That video you posted was about the hazards posed to other satellites, not the "danger" posed to people on the ground as you have been going on about.Quote:
Originally Posted by Horn
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That video you posted was about the hazards posed to other satellites, not the "danger" posed to people on the ground as you have been going on about.Quote:
Originally Posted by Horn
Quick course Math 101 (Joe six pack advanced study class)
Good satalitte + space junk projectiles = off course degrading orbit satalitte, and or more space junk projectiles
Wash, rinse, repeat.
These recent falls could have been designed to fall, to alleviate.
Did you watch the video? They were talking about the small pieces that are up there. Small pieces will absolutely burn up in the atmosphere.
In fact, to address your concern it would be a good thing for them to smash together and break into those small pieces talked about in the video. It's when they stay intact that they could possibly hit the ground...and then only if it is any of the larger satellites. Most are relatively small and would themselves burn up upon re-entry.
What you are so worried about is a complete non-issue. You'd be better off worrying about an invasion from Mars.
Falling Space Junk Video
http://www.youtube.com/watch?v=6sx5D76nLdk
It could happen to you!
Back before the junk, we still had 'Space Goat Farts':
http://www.chicagopostcardmuseum.org...of_chicago.gif
The Second Red Star represents the Chicago Fire of October 8-10, 1871. -link
http://en.wikipedia.org/wiki/Great_Chicago_Fire
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An alternative theory, first suggested in 1882, is that the Great Chicago Fire was caused by a meteor shower. At a 2004 conference of the Aerospace Corporation and the American Institute of Aeronautics and Astronautics, engineer and physicist Robert Wood suggested that the fire began when Biela's Comet broke up over the Midwest and rained down below. That four large fires took place, all on the same day, all on the shores of Lake Michigan, suggests a common root cause. Eyewitnesses reported sighting spontaneous ignitions, lack of smoke, "balls of fire" falling from the sky, and blue flames. According to Wood, these accounts suggest that the fires were caused by the methane that is commonly found in comets. However, since meteorites are not known to start fires and are usually cool to the touch after reaching the ground, this theory has not found favor in the scientific community.
Space.com: But What About Comet Elenin?
06 October 2011
http://en.wikipedia.org/wiki/Biela%27s_CometQuote:
Then on Sept. 10, comet Elenin reached its closest approach to the sun, and that seems to put the final nail in its coffin. The small comet failed to materialize last week in camera views from NASA's sun-watching Solar and Heliospheric Observatory (SOHO), so it seems very unlikely that there will be anything to see this week, when there was hope that it would be visible as a morning comet.
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The comet appeared as predicted during its 1832 apparition, when it was first recovered by William Herschel on 24 September. The orbital elements and ephemeris calculated by Olbers for this return created something of a popular sensation, as they showed that the comet's coma would likely pass through the Earth's orbit during a close approach on October 29. Subsequent predictions, in the media of the time, of the Earth's likely destruction overlooked the fact that the Earth itself would not reach this point until November 30, a month later, as pointed out by François Arago in an article designed to allay public fears. Despite this, the fact that Biela's Comet was the only comet known to intersect the Earth's orbit was to make it of particular interest, both to astronomers and the public, during the 19th century...
Neither part could be found on their predicted periodic returns in 1859 (in any case an unfavourable return for viewing), 1865, and 1872. However, on November 27, 1872, a brilliant meteor shower (3,000 per hour) was observed radiating from the part of the sky where the comet had been predicted to cross in September 1872. This was the date when Earth intersected the comet's trajectory. These meteors became known as the Andromedids or "Bielids" and it seems apparent that they indicated the death of the comet. The meteors were seen again on subsequent occasions for the rest of the 19th century, but have now faded away, probably due to gravitational disruption of the main filaments.
http://www.bautforum.com/showthread....52#post1882252
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29-April-2011 01:38 AM #5 tony873004
This is an interesting question, so I thought I'd set it up in Gravity Simulator to see if there's any chance of a meteor shower or storm from debris shed by Elenin at perihelion. Elenin crosses Earth's orbit on October 19, and Earth crosses Elenin's orbit 12 days later on October 31. Earth passes 4.6 million km below Elenin's orbital path. So any debris shed by Elenin at perihelion will have to have enough velocity to fall 12 days behind Elenin and travel 4.6 million km vertically. The vertical part is easy. It's got about 50 days from perihelion to the point Earth crosses its path. So it needs a velocity of about 1 km/s.
So I created 100 particles exploding from Elenin in random directions, moving away at 1 km/s. But this wasn't enough velocity to create the 12 day lag. So I pumped up the velocity. It took a velocity of 11 km/s for any particles shed from Elenin to come close to Earth. I don't know anything about the dynamics of the surfaces of comets that get superheated, but I would guess that this too high to be realistic.
The first image shows a cloud of particles fleeing Elenin as it gets superheated from the Sun at perihelion. The particles are escaping in random 3D directions at velocities of 11.5 km/s.
http://orbitsimulator.com/BA/elenindebris5.GIF
The next image shows Earth (blue dot) orbit of the Moon (gray dot to the left of Earth), Elenin (orange), and the debris shed by Elenin (maroon) as the debris cloud encompasses the Earth/Moon system.
http://orbitsimulator.com/BA/elenindebris3.GIF
May have to eject all the satellites with that particle trajectory.
Its been nice chattin with ya, keehah. goin 3 for 3 in this thread. Attachment 1263
Seems like a lot of trouble to go to. Instead, just let the particles of comet blast them to pieces. That way all the little pieces will burn up as they slowly re-enter the atmosphere over the next 10,000 years or so.Quote:
Originally Posted by Horn
...and we'll throw a big party with the money we save on rockets.
Also, perhaps it'll create a debris field big enough to prevent all future space travel due to the constant bombardment of tiny little pieces of busted satellites tearing holes in any new satellites/space ships sent up there to replace the destroyed ones. Wouldn't that be cool?
It'd be just like killing two birds with one stone......or comet, as the case may be. lol
Just as I suspected, Joe (& his dualistic nature) at home inside a Cuisinart.
Do you use machines as marital aids?
Just what exactly are you worried about with satellites? First you're worried about them crashing to Earth and hitting you or your kids swingset, and then after that theory is dispelled you morph into being worried about debris in orbit. These are two seperate issues. The first is a virtual non-issue and the second is inevitable at some point no matter what we do.Quote:
Originally Posted by Horn
...and no, using rockets the size of Saturn Vs to launch every satellite in order to have fuel sufficient to eject them from Earth orbit at their end of life, is not an option.