by tahanson43206 » Mon Aug 10, 2020 8:03 pm
20200808 This is a stub for a weekly update
It also serves to keep this thread in the Active list
tahanson43206 is currently participating in newmars.com forum
tahanson43206 joined the Living Universe Foundation (LUF) subReddit on Reddit.com
Living Universe Foundation
subscriber/livinguniverse 12 subscribers, a community for 1+ months
This is the subreddit of the Living Universe Foundation. Our dream is to see humanity take life to the stars.
In NewMars.com (forum) there is a post which is following Mars around the Sun. New Years on Mars occurred on Earth day 2019/03/24. Mars has passed longitude 180 degrees in its stately progression. The calendar is now on Sol 383 or later.
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In recent days, tahanson43206 has been working on building a virtual business incubator in the newmars.com forum.
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If you are interested, the concept is for a participant to take responsibility for development of a virtual plot on Mars, one kilometer square on the surface, in a community called Sagan City (2018).
Participants will interact with each other to specialize in one or more of the knowledge areas which will be needed to sustain civilized life on Mars.
To see a proposed calendar for Mars: <<== Update 2020/08/03 Mars is expected to pass through perihelion in a few hours
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In addition, tahanson43206 is participating in a membership outreach campaign at NewMars forum. In an effort to build up a virtual business community focused upon Mars, messages are being send to newly registered members, inviting them to participate in the Hacienda topic.
A new branch of the My Hacienda topic is open, in addition to the previously reported Devon Island branch. This new branch considers an implementation of Sagan City (2018) on an island in Norway. This island is inhabited, and international arctic research stations are already encouraged by the government.
In the past week, a variety of topics have been under discussion as usual.
Work is completed on design of a piece of hardware to sit between loops of Kevlar Thread, in a chain concept for a tether at Mars. Models of the Cushion Guide are shown in various stages of development at Shapeways.com. Two full version of the model was 3D printed by a contractor in Cleveland. The full version of the Cushion Guide has been rebuilt in Fusion 360, and (apparently successfully) uploaded to Shapeways. An earlier model (719) has passed through the printing process at Shapeways and is in transit to a review station. A revised model (727) will be submitted for printing soon.
Work is progressing on a program to calculate the number of links that would be required to build a chain of Kevlar thread from a point above the surface of Mars to the orbit of Phobos. The program will compute the number of threads needed to hold each Cushion Guide in the chain. Output will include the number of Cushion Guides required, and the number of kilometers of Kevlar thread needed to complete the chain. Each #92 Kevlar thread can hold 13 kilograms.
Several members have been thinking about the Starship vehicles in design by SpaceX might be used to accomplish various space exploration and settlement missions.
Meanwhile, a member who goes by RobertDyck has undertaken conceptualization of a large scale passenger ship that could travel to Mars.
The forum was joined recently by a new member who appears to have the ability to deliver hard numbers to the various discussions. The ability to work with hard numbers is rare in the forum membership, and it is most welcome.
Discussion took off in a new/old direction in the past week ... the new member suggested trying to build a cable based transportation system on Mars, and several older members contributed to the discussion. The major new element added to the discussion (by the new member (SeaDragon) was the idea of making pylons out of frozen Mars regolith.
Such pylons would need to be protected from daytime heating near the equator during Mars summer, but the mean temperature at the surface of Mars is -81 degrees Fahrenheit (per mars.nasa.gov), so the pylons should be able to hold form reasonable well over the course of a Marian year.
Update 2020/08/07 A NewMars member going by kbd512 came up with an idea/suggestion for a deep space vehicle that I have not seen before, and that I think is worth exploring a bit.
The idea is to build rotating habitat disks that rotate in opposite directions, like the propellers of helicopters designed with counter rotating blade disks.
The unique aspect of kbd512's concept is to use the Startrek Enterprise saucer design for the rotating habitats.
Engineering challenges to design such a passenger carrying vessel would be significant. Navigation of such a vessel would be challenging as well, although counter rotation of the habitat sections would presumably help, the forces at work at the hubs would be severe if thrust is not applied carefully.
*** Update 2020/08/09 ... discussion of the Startrek(like) vision of kbd512 has stimulated discussion leading to an interesting concept not published elsewhere, to the best of my knowledge.
A member posted a link to a Physics instructional video about gyroscopes. This lead to the realization that a very efficient design for a spinning habitat with a non-spinning propulsion/navigation unit is possible.
Whereas a gyroscope used for position sensing in an aircraft has three circular housings that are at 90 degrees with respect to each other, a space vehicle would need only one ring, and only half of a ring at that.
A 3D Printer model showing what this spacecraft design might look like has been published on NewMars forum.
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May every member of The Knowledge forum grow financially, intellectually, socially and beyond.