Friday, September 25, 2015

Tectonic Plates

Hm. I seem to recall I got very productive after the last time I had surgery. I guess they are right that fear of death does a remarkable job of focusing the mind. I got a lot done this week.

I'm working four waxes. Two figures, one bas relief for glass casting, one just a regular machinerette casting. I'll post pics when they are more complete.

I got access to ceramic decal sheets. They are like regular decals that you would put on plastic models. These, though, burn clean with no residue. As it turns out inkjet printer ink holds up nicely to Cone 5 firing. So, I'm making two big plates, and have designs ready for the decals.

Here's one:

Here's the other:


Hokey? Yes. So what?

Thursday, September 24, 2015

"Lost Wax" Bronze Casting from 3D Printed Piece

Last week, I took a free class at the public library on 3D printing.

COMMUNISM!

The library has a Makerbot Mini, and the class was using software called Tinkercad, by Autodesk. I've played with Google Sketchup as well. Tinkercad is super easy to use and I skipped ahead several lessons during the class to get to the good stuff. Didn't really make anything I wanted to print off. And, in fact, not really sure at this stage what I would use for, except maybe as an offering for my students.

Obviously, the plastic pieces could be Old Skooled into molds for waxes, with the digital file as the master. It's nice to mix old and new, even nicer to get old stuff to do new stuff.

The librarian teacher said the plastic was actually polylactic acid, which is meltable and burnable. I said I do metal casting at Harper College, give me a piece and I'll cast it in metal and you can show it off in future classes.

He gave me a knight chess piece. So, I invested it in a jewelry flask, burned it out and spin cast in bronze. Nothing at all new there. Shapeways does this all the time.

So, I treated it like lost wax with same burnout schedule. Heat to 400F, hold for two hours, heat to 1350F to burn out carbon, hold for 1 hour, cool to 900F and cast. The librarian told me the piece took two hours to print. I probably could have carved it in an hour. Total time from plastic to metal was 1 day (overnight).

Here it is:

Here is a close-up of the piece. Got a nice laminar look to it. You can see the "granularity" or resolution is about .2 mm.

Could have done a better job of spruing so it didn't have defects, but what the hey, it's rapid prototyping. I don't know where this 3D printing stuff will go. Could be a fad. For all we know, they'll get a bioenigneered tank of bacterial slime or coral reef to grow all this Thingiverse stuff just as easily.

But in the meantime, fun!

Wednesday, September 23, 2015

The Infernal Machine

I'm going to give you two maxims, perhaps three. The first is from someone you've never heard of, the second is not strictly a maxim, more of a quote, but can be treated as a 'short, pithy statement expressing a general truth or rule of conduct'. So, then, the first:
"No subsequent amount of steps will fix a fucked-up first step" - Newman's Maxim
and the second?
"Do it right the first time? NOTHING is done right the first time!" - God Almighty
The third one? We may or may not get to that.

The one thing right off the bat we should do is envision the Almighty as an American God. As such, He was a bit of a old-fashioned country gentleman, but also not above being a tinkerer or low mechanick (and so not quite a true gentleman), with a charming touch of slight bumbler mixed in, and perhaps a dash of an humbug as well, along the lines of an old Kansas carny huckster.

The Almighty, of course, didn't look like any of these things. He was quite an imposing figure when he wanted to be. But, puttering around in the workshop of his weathered old shed seated in tall weeds out back of His estate, dressed up in sweaty coveralls, with occasionally some axle grease smeared on his forehead, or perhaps some residue of magic flash powder covering his face, his eyes out starting from a surprised raccoon bandit mask, He looked less the Almighty and more of a, well, a mad scientist, I suppose.

His Host of field angels, slaving happily in the eternal sunshine, rows and rows of verdant and plentiful ambrosia and manna to be picked, often wondered why He spent so much time in the shack out back. His house angels knew better as to the reason why: the Almighty was laboring mightily on getting all of Creation going. He'd had rather a hard time of it, an infinite time in fact, as evidenced by the endless remnants and discards of previous attempts that lay exposed in the unkempt yard around the shack, some overgrown by weeds, others just barely starting to be covered, but all of them never quite the same or up to snuff.

And at the end of each Day, He would retire to His palatial mansion, cleaned up and dressed in sparkling white evening attire, enjoy an ice cold glass of Nectar served by the mistress of His Household (and frequent bedmate), sigh and say "Gonna lick it tomorrow for sure, Lucifer!"
The Almighty and Lucifer in better times.
And yes, they do look like Barbara Stanwyck and George Brent

And sure enough, one day, working on the Infinity Plus Oneth device, which refused to work, He got it. It first sat there all stardust and base metal, gears, flywheels, pistons, screws and levers and inclined planes, all topped by rotary brass-balled governors that sat motionless like a dumbshit.

"Son of a - " He muttered in frustration, wishing He had some deity of His own to use for a curse. Scratching His forehead, He did what He always did at this stage, which was to smack it hard with a spanner. Only this time, it started to go. Not only did it start to go, but it didn't stop.

He shouted with delight, danced a jig, called for all His Hosts to come see, threw open the doors of shack, and lo! Hosannas of praise went up and the resonated throughout the Heavens. And they proclaimed it the Cosmos and it was good.
...or maybe...

Problem was, of course, He had not the slightest idea why it worked, or for that matter why it started to go in the first place. As such, the Almighty was just a little afraid of it, rather the way Frankenstein was not entirely comfortable with his monster.

He allowed Himself the conceit that somehow, via His chimpanzee bash with the spanner, He had provided a Divine Spark but that made the darn thing go, but there was always a small quantity of doubt in the back of His mind about the thing. And so He was always a bit careful around it, both because it was rickety cobbled together patchwork kind of a thing, but also because it seemed to possess a life of its own, and do things He didn't expect. (Worrisome when you consider He was omniscient).

He had had the presence of mind to installed a viewing tube on the thing, so that He could peer inside to view the workings. This was almost invariably a source of horror and delight to Him, and the complications and permutations and combinations of all the little whizzing parts were of endless fascination. He would wax poetically for hours over dinner, and well into the night, about what He saw in the Cosmos.

And then one day Lucifer asked if she could look into the wonder of the Cosmos. The Almighty  wasn't sure that was such a good idea, and said as much. She pleaded and cajoled with such charm and grace that finally He relented. And so, she stepped up to the Cosmos, fixed her lovely eye upon the viewing tube, and exclaimed with delight.

And that's when the machinery made a snatch at her.

In a twinkling, she was gone, whirled in and swept up into the innards of the Cosmos. The Almighty cried in horror and dismay, tried to find the Off switch, but there was none. Quickly, He searched the innards through the view tube for signs of her. Indications were she whole and intact, but strangely made nonlocal throughout the interior of the Cosmos and, so it would seem, permanently entangled within.

Try as He could, He could not extract her from the Cosmos. (Equally worrisome as He was omnipotent).

He closed up the shed, locked the latch, and never went back there again.

Tuesday, September 22, 2015

"Get out of my trailer" revisited

In the essay "Get out of my trailer", I imagined a human-cell-sized trailer occupied by a bacterial denizen and assumed that was about right. Turns out my arithmetic was a little bit off. Your average eukaryotic cell is about 15,000 times the volume of your average bacterium.

courtesy http://www.tentrillioncellhuman.com

So, let's say we scale up a bacteria to the size of a human being. Let's make him a six-foot, two hundred pound specimen, which is pretty close to me. My volume, as a cylinder of 72" height with ellipsoidal cross section, is about 3.17 cubic feet. Times 15,000 is 47,550 cubic feet. Let's make a two story building, that's a footprint of 2,377 square feet, which is about your contemporary average house size. (Average US houses in 1973  first census data available - were 1,660 square feet.)

So, we've moved up in the world from a trailer to a well-to-do suburban ranch house.

Get out of my starter castle you bacterial bitch.

And take your dirty Pigpen menagerie cloud with you.

Monday, September 21, 2015

The Vital Question: A Book Report

Nick Lane's The Vital Question: Energy, Evolution, and the Origins of Complex Life is not a book. It is an argument. It is an argument the way Charles Darwin's Origin of the Species is an argument. Nick Lane warns us in his forward, and some may not be ready to slog through this book.

Not that the book is that much of a slog, it's actually fairly well written and engaging, and he managed to mostly convince me with his arguments. He does keep the energy calculations to a minimum, but he is going to beat you about the head and shoulders with both data and supposition. So be forewarned.

Nick Bostrom, the Doomsday philosopher, will be pleased with this book. Bostrom really, really hopes that extraterrestrial intelligence (and by backwards inference, extraterrestrial life) is not found in the Universe. More locally, Bostrom hopes that absolutely no life is found on Mars, or Ganymede, or Europa, or Enceladas, or anywhere else in the Solar System. And never was.

If life is not found, then it is probable that the Great Filter which apparently exists to wipe out Life, is in our past. In other words, given the Fermi Paradox, that the universe seems set up to produce our kind of life, and that once it gets going our kind of life probably is set up to produce intelligent life, then we should be up to our armpits in aliens. We are not. "Where are they?" asked Fermi.

"Dead!" says Bostrom, "or even better still, Never Made It As Far As Us!"

So, Nick Lane makes a good case for No Complex Life. And by No Complex Life, he really means, no multicellular life, which in turn means no eukaryotic life, but maybe, probably, our kind Life elsewhere in the universe. Just not complex life.

Lots and lots of planets - once you eliminate the promising but barren earth like extrasolar candidates of which there are probably a shitload - probably have bacteria on them, and that's it. Bacteria, and archaea, forever and ever, amen.

(My own guess, and since we have a sample space of one to go from, is that there are perhaps only 1 out of 1027 worlds like Earth within the particle horizon of the Universe, meaning there is exactly one Earthlike planet that we can observe. That might placate Bostrom, but I doubt it. I know it bums out scifi fans hoping for aliens, but, hey, kids gotta grow up sometime).



Lane has done a very good job of convincing me that Earth life  - cellular life - got it's start in alkaline hydrothermal vents at the bottom of oceans. I used to think life got its start in black smokers, but that is a bit too extreme of an environment.



But alkaline hydrothermal vents, with just the right chemistries, with a similarity between and high Ph cell interior and low Ph sea water, along with iron/sulfur catalysts that are at the heart of practically every nanomechanical respiration mechanism that cells possess, just looks too right not to be true.

All that needs to be done is to set up a working experiment that demonstrates it, rather like Miller's and Urey's lightning-in-a-bottle that created amino acids. (Now,  pretty much a curiosity as evidence suggests early Earth's atmosphere looked nothing like the Miller/Urey experimental mix.

So, consider. Life did not appear in some warm pond. There was no primordial soup. Early Earth (and  early Venus, and early Mars) had an atmosphere of water vapor, CO2, and nitrogen, but very dense. All those artist's conceptions of early Mars' blue oceans are fantasy. Instead, picture what Venus looks like now, blanketed in murk, and that is the early Earth.

Consider: The faint young sun paradox. The sun was 30% as bright as it is now 4 billion years ago. And yet all rock evidence says Earth had water on it. Not a hellish lava Earth, and not a frozen solid Earth, as we would expect. Same with Venus. Same with Mars. But Venus and Mars never developed life. Why not? My guess is, no magnetic field. The early sun was hissing, spitting kitty cat of radiation and solar flares. Without a magnetic field to protect them, the sun stripped Venus and Mars of their atmospheric hydrogen, and they were doomed from the get-go. The sun was also pumping out huge volumes of UV radiation, not to mention all the planets getting pummeled with the leftovers of planetary formation. The only safe place to be is at the bottom of the ocean.

So, that's my argument. Life - as bacteria and archaea - got started down there, and it got started very, very quickly. So, given the cosmic abundances of chemicals that make up our kind of life, given the favorable thermodynamic properties of molecular formation that make our kind of life probable, one would expect a Universe full of (microbial) bugs.

Okay, fair enough. What about complex life? Eukarya? That is the scandal. As Lane argues, it probably happened only once, and it involved an archaean host and a bacterial enosymbiont. The bacterial component turned into what we call mitochondria, and the archean host swelled up into the giant chimeric monster of a cell we call eurkaryotes.

Kudos to Lin Margulis to pushing the argument for this insight of cells merging. But! The evidence suggests it only happened once. All the other stuff inside complex cells, the double-walled nucleus, the endoplasmic reticulum, the Golgi apparatus, the flexible cytoskeleton and flagella are NOT further symbiots absorbed. There is no evidence to suggest this.

Meaning, the origin of the eurkaryotes was a one-time freak accident. Oh, perhaps that's a bit of hyperbole, but not much. Meaning, probably all those buggy bacterial mat planets out there in the Cosmos, stay bacterial mat planets out in the Cosmos. Four billion years on, and they've made zero effort to improve themselves.

As Lane suggests, nothing is more conservative than a bacteria. The weird, monstrous, chimerical patchwork Frankenstein's monster which is us may just be a one-in-a-Cosmos shot.

All the more reason to be nice to other.

Sunday, September 20, 2015

Expo Chicago 2015

I went to Expo Chicago Saturday. There wasn't as much to take pictures of as in previous years. There were an inordinate amount of tall, stunning, blonde women, this year. Sorry, no pictures. Since I am neither rich nor famous, I was ignored, along with 99.999% of all the other males there.

Gallery Thomas Schulte of Berlin had some nice work by Allan McCullom. these very nice hand-turned objects were done in ash wood, A continuation of his Shapes Project. I was drawn to them both because of the wood and because they rather have a similarity to some of the shapes I play with, basically metazoan body plans. These shelves here go for a cool $108,000. The whole wall of twelve shelves can be had for $324,000. Allan had these turned on a lathe by craftsmen in Germany.

Cuban art was once again present with Cernuda Art gallery. Here is a painting by Manuel Mendive that I liked. I guess he's going for the whole alternate dimensional mechanical elves experience from the Santeria perspective.



James Turrell had not his normal stuff at Pace Galleries.



Bullethead, 1990
And welcome back, Donald Lipski! He has not exhibited for awhile. He has been doing mostly public commissions. I last saw his work at the Chicago Cultural Center in 2001. He had a piece at Hill Gallery of Birmingham, MI for an upcoming exhibition.


Saw a very fun kinetic piece by Carlos Costa at LOCAL Arte Contemporáneo (Chile).


Other than that, saw some art, some good, some hideous. I engaged in painful conservation with curators and gallery owners who would have much rather been talking to rich and famous people. Got mistaken for a gay guy and was hit on. Walked around way too much, and suffered for it later. Ended up in going to bed at 9:30 in the pm. Next up SOFA Chicago in November. Still not sure if I'll go to that.

Friday, September 18, 2015

No Shame In Fail

I was going to talk about food, but what with all the bleak news about how us ape-shaped bugs doing our best to make this planet uninhabitable for ape-shaped bugs, it's just too damn depressing.

So, using my best optimax formulae for deck chair rearrangement, which involves a certain amount of denial, I keep plugging away making art and submitting it. Here's the latest, and it's getting submitted to the Corning New Glass Review, which I never get in:

Machinerette Polyptych #1

This won't get in either, but, hey, it's not for lack of trying. This creation and submission would be considered in today's terminology a FAIL. It's a pity that this term, which pretty much applies to everyone and all circumstances, has entered into the snarky descent of the treadmill of pejoration.

There's nothing wrong with fail. In fact, I often tell my students "No shame in fail".

Case in point. Last night I used up my personal studio time to tutor a kid in the Design II class. Design II moves the students from two-dimensional works to three-dimensional, in preparation for the Sculpture. The sculpture professor teaches the class. He has basically had enough of this kid, and so he was handed off to me.

Look, I understand the sculpture professors dismissal of the kid. He's got his favorites, whom I call little poodles, and for whom art is effortless, or nearly so. They are easy to teach and they always follow the rules. He has little patience for the strugglies and problem children.

I get the strugglies. I get the broken toys. I get the problem children. I have no problem with that. The art they make is often awkward, clumsy, misshapen, deformed, disfigured.

Fantastic.

Always always far more interesting than the perfectly crafted and perfectly bland art that the poodles make. The rejected kids have a had time following the rules, often because the rules are incomprehensible to them.

So, this kid last night, obviously is within the autistic spectrum and also is tourettic with a profound verbal tic. But he's earnest, hard-working, wants desperately to get it, and is willing to put in whatever time and effort is necessary to get it.

Well, shit, I really had not choice but to see what I could do to help him.

He had been in the Design I class. I had been told by the instructor that he struggled in that class. A lot of the students in there were snickering at him, because he's weird and a retard. That kind of shit makes want to crack some skulls and get in some faces. But the nice story is, a girl in the class, a gorgeous stunning brilliant girl, stepped up to the plate, moved her stuff over to his table, provided him some support and companionship and silenced the snide little poodles.

Good on her!

This poor kid just didn't have the first idea of where to start. Two dimensional composition was hard for him. He can't understand basic spatial composition. He can't read a ruler. He doesn't understand what angles are. And the assignment is to create platonic solids from the cutouts on paper. So, anyway, I spent an hour and a half with him, tried about five different approaches to the problem. I had him ignore the instructions, gave him lots of paper, scissors, masking tape, the occasional timely advice, and said, make the solid as close as can, don't worry if it is exact, and have fun. Don't be afraid to make mistakes.

I had to some arithmetic for him, but I made him watch me do the work. I had to show how to work a protractor and compass, but he had to do it. Because we learn by doing. I wasn't going to strictly speaking doing the work for him.

"It's just pentagons and equilateral triangles. Just keep on cutting them and piecing them together", I said. I had him cut out each face and tape it together, and then I had him take it apart and lay it out as a contiguous piece on paper. And then draw it. Then cut that out and fold it, and tape it together. It was nice to see at the end of evening that he made kind of a fucked-up but recognizable icosidodecahedron.

"I think I'm starting to get it" he said.