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For SpaceNut re three links in topic about Interplanetary Transport...
https://newmars.com/forums/viewtopic.ph … 05#p232005
Thanks for all three links! While the publication dates are on the older side, the content seems to me to hold up well.
As you would doubtless know from reading the articles, an original vision was to put the passenger compartment at the far end of a tether with a counter weight at the other end. kbd512's design would eliminate the counterweight and put matched personnel habitats at both ends. kbd512's design also solves the precession problem by counter rotating the batons.
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For SpaceNut re sound post:
https://newmars.com/forums/viewtopic.ph … 06#p232006
This is a fascinating idea! The output of a rocket engine should be like the output of a vacuum cleaner exhaust, completely free of a dominant frequency. My guess is that no rocket engine designer would want a specific frequency to dominate.
Hopefully GW Johnson will see an opportunity to follow up with observations or comments about this idea.
My guess is that a trombone player creates the sound that is amplified by the instrument, similar to a trumpet, but I don't actually know, so am hoping someone knowledgeable will comment.
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For SpaceNut ... the scan from 231001 to 232000 completed without interruption. I guess the Internet was glassy smooth last night. I'll report the results shortly.
Good run!
Only two potholes showed up for 1000 posts: 231390 and 231447
The series from 232000 is in progress.
For the record, the count of lines for this run is: 113,928
That total will vary depending upon the content added to the forum by members
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For SpaceNut re four (count'em) FOUR posts in one day !!!
I'm hoping this means the power is working in your property, and that you may have a place to set up the laptop!
Thanks (in particular) for the post about lubrication ... That is ** very ** much going to be an issue for the small ITV kbd512 and GW Johnson are discussing. I would expect roller bearings to be used, but using the right space rated grease sure does sound like a good idea!
If you are interested in pursuing this a bit further ... the bearings on the ITV need to last for four years in case the vessel is delayed at Mars. And they will be in service that entire four years, except for brief intervals when they may be stopped to allow personnel to move around or to restock supplies.
Are the ISS solar panels running on roller bearings? I would expect so but verification would be helpful.
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For SpaceNut ....
This forum has no category for ethics...
At the time the forum was created what I'm about to show you was not imaginable (by most people, for sure!)
I thought you might be interested to see the new temptations that recent graduates are facing...
This is from an article published by Yahoo in their Finance section. It is about a policy issued by Jamie Diamond at JPMorgan.
An email sent by Filippo Gori and John Simmons, co-heads of global banking at America’s largest bank, welcomed new grads starting this summer with a stern warning: “If you accept a position with another company before joining us or within your first 18 months, you will be provided notice and your employment with the firm will end.”
The reasoning was clear, to get on at the financial giant “your full attention and participation are essential.”
Continuing its no-nonsense outline to junior talent, the memo adds that training sessions, meetings and obligations are mandatory—if they are missed then, again, the individual may be let go.
The email telling recent graduates they would be let go if they secured a further job was only sent to new employees in the U.S., Fortune understands, largely because the issue of talent accepting future roles is more of a problem stateside than in other geographies.
https://www.yahoo.com/finance/news/jpmo … 20851.html
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