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X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Nov 2022 18:11:39 -0000 --------------js7aH0SqMVTEXnt3p0D2fyPD Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: quoted-printable I recommend sticking a long piece of conductor to the satellite, rather tha= n banging on it with spaceships (;-)) https://www.researchgate.net/profile/Z-H-Zhu/publication/251422339_Deorbiti= ng_Dynamics_of_Electrodynamic_Tether/links/5cd4446b299bf14d95849bc3/Deorbit= ing-Dynamics-of-Electrodynamic-Tether.pdf (From York, one of my local universities) As for the starship, it should treat asteroids like mines, and assume someo= ne 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 asteroid= s or other objects with it. What you get is smaller objects heading in diff= erent directions at different velocities, none of which are all that predic= table, and in total more danger to objects in space than before and still s= ignificant 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-h= iding-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-69813666656= 07352320-FXtz Dave T=C3=A4ht 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 a= ny and all attachments, contains confidential information intended only for= the person(s) to whom it is addressed. Any dissemination, distribution, co= pying or disclosure is strictly prohibited and is not a waiver of confident= iality. If you have received this telecommunication in error, please notify= the sender immediately by return electronic mail and delete the message fr= om your inbox and deleted items folders. This telecommunication does not co= nstitute an express or implied agreement to conduct transactions by electro= nic means, nor does it constitute a contract offer, a contract amendment or= an acceptance of a contract offer. Contract terms contained in this teleco= mmunication are subject to legal review and the completion of formal docume= ntation and are not binding until same is confirmed in writing and has been= signed by an authorized signatory. --------------js7aH0SqMVTEXnt3p0D2fyPD Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

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/2514223= 39_Deorbiting_Dynamics_of_Electrodynamic_Tether/links/5cd4446b299bf14d95849= bc3/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 so= meone 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 object= s heading in different directions at different velocities, none of which ar= e all that predictable, and in total more danger to objects in space than before and still significant danger t= o ground objects. What you want is to turn it harmless. This is done by gen= tly attaching to it and then giving it a controlled push.

I've been curious about what one could do over time just using the pre= ssure of light from the ground, or enough light to gassify materi= al to add delta V, however high power devices for this would also be effect= ive weapons.

    Thanks

    Bruce

On Thu, Nov 3, 2022 at 5:28 PM Dave T= aht via Starlink <starlink@lists.bufferb= loat.net> 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://w= ww.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 T=C3=A4ht CEO, TekLibre, LLC
_______________________________________________
Starlink mailing list
Starlink@lists.bufferbloa= t.net
https://lists.bufferbloat.net/listinfo/starlink


--
Bruce Perens K6BP

____________________________________=
___________
Starlink mailing list
Starlink@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/starlink

--=20
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 D= ISCLAIMER : T= his telecommunication, including any and all attachments, contains confiden= tial information intended only for the person(s) to whom it is addressed. Any dissemination, distribution, copying or discl= osure is strictly prohibited and is not a waiver of confidentiality. If you= have received this telecommunication in error, please notify the sender im= mediately by return electronic mail and delete the message from your inbox and deleted items folders. This tel= ecommunication does not constitute an express or implied agreement to condu= ct transactions by electronic means, nor does it constitute a contract offe= r, a contract amendment or an acceptance of a contract offer. Contract terms contained in this telecommunication ar= e subject to legal review and the completion of formal documentation and ar= e not binding until same is confirmed in writing and has been signed by an = authorized signatory.

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