics on TV, in particular we're watching men's figure skating. Some of these guys are what Arnold would call girly-men, and that's fine, we want to see what they can do on skates. Adam Rippon finishes his performance and he's walking away and he blinks his eyes and the way he does it, I think it was the speed, it was slower than normal maybe. Whatever. In any case, I see that and my brain immediately registers him as a woman. I mean, there was no thinking involved. I saw that and my brain immediately concluded 'woman'.

I've asked several people about this and none of them have recognized this phenomena.

Anyway, I'm looking for any kind of supporting evidence and I'm not finding any, but I found the above, which kind of gives you an idea of what makes Christopher Walken so unique. Blinking has got nothing to do with it.

Update November 2025 replace missing video with one with the same title.