Half a croissant, on a plate, with a sign in front of it saying '50c'
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Street tree arrangement

A concrete drill bit makes three to eleven 11 mm seed holes, and a biodegradeable polymer rain funnel with seeds at the base is placed in the 11 mm holes; photovolatic pathlight/laser prunes to optimize
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Thinking of ways to make installing street trees 8-16 times cheaper, so there can be 8-16 times more street trees at the same expense, because cities with 8-16 times more trees are awesome! Both residential neighborhood and public avenues benefit.

Previously a 1-2 foot diameter removal of concrete area on sidewalk occurred, comparatively mature single 3-7 year tree were planted; a decorative (()) metal doily was often placed at the base; and sometimes there was a stake.

New: Using a masonry drill bit, three to eleven 11mm holes are simply drilled in sidewalk concrete. A biodegradable funnel with a bunch of seeds at the Y-base and an angle cut tip (tent-stake like) is produced, and the person pops it into the drilled hole. Then they step on the funnel like it was a shovel, driving the funnel tip through the drilled concrete hole into the actual soil beneath the concrete.

Variations are tested like specific tree seed varieties, and funnel shapes, aesthetics, and water catchment areas are tested. Instead of the expensive metal doily ((O)), a spray painted concrete etchant (or lasers etching of the concrete surface) could say to everybody, "Tree here!". Another possibility is just like those retroreflective mega-stickers they make crosswalk (zebra crossing) stripes with, a concrete adhering sticker/doily. could be placed around the cluster of beseeded/funneled drill holes, but only if there's zero surface preparation. Surface prep is effort, and again I emphasize making more street trees alive, simultaneous to minimal human effort and expense.

The laser note: Not only could lasers fulfill the doily function by engraving the concrete with a ((O)) they could reduce the human labor of tending street trees by autoculling and pruning at each multidrilled hole location.

It's 2020 so I will be a little generous with the lasers. A dollar store photovoltaic pathlight is $1, and on alibaba a PV pathlight is just 32 cents. Modify such a pathlight to pulse a laser diode, like the way a CD player laser diode can pop a balloon, once every now and again to edit and prune the plurality of 3-11 trees per doily. On alibaba a 5 MP phone camera is 20-50 cents. What I think is a vibrating micromirror QR code scanner is about $5.60. (I'm imagining the scan element is 9 cents), add a 1-2 cent CPU; the result is a 69 cent local-area laser pruner.

For safety, rather than a balloon popping CD laser zap, a much weaker IR aim-at-stem wilting (to terminate) effect is used to cull and prune. Pruning of course sounds like a big laser zap is used, but if you sculpt the plurality of young trees once every 24 hours over years you get a new kind of (vehemently non-bonsai; actually tallness promoting) pruning. The camera, at 360 degree lens can also verify the absence of animals to reduce risk when pruning/culling. If you really want to fuss, alibaba has a 1 cent piezoelectric microphone, and you can not only avoid zapping animals he camera sees, you can prune when its been quiet.

So, a cheap, onsite make millions of them to go with millions of new street tree locations (and other gardens) solar pruner is possible. You can put the laser-pruner in another drill hole, and get enough life out of it so that, if the vision is one doily one tree, there is one tree remaining per doily out of the 3-11 that got seed drilled.

Let's make the street trees much more beautiful. The nurturing water-catchment funnels could be pretty and do not need symmetry; sculptural beauty encouraged! When planning, people could pick Trees, Doilies, and (temporary) biodegradeable nurturant funnels online. Many different artistic and sculptural shapes of funnels could be at any street. You may have noticed that sometimes on interior rock climbing walls, handholds have interesting rounded shapes and look quite pretty. That diversity of shapes and colors could be at every new tree planting location.

Also, you've seen a watering can spout; the funnel could actually just have contours and 1 mm holes on its upper surface and in contour valleys and look like a solid object. Genetic algorithms and neural networks with human response to beauty as guides make the world's most beautiful sculptures at the funnel shapes.

Popular online voting of which funnels could make sure that before the trees got large, people really liked the Sculpture (funnel) garden the doily visibly features on (say) 14 new-tree plantings around the block, even before the trees get big.

So does just drilling and planting three to eleven 1.1cm tree seed and funnel holes really grow viable street trees? I think so, because the funnels water catchement (and, as an option funnel base fertilizer depot) nurtures the trees. The doily lets people know they are supposed to enjoy it, and simultaneously walk around it, saving the young trees.

A few words about using lasers to prune and cull: Prior to 3 years This is a neural network genetic algorithm beautiful sculpture ensemble with some small plants. At 3 years you might have 1/3 survivors (about 4 trees).

To ensure you get just one big tree out of the thing you laser cull/prune to get 2 trees ages 3-5, to ensure 1 or more survivors, and at 7 years and up cull to 1 tree. As described I think automated nonhuman culling of the trees can be installed for less than 1$ (PV laser pruner).

Zero human care, ever, and the most beautiful trees and surroundings possible with the least installation expense.

Something libertarians can appreciate: There is a private sector incentive to Install a street tree arrangement every time a commercial building or dwelling changes hands; The real estate professional does it and talks up how the house is worth $1-40K more 15 or 30 years hence (when paid off/sold) from having beautiful trees in front of it, and that's either a point of value from working with Century 21 Real Estate, or the real estate professionals do it on their own because they earn much more than installation expense from the (slight) increment on their commission as the house/real estate is now projectively worth $1-40k more in the future.

So, at annotations, how would you make increasing the number of street trees even more affordable?

beanangel, Dec 20 2020

Freak max limit of 0.8 MPa, average about 0.425 MPa https://paperity.or...than-monocotyledons
Trees push back against the concreting. [wjt, Dec 26 2020]

Electrically conductive proteins, and the genes that already make them can be used to make RF antennas for wireless electricity consumption by humans https://www.google....0D6EQ4dUDCAw&uact=5
[beanangel, Dec 26 2020]

Informative article on bacteria that eat electricity (pretty nifty) https://earthsky.or...breathe-electricity
[beanangel, Dec 26 2020]

electrically conductive protein nanowires are one source of cytointerior (mitochondrial) antennas for humans and GI tract bacteria. https://www.biorxiv...1/856302v1.full.pdf
[beanangel, Dec 26 2020]

The title of this journal article suggests bacteria make metal objects at their interiors. https://onlinelibra...bs/10.1002/aoc.5810
"Over the past few years, the green nanotechnology has materialized as a momentous approach for the synthesis and fabrication of noble metal salt and metal nanoparticles. The green route synthesis exploits diverse reducing and stabilizing agents from bacterial resources for the successful synthesis of metal nanoparticles. This review mainly focuses on the biosynthesis of the most commonly studied metal and metal salt nanoparticles such as gold, silver, platinum, palladium, copper" [beanangel, Dec 26 2020]


       What happens when a sapling grows to be more than 11mm thick?
pertinax, Dec 20 2020

       [pertinax] I am glad you asked!   

       I think most trees, and certainly possible varieties, would be just fine with that. They would break the concrete around them. You've given me an opportunity to mention the stuff I left out of the idea. A jackhammer can rip apart concrete, but can a milder thing, a highly focused acoustic transducer, put something like a concentric net of weakened concrete interior to the concrete it is focused on?   

       Basically, just like focusing light, you focus sound, much weaker than a jackhammer, to make weak spots interior to the concrete. The plant grows, the concrete has what are basically interior scoring lines. The trunkside aesthetic is snap off pebbles, but good.   

       So a jackhammer is a heavy tool, what's the lightest tool that will do this to concrete? An engineer would look at the actual energies of the two systems. There is a thing called sonoluminescence where in the lab narrow beams of sound converge to compress an area so intensely it emits light. Plasma is generated. But I think the beams that cheaply prepare a tree doily are not so terribly extreme. The engineer might say, if you've got good speakers, and good computers, you might be able to cofocalize all the way to sonoluminescence at minute areas, but lots less exactitude would work.   

       Then I say to the engineer, I'm thriftier than zapping concrete so so much it sonoluminesces. I just want the concrete to break in the ways I prefer. Optimally with pretty pebbles I get to shape. F=MA suggests I really only need to break/comminute/fracture something about 1 mm thick (or less) and say 2 mm long, and then do it over and over again (raster scan) like interior dotted lines until the concrete has invisible Tree release lines in it.   

       I'm hoping that amount of F=MA fits inside a battery powered electric drill, which in this case I'm not using for drilling, but for something like "ultrasound wanding" the concrete surface. I really prefer to skip the ultrasound gel, but if I have to, it's ok as part of the tree planting process.
beanangel, Dec 20 2020

       It would be easier to start by not putting the concrete there.
pocmloc, Dec 20 2020

       I am intrigued at the concept of a "concrete drill bit". A radical departure from steel.
whatrock, Dec 20 2020

       What I'm really wondering is if keeping tradespeople busy is early adoption and justification of superbatteries. I believe I have read about versions of lithium batteries with things like 3-5 times the energy density, 3-5 times the run time. It seems like tradespeople get paid so much that if you were having someone drill holes in concrete with a battery powered hand drill, you want them to be able to do it lots of times between interruptions. That's be good, because it would economically drive the market for super batteries.   

       It's hard to guess how much a Norwegian carpenter working for the government earns. so, (drumroll) I looked it up, and, "A person working as a Carpenter in Norway typically earns around 234,000 NOK per year. Salaries range from 108,000 NOK (lowest) to 373,000 NOK (highest)." That is about a krone is .115 us $, so they earn the unbelievable $26K USD/year. So I must have got the numbers wrong. Otherwise Norwegians would be emigrating to the US to plant trees with drill bits. Every job with wages in Seattle Washington pays more than being a Norwegian carpenter.   

       Well, there went my thesis: Tradepeople cost a lot, so that drives superbattery economics. Everything I've heard, besides those actual numbers, is that tradespeople cost a lot.
beanangel, Dec 21 2020

       They cost a lot because they have to buy houses .that they build themselves , in the same market as all those financial advisors , brokers and analysts under pinning society's general economic trajectory.
wjt, Dec 22 2020

       I'd read something about a wifi -ish field that was intended to be set up at a job site and that would keep the cordless tools in that area charged indefinitely. So long as the tools remained within the field, the house structure, the street area where trees were being planted with, er, drills, etc they'd never go flat. This might mitigate the need for superbatteries. Curious if such a field would also keep the tradespeople fully charged.
whatrock, Dec 22 2020

       [whatrock] you think it is silly but a person only uses about a 100 Watts. There's a lot to be said for having the reverse of electric eel tissue in our bodies that can pick up inductive power and make lipids, carbohydrates and proteins out of it.   

       At 7 cents a KW hour a day's caloric requirements would be only about 17 cents.   

       People would just set up solar (2020 75cent /Watt panels) and have food for the rest of their lives with an initial $75-150 investment. Their actual personal solar panel would be connected to the grid, if the liked, and they could just tapi in anywhere globally. I favor genetically engineering humans, keeping their beautiful form the same mass and and shape as the most beautiful people of 2020AD, to be able to directly absorb inductive electric energy sufficient to let them live and thrive metabolically.
beanangel, Dec 23 2020

       The real cost of street trees is much higher (and much more complex) than the cost of planting them. You have the planning and planting, and then cleaning the leaves, trimming, clearing fallen branches, the beneficial nature of having trees nearby, traffic and parking considerations, and property values. I'm sure there are a lot more.
Voice, Dec 23 2020

       //the reverse of electric eel tissue//   

       That's an interesting thought, but how is the electric eel process reversible?
pertinax, Dec 23 2020

       How many angles can there be on the head of one pin?   


       Damn empiricism.
pertinax, Dec 26 2020

       Making it so people can live off of induced electricity: Bacteria have been discovered that use electricity as an energy source. They found them by putting electrodes in hot spring water, and the bacteria colonized the electrodes, getting food that way.[link]   

       So at it's very simplest, fecal matter, GI tract bulk volume could be/host 8-16 ounces of bacteria with electricity eating characteristics. Residing at the GI tract, the bacteria would be genetically engineered to excrete/secrete something to the GI tract environment that the body can absorb such as lipids, or proteins.   

       Where does the body-mass building part of food come from if you live off of electricity?   

       There is a protein-thing in plants called oxygen evolving complex made up of 4 associating proteins that splits water into hydrogen and oxygen [link]. Engineering the electric bacteria to make OEC causes them to have lots of Oxygen and hydrogen to make lipids and sugars/carbohydrates out of. The carbon comes from two sources, the persons bloodstream as carbon dioxide, HCO3-, and ...stuff they put in their mouth.   

       People breathe out Co2 and water. Drinking water is easy. Coming up with a carbon source goes with either recycling what you've already got or eating something. almost anything will do it (If it's an organic chemical). The GI tract electric bacteria could make the enzyme cellulase to digest cellulose, amylase for starch, and lipase for fats.   

       kludgey but if you want to do the electricity metabolism in the body tissue itself you could put the cellulase, amylase, and lipase in the cells of the GI tract (intestines). (people already make amylayse and lipase, but having it right next to the electric tissue chemistry increases chemical concentrations perhaps orders of magnitude.   

       It's also an opportunity to find the most beneficial food/GI tract absorbable for the electric bacteria to make, and then genetically engineer the bacteria to make that. Proteins that contain all the essential amino acids come to mind, and making some lipids, like omega-3 fatty acids.   

       How do the new nutritive electric bacteria in the GI tract receive electricity without an electrode? Induction, which for these purposes is kind of like: Radiowaves, when they strike a conductor, like a metal, induce an electric charge e- that then tries to flow to a ground. So, we add antennas to the already published electrical bacteria. At least three kinds of physiological antennas are published, although not as antennas.   

       Bacteria cause the production of metal nanocrystals [link]. Improving that so there is more of it, and the preferred shape for purposeful induction is one approach. There is also the recent discovery of conductive protein filaments at bacteria[link]., and as proteins, lego-ing these up (being less glib, duplicating them and concatenating them) it is pretty easy to make micrometer and nanometer shapes of various lengths to pick up electricity. So, outfitted with antennas the GI tract bacteria from the probiotic absorb the wireless charging bacteria and make and excrete the nutrients they are genetically engineered to make.   

       What if you are a genetic engineering enthusiast and you want to make this directly part of the human genome? Then genetically engineering the cells of the intestinal membranes themselves to make food and essential amino acids is the way to go. You would want the actual RF antennas to be on the inside of the mitochondria and so you could add them to either the mitochondrial genome, or the mitochondria genes at the nucleus.
beanangel, Dec 26 2020

       Good effort, but could you unplug it and drag it across to a different thread?
pertinax, Dec 27 2020

       [pertinax]...and I was looking forward to explaining the third way tissue and proteins could turn inductive electricity into food.   

       [Voice] has a good point about maintaining street trees really being an opportunity to make street trees more affordable and perhaps therefore more frequently grown.   

       At the extreme, You can use the same lasers they use to engrave pop bottles to make submillimeter sawdust by drawing lines and dots on branches that have downed or need pruning. Really, so during 2019 a workman would have just stood at three sides of a tree a workman would have aimed their service vehice powered laser at the tree from three sides and ignored the sawdust.   

       During 2028 a drone could do the same thing. The truck is now an autonomous vehicle and drives up near the tree automatically at 4:30 am when no one is around. The drone uses a wire to the truck to power the laser it is using to trim the tree. The drone does a more beautiful job.   

       The drone may or may not do something about the sawdust, with one possibility being lasering it away further, using a cold comminuting laser like a dental laser not a thermal rise laser.
beanangel, Dec 27 2020

       Please do explain that third way, [bean]; I was just thinking that we were getting a long way from the idea about tree- planting, and that electrical nourishment of humans would be a half- baked idea in its own right.
pertinax, Dec 27 2020

       Angles on the head of a pin is secular, yay secular!   

       so anyway there is a thing called a spline, and if you rotate it 360 you get a continuous 3D shape. If ) was a spline, and I rotated it 360 you might get a nice round sided 3D bead ( ). Just for fun a spline is kind of like the opposite of a lathe.   

       So, what if you make a spine to represent your pin. Say its a pincusion pin with a spherical head, a cylindrical shaft and a pointy tip <====( ) the spline you would make looks a little like /-----', or said in English: a tiny diagonal connected and distal to an offset x-axis line that has a U like hemisphere at the other distal end. Give it one full rotation and it looks like a pincushion pin.   

       So this brings up, some 3D things have simple splines and some don't. If I were good at visualizing things, and this is why I'm bringing it up here, because most halfbakers might be good at visualizing things:   

       What thing, if you rotate it makes a Klein Bottle ? What is the axis of rotation? Do you need to do something almost as simple as a circular rotation but is intriguingly different like rotating a lissajous figure or a pringles potato chip?   

       Do you have to do something discontinuous like in a three frame process change the z,y,and x axes out with each other, keeping your pen on the paper the whole time, and then continue drawing a curve?   

       If you covered the surface of a klein bottle with mobius strips could you build one that way? sort of like: If you were going to paper mache an AT&T sphere stripe logo with stacked strips, could you just make a Klein bottle from mobius strips, adjacently placed, at a 360 degree rotation?   

       So it's got entertainment value either way, if the Klein bottle does have a novel axis of rotation, you could rotate some other thing the same way with a computer, and look at it, and see if it was groovy.   

       A person good at programming could use Matlab to graph like, hundreds of things with the klein bottle rotation and a person could look at them for fun.   

       There is a chance that if you rotated every spline at some sort of popular splines in CAD thing (I know functions are infinite, it's just their might be a great and beautiful splines library out there) at the rotation that generates a klein bottle, and have people upvote their favorites online you might find something people like the looks of even more than a klein bottle.
beanangel, Dec 27 2020


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