Jeff Duntemann's Contrapositive Diary Rotating Header Image

Creative Destruction (We Hope)

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I had hoped to write more about the Cayman Islands today, but we learned soon after rising that the Big Duntemann Concrete Project would begin elevenses. And so it did.

Those outside my inner circle know that we’ve been having concrete issues since four months after we moved in. Actually, as soon as the first big rain happened circa May 2004, our front walk caved in. The developer replaced it. We were good for a few months, but toward the end of 2004 the driveway started cracking. By early 2005 it was looking serious, and not long after it started looking serious, the developer vanished. (Coincidence!) So we had the driveway mudjacked at our own expense in the summer of 2005.

Peace reigned for a few years. By 2008 the driveway had begun to crack again, and by 2010 was rapidly descending into rubble. Carol was taking care of her mom in that era, so we didn’t have the bandwidth to confront the problem–and we were in Chicago as much as we were here. Just after the Taos Toolbox workshop in July 2011, the gas riser pipe on the street side of our gas meter cracked after being pulled down into the settling soil for seven years. Toward the end of 2011 we had to have the lower level slab mudjacked, which destroyed the carpeting and made a mess of our lower level generally. I pulled my left supinator badly trying to move boxes filled (carelessly) full of books. I like what we have on the lower level now, but man, getting here sucked.

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So at last we’re having the topside concrete bashed out and replaced. It was funny to watch the Bobcat jackhammer work on the concrete slab. In many spots, the bam-bam-bam was not sharp but hollow-sounding. After a few hits, the jackhammer tip broke through and went down five or six inches instantly, which suggests–nay, shouts–that there were six inches of dead air under the slab.

My driveway now looks like a bombing range, and will for what might be a couple of days yet. At some point (soon?) the dump trucks will come, schlep out the rubble, and then bring back roadbase fill to bring the area up to compaction code. After that, the rebar and the pouring can begin.

We’re having the front porch slab cut out and manually removed as well, which means that getting in and out of the house is going to be problematic for a few days, especially given Carol’s ongoing recuperation from three foot surgeries. The cars are parked on the street, and the freezer is reasonably full, as is the dog food bin. Concrete cocooning? Hey, I’ve got steaks, wine, red peppers, and a grill on the back deck.

We’re ready.

Odd Lots

  • This is where we stayed on Grand Cayman last week. Unless I misrecall, it was about $150 a night. Don’t forget that it was not air conditioned.
  • For deep reading, print may be the way to go, for reasons we don’t yet understand. In looking back a year or so, I realize that I generally read fiction on my Transformer Prime, and nonfiction on paper. It wasn’t a conscious decision–and may simply be due to a reluctance of nonfiction publishers to issue ebooks–but it was probably the correct one.
  • Here’s yet another reason why I’ve decided to let the Sun actually reach my skin.
  • It’s starting to look like diet has little or no effect on cancer risk. This has been my suspicion for a long time. Obesity, yes. Diet itself, no. (Thanks to Bruce Baker for the link.)
  • Ohh, Ancel Key’s beautiful wickedness is all starting to unravel. Saturated fat has nothing to do with heart disease. This has also been a suspicion of mine for some time, along with the suspicion that eating fat will make you lose weight more quickly than simply going low-carb. It certainly worked that way for me. I now weigh only eight pounds more than I did when I was 24, and a good deal of that is probably muscle I put on via ten years of weight training. (Thanks to Trevor Tompkins for the link.)
  • Interesting paper on why the Neanderthals died out. They didn’t necessarily die out becausethey were inferior. (Maybe they didn’t die out at all but are still here, pretending to be ugly Saps.) If I had to guess, I’d say their skulls got so big as to make childbirth problematic. But what were they doing with all that gray matter? (Thanks to Erik Hanson for the link.)
  • I stumbled on a year-old article that pretty much captures my reaction to weather.com. I will add, however, that weather.com beats the living hell out of The Weather Channel.
  • I’m still waiting for reports of cataclysmic pwnage on XP machines. The number “2000” comes to mind.
  • Speaking of which, I still need XP because my HP S20 slide scanner has no driver that will run on Windows 7. Haven’t tried the VM trick yet, but ultimately that’s the way I’ll have to go.
  • I knew there was a reason I only lived in Baltimore for 23 months.

Second Honeymoon, Part 1

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Yesterday evening, while on layover at George Bush International Airport in Houston, I was in the men’s room wondering whythehell they always put mirrors over urinals, when it hit me: I am now a person of melanin.

Really. I haven’t had a tan like this in I don’t know how long. We’ve been to Hawaii several times in recent years, but I always hid under a metric tonne of sunblock and came back as pasty as I left. Not this time. Carol and I just returned from a long-delayed expedition to the same resort (or what remains of it) where we stayed on our honeymoon in early October 1976. 38 years had not been kind to the resort, much of which was destroyed by Hurricane Ivan in 2004. The surviving beachfront cottages were sold for condos, and we rented one for the week.

We used sunblock sparingly. I actually sat out in the sun on our back deck in Colorado the week prior to the trip to get a little color. It was an experiment in mood management. This ugly frigid long winter had me in a bit of a funk, and I wanted to know if some vitamin D would improve my mood. I’m guessing that I got a serious load of vitamin D. Did it help my mood?

Well, my mood certainly improved. But between frolicking on a deserted beach with my transcendentally gorgeous forever girlfriend, flying kites together, drinking pina coladas at Rum Point, almost running into Baron Barracuda, and not doing much else of serious consequence for almost nine days (including not checking Facebook at all), well, I’m sure I don’t know.

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The two photos above of Carol flying kites are at almost precisely the same physical location, just 38 years apart. Did 38 years matter? Sure. We know and love each other immeasurably better than we did on our honeymoon. I’ve traded some hair for muscles I didn’t have when I was 24, but Carol, well, she hasn’t had to trade in anything at all.

Tomorrow: more stories and photos of The Week Without Either Air Conditioning or Facebook.

Jiminies, Like Dust

Just about everybody in the free world was disgusted by this news story, which describes a 15-year-old Pennsylvania boy with learning disabilities who was arrested and threatened with a felony for recording a video of several bullies who were taunting him. Go back and read that again. The school did nothing to discipline the bullies, but wanted to make a felon of the victim. The Wrath of Net then fell upon the worthless school, and without admitting what they’d done, they were kind enough to let the vicious, special-needs student slide. For filming the bullies who were tormenting him.

What the hell is going on here?

My first thought was that the bullies were school sports heroes. We inexplicably idolize jocks, and cut them a great deal of slack even when they’re being insufferable jerks. Ending team sports in schools would go a long way toward eliminating this problem, as I’ve suggested before. Well, I thought about it a little more and changed my mind. No, there’s more at stake here. Much more. And this is one time where I could have predicted it 22 years ago, but didn’t. My bad.

Back when I was editing PC Techniques/Visual Developer I wrote a number of editorials describing my vision of the computing future. I scored a few hits and a fair number of misses. I pretty much predicted Wikipedia in 1994. In 1992 I also predicted wearable computing, in the form of the Jiminy, a lapel-pin computer with 256 cores and 64 TB of storage. The Jiminy has imagers, and enough storage to record literally weeks of video. And all I could think to do with it is create a P2P network for passing queries around.

Silly boy. Readers tut-tutted my failure of imagination, and in the next issue of PC Techniques I went far beyond the Jiminy, and in an essay called “Computers, Like Dirt” I postulated free-range imaging nanocomputers the size of dirt particles. I don’t have that editorial OCRed and laid out yet, but here’s the last 200 words:

“Naked” nanocomputers will certainly have their uses. Imagine a device the size of a particle of dirt with one face an image sensor. The rest of the device is a bucket-brigade image storage system that stores millions of images, clocking in a new one every second, or minute, or hour, in effect taking “movies” lasting hours, days, or years. Now imagine untold trillions of these little camcorders released into the environment and carried by the winds to every corner of the earth.

No matter where you go, the very dirt on the street is taking your picture. Even in your own home, the dust that Mr. Byte tracks in watches your arguments, your deceits, literally your every move, at 5000 X 5000 resolution.

Want to solve a crime? Go back to the murder site and dig a thimbleful of dust from several points, and you’ve got millions of movies of the murder as it happened. Rob a bank and the dirt on the floor convicts you. Cleanliness is statistical; no matter how clean an environment, the dust is there somewhere.

Nanocomputers could make it impossible to commit crimes of any sort undetected…or to keep secrets of any kind at all. Virtue imposed by the dust on the wind: How’s that for an endpoint to the evolution of computing?

Scared yet? I wasn’t back in 1992…probably because I assumed I’d be dead long before anything like this came about. But now we’ve got Google Glass, dashcams, copcams, and lots of other mechanisms that basically do nothing but sit around taking pictures all…the…time.

This is what the schools are afraid of. And as much a critic as I am of knuckleheaded public school administrators, I can almost feel their pain here. Nearly everybody has some bitch about our schools and colleges, all of them different, but every one a complaint. The schools are afraid we’ll sue them for doing something, or doing nothing, where “nothing” and “something” embrace everything. Nor are lawsuits necessary. If thousands of students each with hundreds of friends begin to engage in Internet vigilantism, the schools cannot help but lose, and lose big. If every student has a Jiminy on their lapels and a legal right to take pictures of everything that goes on around them, there will be no dodging administrator or teacher misfeasance or malfeasance. Even if the schools get such things outlawed (which they will desperately try to do, and in some places like Pennsylvania they already have) illicit videos of bullies and misbehaving admins or teachers will reach the Net and thus become eternal. Education as a whole would change radically.

As would a lot of other things, few of which I (or anyone else) can predict. I may leave it to your imagination. I will go out on a limb and postulate a quieter, more deliberate, and much more polite sort of world, because no behavior could ever be reliably hidden. I doubt it’ll happen while I’m still around, but by Jiminy, we’re moving slowly but inexorably in that direction. Better behave, guys–because everybody will be watching.

Odd Lots

  • This exploit isn’t new, but may be the most devilish thing I’ve seen in a couple of years: Using the Unicode “right-to-left override” character in a filename to make a .exe file look like a .pdf, a .jpg, .txt, or anything else. Double-click on that PDF, and you’ll get pwned…because it isn’t a PDF.
  • Working 16-hour days and sleeping a couple of hours under your desk may contribute to the high percentage of failures among startups. Basically, people who short on sleep think dumb thoughts and chase dumb ideas. They seem to wear their wilfull sleeplessness like a badge of honor, even as it kills their startups. Or themselves.
  • Note the near-obligatory Ekirch reference in the above article. I’ve still not found much evidence for his theory of “divided sleep” outside of his own book, but the guy gets citations all over the place.
  • This article on food myths is less interesting than the comments, which generally confirm my conclusion (having seen lots of similar comment sections) that nobody really knows what healthy eating is. (Thanks to Roy Harvey for the link.)
  • My own advice runs like this, with no apologies whatsoever to Michael Pollan: Eat food. Not too much. And sometimes plants.
  • Much activity in this realm recently. Bruce Baker sends this link from the New York Times . Comments section very similar. The whole field, in fact, is a virtual food fight. Proving you’re right by insulting your opponents is very in right now, especially on Facebook.
  • Neil Rest sends a link suggesting that exposure to bright light in the morning lowers BMI. Now, I think BMI itself is bogus–the metric doesn’t differentiate between fat and muscle, sheesh!–but if morning sunlight does indeed goose metabolism, getting out in the sun is a good thing. We should be cautious here: It’s been established that losing sleep does promote weight gain, and it’s mostly night people who lose sleep.
  • Name brand diet soda sales are in free-fall. I think that this is less about health and more about cost: People are probably reacting to price hikes from Big Soda over the past couple of years by moving to house brands from Wal-Mart and the major grocery chains.
  • House brands are a fascinating business, and there’s very little out there on how this titanic but virtually invisible industry operates. Who makes the Cheerios that aren’t Cheerios?
  • Is the Internet taking away religious faith? Hardly. What it’s doing is providing secular religions (like political ideology) to satisfy the tribal hunger of the 50% whose disaffiliation from organized religion can’t be explained in other ways. Tribal ideology is cheap (no churches or clergy to support) and once you’ve given yourself permission to hate others who differ from you, it provides the perfect excuse.

Ask the Man Who Has One. Or Seventeen.

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Computers suck. Ask the man who has one. Or seventeen.

You haven’t seen much from me lately because I began the XP rampdown a little too late to be calm and systematic about it. It wasn’t evolution, nor upgrading. It was demolition. I will probably be tinkering with the rubble for a good long while, but the explosions have for the most part occurred where and how I intended them.

Before I get into that, take a look at the photo above. I use the Dell SK-8135 keyboard everywhere I don’t need one of my precious Northgates, and I destroyed one a couple of weeks ago by literally dropping a computer on it. (I don’t know if the SX270 got hurt. It’s now in somebody’s recycle pile, and will not trouble this world again.) That left me with no spares, so I ordered a couple of used ones from a surplus house. Both arrived the other day…with logins and passwords taped to their undersides. Heartbleed? We don’t need no steeking Heartbleed…

So we return to the XP crater. The smoke is clearing. Both of Carol’s machines are now used but spotless Optiplex 780s running Win7. My GX620 USFF upgraded to Win7 without a whole lot of argument. My quadcore now has a newer and much larger SSD, plus a new card reader and four new USB ports on the front panel. My new Dell e6400 laptop was a Win7 slab from the outset. I got rid of four SX270s, plus a couple of old Pentium 3 mini-towers that followed me home years ago and refused to leave. I was about to recycle my dead 2001 Thinkpad X21, then plugged it in, scratched my chin, shoved the hard disk solidly into its slot, and boom! Windows 2000 said hi to me for the first time since early 2005. The X21 remains my favorite laptop of all time. Still not sure what to do about that.

There were driver problems, not that that came as a complete surprise. Both my HP 5370C flatbed scanner and my OpticBook flatbed edge scanner came with drivers that refused to install. (Interestingly, my even older HP PhotoSmart S20 slide scanner installed without any grumbling.) HP’s 5370C driver was an abomination even when it was new. The 5370C is a freaking scanner, for cripe’s sake. Why does it need twenty-five assorted DLLs, OCXs, and other dubious squidlies in order to function? Well, I’m in the thick of scanning a lot of paper records for offsite storage, and I needed that scanner bad. What I ended up doing turned out to be a bit of a wonder: I bought the Pro version of VueScan. It rankled me a little at first to have to spend $80 to reclaim a scanner I paid for twelve years ago. That said, what VueScan gave me was marvelous: A common UI for every scanner in the house. (VueScan supports the S20 as well.) The product is well worth the money. It comes with a reasonably literate 111-page user guide, and there’s a book about it too. The book’s on order, and so far I’ve been able to find my way around by (gasp) reading the manual, with less head-banging than I expected. The list of scanners supported by VueScan is boggling. If I ever need to get another scanner, I won’t have to screw with psychotic vendor drivers, nor learn any needlessly different vendor UIs.

Win a program, lose a program. I have a little utility called Jasc Image Commander that’s been with me since the midlate 90s. All I use it for is to crop, resize, rotate, and adjust color on pictures for Contra. Alas, Win7 will have no part of it. Bummer. I installed FastStone and IrfanView and am trying to decide which to keep. Both are more complex than I need, but I’ve used them both before and the jump won’t be too traumatic. So far, IrfanView has the edge.

Win7 itself wasn’t that big a deal. I still have a couple of head-scratchers on the list. The e6400 simply will not join my homegroup. I’ll come back to that once I study up a little on homegroups. I have a weird impression that Win7 is dropping keystrokes on me when I type quickly–and as most of my friends are aware, I type very quickly. This may in part be due to the PS/2-USB keyboard converter that allows me to use a 1991 Northgate on a machine without a PS/2 keyboard connector. Don’t know. Will continue to research it.

I may put XP in a VM in case I need it for something. I’m also keeping one XP-based SX270, not for the sake of XP but because it’s the only machine in the house that can read floppies and Zip disks. Who still has floppies and Zip disks? I do. And they wander in sometimes carrying interesting things.

Still, for the most part, it’s done. Sure, I should have begun sooner. Yeah, I’ll miss XP a little. I won’t miss the boxloads of old hardware that the switchover finally motivated me to dump. And boy, am I looking forward to moving on to more entertaining projects than this!

Odd Lots

  • Hats off to T. C. Chua, who figured out how to make Zoundry Raven work with IE9+. Raven uses IE’s WYSIWYG editor, and changes made to the editor with IE9 breaks the program completely. Zoundry is open-source and hasn’t been updated since 2008. Mr. Chua traced through the Python code, found the problem, fixed it, and built an .EXE out of the Python code. He’s made it available here. I’ve used Raven to edit and post Contra entries since 2008, and didn’t feel like chasing down some new blog editor now that I’ve moved to Win7. Bravo!
  • Vegetarian diets are not as healthy as we’ve been led to believe. Make sure you scroll down to Table 3 and get a look at the figures for cancer. Now, some thrive on vegetarian diets and many don’t. What the research doesn’t appear to take into account is “lifestyle panic,” which is severe anxiety that some (usually minor) aspect of your life will kill you. If worry about your diet turns your life into a cortisol thrill ride, your diet won’t help you, and it certainly won’t be what killed you.
  • Mars reaches opposition on April 8, and the best day for observing it is April 14. Actually, any time within a week or two of those dates will provide a pretty good show, especially if you have even a smallish telescope. Such opportunities happen roughly every two years, so catch it now or wait until 2016!
  • Wearable computing has never really set the world on fire, and here’s a reasonably honest assessment as to why. I already have one computer in my pocket, and that’s plenty.
  • A GoPro-packing RC flying wing. Makes kites look kind of lame, but lame is what I have on hand, and lame is how I’m going to fly my GoPro this spring. If we ever get a spring. (6″ of sloppy stuff this morning; would have been 15″ had it been ten degrees colder.)
  • Cores (the other kind of cores) like dust.
  • My instance of the Gallery photo server is pretty much dead, and I’ve begun migrating photos to Flickr. Here’s my photostream link, and my three sets so far. I’m not yet an ace at the system by any means, but with some practice I’ll get everything interesting up there.
  • Ok. Precision marshmallow toasting is cool. Just don’t get nuts and melt the mallow into the machinery.
  • I study climate, in general to support a fiction concept I’m working on, but I don’t talk about it here because I don’t like to trigger the sort of slobbering tribal hatred that any such discussion invariably involves. This is an interesting (if depressing) psychological phenomenon all by itself. (Thanks to Trevor Thompkins for the link.)
  • This turned up on April 1, but like all the best hoaxes, it is nowhere clear that it’s actually a hoax. So is it? (Thanks to Esther Schindler for the link.)
  • The world’s smallest volcano was maybe just a little easier to suss out…

Cranking Up the GRC-109 R-1004

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While everybody else yesterday was running around looking for foot bras and the world’s smallest volcano (more on which in the next Odd Lots) I was tidying up my shop/shack, and pulled down my AN/GRC-109 Special Forces radio system. I’ve had it since the mid-1990s, but hadn’t fired it up literally since we left Arizona in 2003. I don’t have the full list of accessories so I had to do a little lashing-up to get the R-1004 receiver connected. It didn’t disappoint me.

I have the CW-only T-784 transmitter as well. I don’t use it because I’ve largely lost my CW chops and the only guys still pounding brass are whistling along at 20+ WPM. Not having an antenna that won’t set off my security system is the other issue. (Shielding the heat sensor it triggers it is not an option due to insurance regs.) My outdoor dipole will go up as soon as we have a few leaves on the tress, whenever that actually happens.

So. What we have here is a vintage all-tube spy radio, where the spies either have stealth jeeps or very strong backs. The design came out of the CIA in the late 1940s, and was adapted for more general use in the 1950s. It was used until the end of the Vietnam War. The receiver weighs 8.75 pounds all by itself. The PP-2684 power supply will weigh you down another 25 pounds or so. (There’s a lighter, smaller power supply, the PP-2685, that I don’t have.) The receiver uses conventional 7-pin miniature battery-filament tubes in a fairly simple superhet circuit. The only glitch there is the 1L6 converter tube, which is hard to find and costs a small fortune when you find it. The 1L6 is scarce enough so that people have designed solid-state replacements for it.

The R-1004 tunes from 3 MHz to 24 MHz in three bands. Selectivity is good, hardly single-signal but a reasonable compromise for a set designed to receive both AM and CW. I had to grin at how spoiled I’ve gotten by modern digital rigs like my IC-736, which can tell you to a single cycle where you are. The dial is pretty accurate, reading bang-on for WWV at 5 and 10 MHz, but it’s a wide dial, and lacks a vernier. Sensitivity seems lower on the 12-24 MHz band. No matter; in the evenings all the action is at 12 MHz and down.

SSB was still pretty exotic when the R1004 was designed, and yet its BFO is solid enough that I didn’t have to “chase” sideband signals on 40 and 75 meters with either the tuner or the BFO knob. AM quality was good, considering that it has caps to roll off audio response past 3 KHz. I tuned the entire range from 12 MHz down to 3, stopping at the ham bands or anything else unusual. I used to do that a lot before I was licensed as WN9MQY in 1973. I was hoping to find a numbers station (are there still numbers stations?) or one of those long-extinct semi-musical beacons that I used to hear in 1965. SWBC hasn’t really changed much since 1970: Christian stations, national stations, some German and French, and a lot of things too far down in the noise to quite make out. Canadian time station CHU is no longer on 7335 KHz, but a quick Google check pointed me to its new location at 7850 KHz. I listened to an AM net on 7290, and was startled when K5MIL’s big signal came up and forced me to turn down the gain–he’s only 5 miles north of me, and running a fair bit of power.

Talk about old times, whew.

My R-1004 hasn’t seen much hard use; I’d almost call it pristine. Serial number 25. By contrast, the power supply has been around the block–or maybe the world–a few times, and when I bought it I had to do some fussy needle-file work to get the corrosion off the power connectors. It sounds goofy, but I love how this gear smells: bakelite and black rubber, with undercurrents of oil and perhaps solder flux. (Radio terroir!) If ever there were a canonical Dieselpunk radio, well, here it is. My only gripe is that my high-Z “cans” headset gave me a headache after squeezing my ears for an hour, and I really need to lash up an audio transformer to take the R-1004’s 4000 ohm output impedence down to whatever my cushy padded headset likes. I’ve done this before, but alas, the adapter unit (built into a 70s contacts case I got from Carol) is hiding somewhere.

No matter. You’ve seen my shop and my collection; it will be done. When we can manage a nerd party here sometime this summer, I’ll put it out on the deck and drop a wire over the edge if I haven’t done so already. Put the black thing up against your ear, young’un: That’s what the Internet was when I was mowing the lawn and not chasing you off of it!

Daywander

This entry will be a hodgepodge, or as they say in some circles, a “hotch potch.” (I think it’s a Britishism; Colin Wilson used that spelling many times.) Stuff has been piling up in the Contra file. Carol and I have been slighting housework for these past six months, she laid up after surgery on both feet, and me writing what has doubtless been the most difficult half-a-book I’ve ever written. We’ve been cleaning up, putting away, and generally getting back to real life. Real life never tasted so delicious.

One reason is rum horchata. I’m not one for hard liquor, mostly, and generally drink wine. (Beer tastes far too bitter to me.) But Rumchata got me in a second. It’s a dessert cordial no stronger than wine, with the result that you can actually taste the other ingredients, like vanilla, cream, and cinnamon. Highly recommended.

People ask me periodically what I’ve been reading. After soaking my behind in computer science for the past six or eight months, I’ve been studiously avoiding technology books. That said, I do endorse Degunking Windows 7 by my former co-author Joli Ballew. I actually used it to learn some of the Win7 details that weren’t obvious from beating my head on the OS. I wish it were a Coriolis book, but alas, it’s not. That doesn’t mean it’s not terrific.

True to my random inborn curiosity about everything except sports and opera, I’ve developed an interest in the chalk figures of southern England. The next time we get over there (soon, I hope, though probably not until summer 2015) we’re going to catch the Long Man of Wilmington, the White Horse of Uffington, and that very well hung (40 feet!) Cerne Giant. Other chalk figures exist, many of them horses. Some can be seen from Google Earth. A reasonable and cheap intro is Lost Gods of Albion by Paul Newman. The book’s been remaindered, and you can get a new hardcover for $3. I wouldn’t pay full price for it, but it was worth the hour and change it took to read. My primary complaint? It needs more pictures of chalk figures, duhh.

Quick aside: While researching kite aerial photography with my found-in-the-bushes GoPro Hero2 sports camera, I came upon an impressive video of the White Horse of Westbury taken from a double bow kite (rokkaku). I have the cam, and loads of kites. All I need now is a chalk figure. (I suspect I could coerce my nieces into drawing one for me.)

Far more interesting than Lost Gods of Albion was Gogmagog by Thomas Lethbridge. I lucked into a copy of the 1957 hardcover fairly cheap, but availability is spotty and you may have to do some sniffing around. If you’re willing to believe him, Lethbridge did an interesting thing back in the 1950s: He took a 19th century report that a chalk giant existed on a hillside in Wandlebury (near Cambridge) and went looking for it. His technique was dogged but straightforward: For months on end, he wandered around the hillside with a half-inch metal bar ground to a point, shoving it into the ground and recording how far it went in before it struck hard chalk. His reasoning was that the outlines of a chalk figure would be dug into the chalk, and thus farther down than undisturbed chalk. In time he had literally tens of thousands of data points, and used them to assemble a startling image of two gods, a goddess, a chariot, and a peculiar horse of the same sort as the Uffington White Horse.

Not everybody was convinced. Even though Lethbridge was a trained archaeologist, his critics claimed that he was a victim of pareidolia, and simply seeing the patterns he wanted to see in his thousands of hillside holes. The real problem was that Lethbridge was a pendulum dowser, and a vocal one: He published several books on the subject, which make a lot of claims that aren’t easily corroborated. Lethbridge claims that most people can dowse, and hey, it’s an experiment that I could make, if I decided it was worth the time. (It probably isn’t.)

The third book in my recent readings is The Physical Phenomena of Mysticism by Herbert Thurston, a Jesuit priest who spent a good part of his life collecting reports of peculiarly Catholic weirdnesses (stigmata, levitation, inedia, odor of sanctity, etc.) and presenting them in a manner similar to that of Charles Fort, if better written. Most of the articles were originally published in obscure theology journals, but were collected in 1952 in a volume that I’ve never seen for less than $100. Last year it was finally reprinted by White Crow Books and can be had for $18. I’m not sure what one can say about reports of people who have not eaten for forty years. Mysticism is a weird business, but physics is physics. The book is entertaining, and it’s given me some ideas for stories, particularly since I have a spiritually butt-kicking psychic little old Polish lady as a major chartacter in Old Catholics. (Vampires are just so 2007.)

If three books doesn’t seem like much, consider my habit of going back to books I’ve read and liked, and flipping through them to see what notations I’ve made in the margins. We all make them; when was the last time you deliberately went back to read and reconsider them? I’ve been dipping into Gary Taubes’ Good Calories, Bad Calories, Steven Pinker’s The Better Angels of Our Nature, Colin Wilson’s A Criminal History of Mankind, and Matt Ridley’s The Rational Optimist, and arguing with my own marginal notes. One can learn things arguing with oneself, and I’ve been known to change my mind based on things I scribbled in other people’s book’s ten or twelve years ago. (Before that I was too young to have anything like informed opinions.)

For example, I’ve gone back to calling it “global warming.” Climate is always changing, and the assumption that we know all the forces propelling those changes is just wrong–and in tribalist hands, willfully dishonest. Carbon dioxide has exactly one climate trick in its bag: It warms the atmosphere. That’s it. If the discussion is about carbon dioxide, it’s about global warming. Why climate changes is still so poorly understood (and so polluted by political hatred) that we may be decades before we even know what the major forcings are. In the meantime, I want predictions. If your model gives you climate data out fifty years, it will give you data out five. Publish those predictions. And if they prove wrong, be one of those people who really do #*%^*ing love science and admit it. Being wrong is how science works. Being political is how science dies.

I have a long-delayed electronics project back on the bench: Lee Hart’s CDP1802 Membership Card. I started it last summer, and set it aside when the Raspberry Pi gig turned up. It’s basically a COSMAC Elf in an Altoids tin. I had an Elf almost forty years ago. I programmed it in binary because that’s all there was in 1976. And y’know? I can still do it: F8 FF A2. F8 47 A5…

Some things really are eternal.

More on the Dell Optiplex 780

Not a great deal of time today, but I realized I left out an important fact about the Dell 780, and presumably the other USFF machines in the same case like the 980: The all-in-one mount is not VESA compatible, and will only take Dell monitors. The all-in-one mounts for the two earlier USFF case styles (SX270 and SX280) took any 10cm VESA monitor. The flipside is true, too: More recent Dell monitors are not VESA compatible, and use the same proprietary tab-and-button mount as the 780-family all-in-one mount. Be careful when you’re assembling a refurb system. Not everything from Dell fits everthing else from Dell.

That said, if you’re going to use a Dell LCD monitor, Dell has a very nice amplified speaker bar that clips securely to the bottom edge of the monitor. It’s the AS501, and you can get NOS units from eBay for $15 shipped. All of the Dell UltraSharp monitors that I have here provide a 5V barrel jack on the back of the monitor to power the AS501. Very good fidelity, and certainly sufficient volume for puttering around your office or workshop. The 780 contains a tiny internal speaker, roughly equivalent to the one in the SX280, but it’s not good for much beyond notification sounds.