s/satellite/asteroid/ --dave On 11/3/22 14:11, Dave Collier-Brown via Starlink wrote: > > I recommend sticking a long piece of conductor to the satellite, > rather than banging on it with spaceships (;-)) > > https://www.researchgate.net/profile/Z-H-Zhu/publication/251422339_Deorbiting_Dynamics_of_Electrodynamic_Tether/links/5cd4446b299bf14d95849bc3/Deorbiting-Dynamics-of-Electrodynamic-Tether.pdf > > > (From York, one of my local universities) > > As for the starship, it should treat asteroids like mines, and assume > someone is trying to "sink" them. > > --dave > > On 11/3/22 13:37, Bruce Perens via Starlink wrote: >> If you own a 50 ton spaceship, please do not intentionally hit any >> asteroids or other objects with it. What you get is smaller objects >> heading in different directions at different velocities, none of >> which are all that predictable, and in total more danger to objects >> in space than before and still significant danger to ground objects. >> What you want is to turn it harmless. This is done by gently >> attaching to it and then giving it a controlled push. >> >> I've been curious about what one could do over time just using the >> pressure of light from the ground, or enough light to >> gassify material to add delta V, however high power devices for this >> would also be effective weapons. >> >>     Thanks >> >>     Bruce >> >> On Thu, Nov 3, 2022 at 5:28 PM Dave Taht via Starlink >> wrote: >> >> So, what would happen if we hit one of these (3 new ones discovered >> yesterday) with 50tons of starship, at 15 klicks per second? [1] >> >> https://en.wikipedia.org/wiki/Atira_asteroid >> >> the three new ones, discovered and announced a day or three back: >> >> https://www.smithsonianmag.com/smart-news/three-near-earth-asteroids-were-hiding-in-the-suns-glare-180981055/ >> >> (Atira class are rocks within earth orbit. They are very hard to see, >> probably overly baked (low on volatiles), and get bright sun all the >> time) >> >> [1] I'm very inspired by DART, but afraid to do the math for this >> tonnage and speed. (anyone? there's a LOT of zeroes... ) I have >> project ploughshare on my mind, except kinetic, and it's less >> deflection on my mind than reducing a rubble pile to rubble, >> identifying the good pieces, and bringing them back. >> >> >> >> -- >> This song goes out to all the folk that thought Stadia would work: >> https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz >> Dave Täht CEO, TekLibre, LLC >> _______________________________________________ >> Starlink mailing list >> Starlink@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/starlink >> >> >> >> -- >> Bruce Perens K6BP >> >> _______________________________________________ >> Starlink mailing list >> Starlink@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/starlink > -- > David Collier-Brown, | Always do right. This will gratify > System Programmer and Author | some people and astonish the rest > dave.collier-brown@indexexchange.com | -- Mark Twain > > */CONFIDENTIALITY NOTICE AND DISCLAIMER/*/ : This telecommunication, > including any and all attachments, contains confidential information > intended only for the person(s) to whom it is addressed. Any > dissemination, distribution, copying or disclosure is strictly > prohibited and is not a waiver of confidentiality. If you have > received this telecommunication in error, please notify the sender > immediately by return electronic mail and delete the message from your > inbox and deleted items folders. This telecommunication does not > constitute an express or implied agreement to conduct transactions by > electronic means, nor does it constitute a contract offer, a contract > amendment or an acceptance of a contract offer. Contract terms > contained in this telecommunication are subject to legal review and > the completion of formal documentation and are not binding until same > is confirmed in writing and has been signed by an authorized signatory./ > > > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest dave.collier-brown@indexexchange.com | -- Mark Twain