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Japan to go fishing ... for space debris



 
 
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  #1  
Old February 9th 11, 04:53 PM posted to sci.space.policy
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Default Japan to go fishing ... for space debris

"Japan's space agency is reportedly
teaming up with a fishing net
manufacturer to catch and remove
debris from Earth orbit, where it poses
a threat to spacecraft, astronauts and
satellites.

The space fishing net would span
several kilometers and be made of thin
metal wires. As it scoops up space
debris, it will be charged with electricity,
allowing Earth's magnetic field to reel in
the haul and eventually burn it up in
Earth's atmosphere, The Telegraph
reports."

See:

http://cosmiclog.msnbc.msn.com/_news...bris?GT1=43001
  #3  
Old February 9th 11, 07:49 PM posted to sci.space.policy
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Default Japan to go fishing ... for space debris

On Feb 9, 11:53*am, wrote:
"Japan's space agency is reportedly
teaming up with a fishing net
manufacturer to catch and remove
debris from Earth orbit, where it poses
a threat to spacecraft, astronauts and
satellites.

The space fishing net would span
several kilometers and be made of thin
metal wires. As it scoops up space
debris, it will be charged with electricity,
allowing Earth's magnetic field to reel in
the haul and eventually burn it up in
Earth's atmosphere, The Telegraph
reports."

See:

http://cosmiclog.msnbc.msn.com/_news...-japan-to-go-f...


wouldnt it be interesting to retrieve some of that space junk for
analysis? or just public view
  #4  
Old February 9th 11, 08:09 PM posted to sci.space.policy
Paul Madarasz[_2_]
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Posts: 61
Default Japan to go fishing ... for space debris

On Wed, 9 Feb 2011 18:42:12 +0000 (UTC), Rick Jones
wrote, perhaps among other things:

wrote:

"Japan's space agency is reportedly teaming up with a fishing net
manufacturer to catch and remove debris from Earth orbit, where it
poses a threat to spacecraft, astronauts and satellites.


The space fishing net would span several kilometers and be made of
thin metal wires. As it scoops up space debris, it will be charged
with electricity, allowing Earth's magnetic field to reel in the
haul and eventually burn it up in Earth's atmosphere, The Telegraph
reports."


Hah - that is really just a cover for Japan's astrobiology group's
discovery/creation of giant space spiders from Mars using fosilized
DNA found in meteor fragments... with whom they are in cahoots for
world domination It's not for nothing that the "James Bond" volcano
has been reported active recently...

rick jones


David Bowie, an astrobiologist ahead of his time.
  #5  
Old February 9th 11, 10:18 PM posted to sci.space.policy
Pat Flannery
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Posts: 18,465
Default Japan to go fishing ... for space debris

On 2/9/2011 10:42 AM, Rick Jones wrote:

Hah - that is really just a cover for Japan's astrobiology group's
discovery/creation of giant space spiders from Mars using fosilized
DNA found in meteor fragments... with whom they are in cahoots for
world domination It's not for nothing that the "James Bond" volcano
has been reported active recently...


Godzilla has fought these creatures befo
http://godzilla.monstrous.com/galler...164&fullsize=1

Pat
  #6  
Old February 10th 11, 02:44 PM posted to sci.space.policy
Val Kraut
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Posts: 329
Default Japan to go fishing ... for space debris


Godzilla has fought these creatures befo


A quick calculation shows that the use of 4 shuttle SRBs would allow Mothra
to achieve LEO and eat the junk. All we need now is space suits for the
little girls, and an estimate of the reentry characteristics of giant
semi-metallic moth terds. (Given todays times, I wonder how many unsolicited
proposals this though will foster)


Val Kraut


  #7  
Old February 10th 11, 08:27 PM posted to sci.space.policy
Pat Flannery
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Posts: 18,465
Default Japan to go fishing ... for space debris

On 2/10/2011 6:44 AM, Val Kraut wrote:
Godzilla has fought these creatures befo


A quick calculation shows that the use of 4 shuttle SRBs would allow Mothra
to achieve LEO and eat the junk.


Hell, Gamera can get into Earth Orbit all on his own, although you would
think he would get dizzy spinning around while flying like that:
http://www.youtube.com/watch?v=j51XdsXGjFQ

All we need now is space suits for the
little girls,


I finally found out who the original ones were; they were a singing duet
named "The Peanuts": http://en.wikipedia.org/wiki/The_Peanuts
They've got an evil sister in the modern Mothra Rebirth films BTW; she
flies around on a little dragon, while the twins fly around on a little
moth named "Fairy".
In this clip, the little moth and dragon get into a fight, and
completely trash the inside of a house:
http://www.youtube.com/watch?v=FklDi...eature=related
This is going to take some explaining to the parents unless dorky lil'
Minilla shows up like the Cat In The Hat, and puts things aright before
the parents get home.
That doesn't happen in the movie, but it wouldn't have surprised me one
bit if it had. :-D

Pat


  #8  
Old February 11th 11, 11:04 PM posted to sci.space.policy
Dr J R Stockton[_100_]
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Posts: 7
Default Japan to go fishing ... for space debris

In sci.space.policy message 79964dc2-d4eb-47e1-84b4-c24bc6be53c4@n16g20
00prc.googlegroups.com, Wed, 9 Feb 2011 08:53:33,
posted:

"Japan's space agency is reportedly
teaming up with a fishing net
manufacturer to catch and remove
debris from Earth orbit, where it poses
a threat to spacecraft, astronauts and
satellites.

The space fishing net would span
several kilometers and be made of thin
metal wires. As it scoops up space
debris, it will be charged with electricity,
allowing Earth's magnetic field to reel in
the haul and eventually burn it up in
Earth's atmosphere, The Telegraph
reports."



If you use current Chrome to read the original paper, at
http://www.asahi.com/science/update/...101250056.html, you can
see that, while the first quoted paragraph is sufficiently accurate, the
second is not.

The proposal is not to catch the debris in a net, and indeed not to use
a net at all. It is to use a multicore tether, as made by a net-maker,
and attached to the debris by unspecified means, interacting with the
Earth's magnetic field to cause drag, and thereby to reduce the orbital
radius at a greater rate than natural drag alone.

The un-mentioned problem is that, although the debris re-enters sooner,
before re-entry it is in essence not a point object but a line object
with a much greater cross-section for colliding with other orbiting
material wanted or unwanted.

--
(c) John Stockton, near London.
Web http://www.merlyn.demon.co.uk/ - FAQish topics, acronyms, and links.
 




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