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Deep Impact: What If We Changed Trajectory?
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Ghost wolfemoon
7/5/2005 7:12 PM
Report abusive post | Deep Impact: What If We Changed Trajectory?
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I am not by any means an astrophysicist but do know math enough to wonder what a 23,000 MPH collision between an 800 pound “bullet” and an object the size of Manhattan would do.
If I were a very hard working agent, I would go to one of my firearm reloading manuals and figure out the foot-pounds of energy produced by a 800 pound bullet flying at 23,000 MPH but I am not a hard working agent today…whoops the cat is out of the bag.
You do not need math or science to realize that was one heck of a collision!
UNDERSTATEMENT!
Now to the point of this post.
It is doubtful that the copper bullet hit the comet exactly head on thus spreading out the force equally in all directions. That being said, would or could such a collision change the path of the comet?
I have no idea of the mass of the comet but it is probably millions of tons…just a guess. The force of such a collision between an 800 pound object and a multi ton object in space, not covered by such things as gravity, air density, and such laws we use on earth to measure such effects, would possibly be of more concern in space. How much of a nudge would it take to alter the path of that comet?
Remember the comet has or had a trajectory based on mass, weight, and the direction it was traveling. The law of conservation of motion I think. An object at rest tends to stay at rest and an object in motion tends to stay in motion in the same direction unless acted on by another force or something like that.
A nudge of one thousands of an inch there could be quite a long way in another million miles, think of it. Draw a V with the two lines as close as possible in the beginning and see how far they are apart an inch away from the beginning, a foot away from the beginning and you will see the point being made here.
If that comet were moved even the width of a hair off it’s original course, in a million miles, two million, and on, there would be a grand difference.
Now to the second point…
Just out of curiosity, how close was that comet going to be to the earth? I might have read somewhere but do not remember if it would even be close but even if not, a change in it’s trajectory could well cause it to HIT something it was not suppose to hit. Remember the rule, for every action, there is an equal and opposite action.
Maybe I just don’t think we should be doing things like shooting an 800 pound bullet into a mass the size of Manhattan. I do not think we are smart enough for such things yet.
Ghostwolfemoon |
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Upstate NY
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
I just knew it lol here we gooooooooooooooo |
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Yada Yoda
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
50% population reducation here we come ! 
If there´s anything left of the thing on arrival that is... |
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Yada Yoda
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
-a |
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Upstate NY
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Maybe I just don’t think we should be doing things like shooting an 800 pound bullet into a mass the size of Manhattan. I do not think we are smart enough for such things yet.
BINGO! not in america anyway lol. for every action there is an equal re-action is correct. It is a good thing it was a show and not real life is all I have to say or we could be destroyed by a flying comet hahahahaha. |
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Pine Eel
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
F=ma, so, no. It would be like a surfer changing the trajectory of the wave he´s on just by riding it. |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
two words:
Butterfly Effect
Granted the odds are significantly less than a million to one...but physical reality is funny that way sometimes.. ;) |
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Warrior Senz
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
I have also wondered about OP´s topic.
I don´t imagine the astro types on this forum could nudge themselves away from harassing Planet X threads long enough to show us the data or direct us to a link showing some orbits of space balls and their relationship to earth?
If NASA is simply experimenting with a harmless comet, it makes me wonder if big brother is approaching from behind. |
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^TrInItY^
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"a change in it’s trajectory could well cause it to HIT something it was not suppose to hit"
maybe that was the idea...
better them than us...
interplanetary war on an stellar scale :)
God Bless America! |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"Maybe I just don’t think we should be doing things like shooting an 800 pound bullet into a mass the size of Manhattan. I do not think we are smart enough for such things yet."
I think what we shouldn´t be doing is letting you people at GLP who obviously a product of our incredibly bad education system and its woefully lacking science, who it seems now are afraid of science and distrustful of everybody and everything, spewing spittle and waving their hands at every thing science does as is if were some kind of magic and completely unfathomable, make comments about being "smart enough for such things yet".
People who understand the science behind Deep Impact watched it with the interest it deserved, not with the interest of the typical GLP ignorant paranoid. Since the mission went off perfectly, and telescopes world wide not under the control of NASA can verify it AND the fact that the comet hasn´t veered off course into a death spiral into Earth, we can see just who was vindicated. |
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Rev. Star Gazer
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
If you think people at GLP are ignorant, paranoid, idiots then why are you here? This is afterall, a site just for conspiracy theorists, ufos and the lunatic fringe! If you want straight science without paranoid speculation, there are plenty of other forums. |
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...
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Well said Rev |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
It had to change the path of the comet according to physics. The thing is, it only altered it by a factor of one nano-cunt-hair. |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"AND the fact that the comet hasn´t veered off course into a death spiral into Earth,"
A fact? really?
How you know that? Where is the data you saw that proove the course isn´t changed at all, and is EXACTLY THE SAME THAN BEFORE THE IMPACT? And you are sure of that after just of couple of days after impact?
Come on, push the links (if you have them or course...) |
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idol harobed
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Kinetic energy = mv²/2 where m is the mass of the object in motion. |
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Alex ™
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
""a change in it’s trajectory could well cause it to HIT something it was not suppose to hit"
Trin: maybe that was the idea...
-- I second that. |
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zacksavage
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"If you want straight science without paranoid speculation, there are plenty of other forums."
No,...he wants you to ´Repect his Auth-or-a-tae!!!!"
Z |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
The other thing is that when you hurl an object out from Earth, it can only cause the object to move farther away. To make an object move closer, you´d have to send the impactor out, then turn it around and bring it back towards Earth, then hit the object. |
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idol harobed
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
According to your data, its energy is about 2.8x10¹°ft.lbf |
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idol harobed
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Now we must figure out what 2.8x10¹°ft.lbf can do to an object the size of comet Tempel. |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
I don´t think we have anything to worry about this orbit...That had to be one hell of a "gas pocket" they hit to ´jet´ the thing all the way over here...but what about future orbits? 20-30 years down the line etc? |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"If you think people at GLP are ignorant, paranoid, idiots then why are you here? This is afterall, a site just for conspiracy theorists, ufos and the lunatic fringe! "
Because idiots like you need to be countered.
This is a free forum. Why are you so interested in stifling free speech? Is it because your ideas are so stupid that you can´t back them up with credible evidence?
Your mind is polluted by anti-reason. |
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Deacon Blue
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
1) The calculation has been done.
Worst case scenario (maximum deviation from previous orbit), the comet will have been displaced 10 meters by the year 2024!
2) Comet Tempel 1 orbits between the orbits of Mars and Jupiter and will continue to do so. |
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Rev. Star Gazer
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
 OK - yes a free speech forum (never said you had to leave - just that it´s your choice to hang out with us.) - if belittling other people is the way to get your sickness fed then by all means carry on! |
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idol harobed
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"1) The calculation has been done.
Worst case scenario (maximum deviation from previous orbit), the comet will have been displaced 10 meters by the year 2024!
2) Comet Tempel 1 orbits between the orbits of Mars and Jupiter and will continue to do so."
LOL! Thanks.
Where can I find information on the mass of Tempel? |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Are you telling us you have had sufficent observation time post impact to predict the new orbit already? Please show us where to find this data..thanks ;) |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
[link to deepimpact.jpl.nasa.gov]
Read and learn, if you can.
Of course its trajectory has been altered, but its trajectory is being affected all the time anyway, since everything out there is interacting with everything else, gravitationally.
The effect of our probe will be miniscule, but even if it had been significant the chances of it causing the comet to eventually hit us are vanishingly small.
How do you know, for instance that it wasn´t on an eventual collision course with us anyway, some millions of years into the future? Maybe our collision has AVERTED a future impact. That is just as likely.
Why are you people so obsessed with seeing everything science does as an excuse for doom-mongering? |
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HoosierMama
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Apparently they may have been trying to see if they could...
[link to www.godlikeproductions.com]
Read down. Keywords interception and protection. |
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Anonymous Coward
12/8/2005 10:12 AM | |
zacksavage
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
Unlike that blowhard 12410,... I just love this place.
Yous guys really get after it. Hahaha,...
I hope we can count on idol to give us the facts. Go back to bad astros 12410, where you belong 
Z |
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Anonymous Coward
12/8/2005 10:12 AM | | Re: Deep Impact: What If We Changed Trajectory? | Quote |
"You do not need math or science to realize that was one heck of a collision!"
Unfortunately you do. The only way to work out the changes in velocity, direction or momentum is to do the calculations.
The other big problem is that 90% of GLP readers don´t understand the first thing about math or science, and therefore hate them with a passion. For some strange reason they´re qquite happy to trust the calcualtions of the engineers who build bridges, buildings, trains and planes, but if anybody posts even a hint that something like Tempel 1 couldn´t have changed course they get called a governemt paid debunker, liar or worse.
Maybe one of these days we´ll actually get to see one of the woo-woos do a calculation, just to show they DO understand somethign about it - although that´ll be a long time coming... |
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