20160920 Magellan Space City Designer Planet Simulation

Re: 20160920 Magellan Space City Designer Planet Simulation

Postby tahanson43206 » Mon Mar 27, 2017 5:16 pm

20170327 Reference #1 Page lx

On this day in 1520, the Magellan Expedition continued sailing South along the East Coast of Brazil, heading toward Puerto San Julian

Begin Quotation from Page lx:
31 March 1520: The fleet enters Puerto San Julian (in 49 degrees 30 minutes South)
End Quotation.

The next landfall is reported as 49 degrees 30 minutes South, on March 31st. Google Earth reports this location as Puerto San Julian at S49 degrees 18 minutes.

The Expedition record of 49 degrees 30 minutes south does not correspond to the GPS coordinates reported today. The difference may be accounted for by the limitations of the mechanical navigation instruments of the day.

According to records of the voyage, the state of mind of some members of the five ship's crews was unsettled during this period.

***
Since the purpose of this thread is to consider alternative futures for humans expanding away from Earth, and since the technology of atom assemblers has been introduced previously as a logical and attractive way for a community away from Earth to maintain a high technology while at the same time distributing the means of production equitably across the population, I would like to focus today on the topic of fabrication of iron and iron alloy tools.

While it seems possible that it will be possible to form strong chemical bonds during the atom assembly process, it may turn out to be more efficient to assemble the atoms for a structure, such as a knife blade or a hammer head, and then use traditional procedures of heating and cooling (and perhaps compression operations) to improve the strength of the structures. I would expect it would take a month to assemble either of these structures.

(th)
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Re: 20160920 Magellan Space City Designer Planet Simulation

Postby tahanson43206 » Mon Apr 03, 2017 2:08 pm

20170403 Reference #1 Page lx

On this day in 1520, the Magellan Expedition has reached Puerto San Julian, and a mutiny has just occurred.

Begin Quotation from Page lx:
31 March 1520: The fleet enters Puerto San Julian (in 49 degrees 30 minutes South), where it remains for five months, until 24 August. Here the encounters with the Patagonia giants and the mutiny take place (107-88)
End Quotation.

From the account of Antonio Pigafetta we have (on page 12) (Item [25])
Begin Quotation:
Leaving there, we finally reached forty-nine and on-half degrees toward the Antarctic Pole [107].77 We passed two months there without seeing any people [109].
End Quotation.

Mr. Pigafetta's account (apparently) does not include selected unpleasant events, which are recorded elsewhere.

From the summary on Page lx:
Begin Quotation:
1 April 1520: During the night between 1-2 April, Juan de Cartagena attempts to kill the master of the San Antonio, Juan de Elorriaga, and putin chains Alvara de Mesquita. Gaspar de Quesada and Juan Sebastian del Cano take possession of the Concepcion and Luis de Mendoza of the Victoria. Magellan suppresses the mutiny. A court martial is held and forty men are found guilty and condemned to death, including Gaspar de Quesada.
End Quotation.

From the complement of crew of 239, as recorded 5 May 1519, Magellan was now down to under 200, if all the planned executions were carried out.
***
Since the purpose of this thread is to consider alternative futures for humans expanding away from Earth, and since the technology of atom assemblers has been introduced previously as a logical and attractive way for a community away from Earth to maintain a high technology while at the same time distributing the means of production equitably across the population, I would like to focus today on the topic of fabrication of a complex object.

Somewhat arbitrarily, today's object is a gasoline powered weedeater.

http://www.searspartsdirect.com/model-n ... 3820.html8

The link above shows a machine sold by Sears: Model #FL20C TYPE 2 WEEDEATER Line Trimmers/Weedwackers, Gas

The web site presentation includes diagrams of the power head and the drive shaft assemblies.

There are a significant number of separate parts. From the stand point of an economy based upon atom assemblers which operate at the rate of biological structures such as trees, the manufacture of such a machine might most reasonably be approached in emulation of the distributed manufacturing system that was used to create this machine in the late 20th century.

A project leader would accept a commission to supply one of these devices, and that person would collect all of the digital files needed to fabricate all the components.

The project leader would then solicit participants in the project, to make components. In order for the manufacture to complete in the optimum amount of time, the project leader would employ software to optimize the process to accomplish the task in the minimum amount of time. It seems likely that manufacture of the cylinder (Item #6) would consume the most time, so that prepare a Gantt Chart for the project, with the cylinder as the long leg. The remaining components would be collected into sets whose total length did not exceed the cylinder line. The objective of this phase would be to achieve a plan that employed the minimum number of atom assemblers. A complication is the size of the atom assemblers which a particular individual might own, because the size would determine the parts that could be allocated.

In the end, the project leader would have a set of specifications ready to contract out to participants who respond to the Request for Participation message.

I am going to make a guess that the cylinder would take a year to assemble, but the crankcase assembly (Item #12) would be a close second.

Thus, a customer for one of these machines would expect to wait a year, and I am guessing that payment would be expected to accumulate in an escrow account during the assembly process, since all of the participants will have given up earning opportunities to take on this commission. In other words, the buyer would be expected to pay for the machine time expended in manufacture of the machine, whether or not the process runs to completion. A secondary market for insurance can be expected to develop to cover potential losses that might occur.

In an economy such as this, the concept of "mass manufacture" might still exist, but a group that decides to invest in equipment to manufacture large numbers of items would (no doubt) think long and hard about the potential sales opportunity available to them.

*** As a follow up, a neighbor provided an old Ryobi 13 cc weedeater, model 700r. I am planning to disassemble it, with a view to expanding upon the discussion of the Sears weed eater, which was based upon the web site image.

(th)
Last edited by tahanson43206 on Mon Apr 17, 2017 2:18 pm, edited 1 time in total.
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Re: 20160920 Magellan Space City Designer Planet Simulation

Postby tahanson43206 » Mon Apr 10, 2017 3:10 pm

Re: 20160920 Magellan Space City Designer Planet Simulation
20170410 Reference #1 Page lx

On this day in 1520, the Magellan Expedition has begun to settle into a wait for favorable weather at Puerto San Julian

Begin Quotation from Page lx:
31 March 1520: The fleet enters Puerto San Julian (in 49 degrees 30 minutes South), where it remains for five months, until 24 August. Here the encounters with the Patagonia giants and the mutiny take place (107-88)
End Quotation.

From the account of Antonio Pigafetta we have (on page 12) (Item [25])
Begin Quotation:
One day we suddenly saw a naked man of giant stature on the shore of the port, dancing, singing, and throwing dust on his head[110]
End Quotation.
***

Since the purpose of this thread is to consider alternative futures for humans expanding away from Earth, and since the technology of atom assemblers has been introduced previously as a logical and attractive way for a community away from Earth to maintain a high technology while at the same time distributing the means of production equitably across the population, I would like to focus today on the topic of fabrication of a complex object.

A neighbor provided an old Ryobi 31 cc weedeater, model 700r. I am planning to disassemble it, with a view to expanding upon the discussion of the Sears weed eater, which was based upon the web site image.

In approaching this object, I find myself more than a little daunted by the challenge facing a hypothetical atom assembler project manager in some future time and place.

The machine can be divided into two major sections. The power head is the more complex of the two components. The tool shaft is the larger of the two.

The tool shaft includes a metal tube through which (I am guessing) a wire cable presumably transfers power to the plastic whip mechanism at the foot of the tool.

The metal tube might be fabricated with a curve similar to the one to be seen in the Ryobi example, but it seems more likely that the tube could be fabricated as a long straight piece, and then bent into the final form. It would be my guess that a great number of similar decisions will be required as the visualization of recreation of the Ryobi whip using atom assemblers proceeds.

2017/04/11 Addendum .... since the Ryobi weedeater is a gasoline powered machine (in this case a 2-cycle design), it needs both gasoline and oil for lubrication.

In an economy based upon atom assemblers, production of long chains of hydrocarbons might be achieved by adding hydrogen atoms and carbon atoms to chains assembled in tunnels. Input to the assembly tunnels would be streams of carbon and hydrogen atoms. In order for the production system to be practical, there would be a lot of these tunnels. Output would fall (if in a gravity field) into a collection container.

Machines like these could certainly be used today, on Earth.

(th)
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Re: 20160920 Magellan Space City Designer Planet Simulation

Postby tahanson43206 » Mon Apr 17, 2017 2:24 pm

Re: 20160920 Magellan Space City Designer Planet Simulation
20170417 Reference #1 Page lx

On this day in 1520, the Magellan Expedition continued a wait for favorable weather at Puerto San Julian.

Begin Quotation from Page lx:
31 March 1520: The fleet enters Puerto San Julian (in 49 degrees 30 minutes South), where it remains for five months, until 24 August. Here the encounters with the Patagonia giants and the mutiny take place (107-88)
End Quotation.

Because a mutiny occurred on April 1, and 40 men were condemned to death, I would have to assume the state of mind of the crew was unsettled during this period.

Because the Santiago was lost on the 3rd of May, I'm assuming it must have been dispatched to search for a passage to the Pacific Ocean around this time.

***
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Re: 20160920 Magellan Space City Designer Planet Simulation

Postby tahanson43206 » Tue Apr 25, 2017 12:08 am

20170424 Reference #1 Page lx

On this day in 1520, the Magellan Expedition continued a wait for favorable weather at Puerto San Julian.

Begin Quotation from Page lx:
31 March 1520: The fleet enters Puerto San Julian (in 49 degrees 30 minutes South), where it remains for five months, until 24 August. Here the encounters with the Patagonia giants and the mutiny take place (107-88)
End Quotation.

Because the Santiago was lost on the 3rd of May, I'm assuming it must have been dispatched to search for a passage to the Pacific Ocean around this time.

Antonio Pigafetta does not (apparently) leave a written record of the two months from arrival at the port where they waited out the Southern winter. His account resumes with an account of the appearance of a native:
Begin Quotation from entry [25] on Page 12:
We passed two months there without seeing any people [109]. One day we suddenly saw a naked man of giant stature on the shore of the port, dancing, singing, and throwing dust on his head [110].
End Quotation.

In entry [25] while the expedition was travelling South toward the winter port, Pagafetta reported:
Begin Quotation:
... we encountered two islands full of geese and seawolves [99]. 75 Truly, the great number of these geese cannot be told; in one hour we loaded the five ships [with them] [100].
End Quotation.

I wonder if the geese were loaded while still alive, which would insure their preservation.

It seems reasonable to suppose as well, that the crew would have supplemented their diet with fishing, but the only fisherman I am sure of is Pigafetta himself.

***
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