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☖ Forums → Discussion Forum → Meteorite
12
Meteorite
2006-06-27, 2:48 AM #1
of doom, and no joke.

http://www.youtube.com/watch?v=yYgEwXWilUc&e

really insane. but something like this wont happen in our lifetime that's for sure. still freaky.
Pie.
2006-06-27, 6:26 AM #2
Originally posted by Nitropenguin:
but something like this wont happen in our lifetime that's for sure.

That's what you think :v:

I like the part where it looks like the earth is wearing a big bowl of cereal on it's head.
2006-06-27, 8:04 AM #3
Pretty cool, but would it actually happen like that? I'd imagine it would start out similar, but instead of the entire planet being set ablaze and the oceans boiling away we'd just end up with nuclear winter.

Obviously it would depend on the size of the object that hits.
2006-06-27, 10:56 AM #4
When object heads for Earth (with the Sun's light coming behind this object I assume), shouldn't the shadow become smaller as it gets near?
SnailIracing:n(500tpostshpereline)pants
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2006-06-27, 11:22 AM #5
Doesn't it oddly look like a Death Star on 00:16?
2006-06-27, 11:25 AM #6
Originally posted by finity5:
That's what you think :v:

That's what she said. :v:
I had a blog. It sucked.
2006-06-27, 11:33 AM #7
my paint job sucks
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2006-06-27, 11:34 AM #8
Why do people say "ZOMG"? It's like the dumbest thing that ever came from the internet
SnailIracing:n(500tpostshpereline)pants
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2006-06-27, 11:35 AM #9
Originally posted by Echoman:
Why do people say "ZOMG"? It's like the dumbest thing that ever came from the internet


That's basically the reason why we say it. ;)
ORJ / My Level: ORJ Temple Tournament I
2006-06-27, 11:36 AM #10
Originally posted by Echoman:
Why do people say "ZOMG"? It's like the dumbest thing that ever came from the internet

Because it'st he dumbest thing that ever came from the interent and is funny in its stupidity.
I had a blog. It sucked.
2006-06-27, 11:39 AM #11
edited for cranky people that don't think internet lingo is funny
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2006-06-27, 11:42 AM #12
I myself am partial to "Sweet Cheezus!"

Let Cheezus into your life and let him flavor it.
I had a blog. It sucked.
2006-06-27, 11:46 AM #13
Pfft, we've got Bruce Willis for this stuff.
Sorry for the lousy German
2006-06-27, 11:53 AM #14
It's just as likely (if not more so) to happen in your lifetime than in any other person's lifetime, Nitro :). In the future, it's most likely that detection and prevention technologies will improve, making it less likely... But you're really, basically right... there's no way something THAT large could really sneak up on us... That looks like someone shoved the moon into the earth, haha.
2006-06-27, 12:02 PM #15
All right which one of you schmucks forgot to cast Holy?
Code to the left of him, code to the right of him, code in front of him compil'd and thundered. Programm'd at with shot and $SHELL. Boldly he typed and well. Into the jaws of C. Into the mouth of PERL. Debug'd the 0x258.
2006-06-27, 12:10 PM #16
that's one rather large meteorite, its more like the size of pluto and the other kiper-belt objects/planets, looks almost bigger than our own moon.

The chance of one of them hitting us though is very unlikely (although not impossible) and to be honest if something that large hit the Earth, I doubt it'd be able to hold itself together. Although that would all depend on the actual makeup of the meteorite, there'd be a good chance if something from the Kiper-belt was coming for us a large percentage of it would be ice and would burn up on its way into the inner solar system.

still, nice video.
People of our generation should not be subjected to mornings.

Rbots
2006-06-27, 4:18 PM #17
Where'd all the lava come from? I think if something that big hit the earth, it would just break, rather than getting covered in lava..
DO NOT WANT.
2006-06-27, 5:01 PM #18
So this is how worlds end.

That wall of death was grotesquely high.
Cordially,
Lord Tiberius Grismath
1473 for '1337' posts.
2006-06-27, 5:03 PM #19
PANICCC
2006-06-27, 5:27 PM #20
that's actually pretty awesomely made

n btw, the captions say for the respective locales (if you couldn't tell where they were already):

3 hrs later - himalayas
1 day later - amazon

mediterranean sea (i think)
一个大西瓜
2006-06-27, 5:27 PM #21
They should've shown the ISS getting hit by that "cereal bowl" of flaming debris. :ninja:
2006-06-27, 5:29 PM #22
It's suspected that an object that size hit the earth - and the earth did break up, and that's why we have a moon that's so large in relation to us.

Something that size is definitly way at the 'unlikely' end of the scale. There aren't many objects that size left in the solar system that aren't already in stable orbits. That was a meteorite, that was PLANETOID. There were other problems with it, too. The earth-side of the object had lava on it before it struck. It'd need a bit more mass to keep it's center hot enough to still have an active surface. As such, it would be solid rock; and then it wouldn't just splatter all over the earth. It would crack us like an egg, spilling our precious insides across the cosmos.

I'd like to be in a spaceship looking down when it happens. Of course, afterwards, I'd be in deep ****.
Wikissassi sucks.
2006-06-27, 5:30 PM #23
It's a simulation, Doctor.
2006-06-27, 5:31 PM #24
Originally posted by Isuwen:
I'd like to be in a spaceship looking down when it happens. Of course, afterwards, I'd be in deep ****.



Not if you punched the hyperdrive throttle. ;)
2006-06-27, 5:31 PM #25
Also, the shadow would get bigger. Remember, light bends around the edges of objects to a small extent. The sun is so far away that you can consider it's rays parallel.

And... http://www.youtube.com/watch?v=g4V93tm466U&mode=related&search=
Wikissassi sucks.
2006-06-27, 5:33 PM #26
Doctor, it was a simulation!
2006-06-27, 6:13 PM #27
XD That's brilliant in it's stupidity. *pong bar slides into view... blip.. cheering!*

And well, I don't thin wether or not all the lava in the planet would get shaken to the surface would matter much really if such a thing hit us or if we'll get a nuclear winter... we'd be doomed either way. <.<;; Unless scientists make a giant pong bar and launch a small crowd into space to cheer at it for a job well done.
Seishun da!
2006-06-27, 6:53 PM #28
. . .could anyone else picture Obi-Wan and Anakin battling each other when it shows the lava? :confused:
My blawgh.
2006-06-27, 6:56 PM #29
Not exactly. I was imageing how much of a mess that would cause for me to clean up all that lava once you guys are all dead.
2006-06-28, 12:43 PM #30
Originally posted by Isuwen:
Also, the shadow would get bigger. Remember, light bends around the edges of objects to a small extent. The sun is so far away that you can consider it's rays parallel.

And... http://www.youtube.com/watch?v=g4V93tm466U&mode=related&search=



have you never done shadow puppets or anything? the closer you are to a light source, the larger the shadow. the exception being with very large light sources. and to correct, light doesnt bend. it scatters (particles and waves remember.) light waves always move in a straight line, and only bend when refelected. but these waves also eject photons at random so as the wave goes

--------------------------------->

photons come off it like

----`-----,'--'-`---,-.'-`--`----`-'''---,'`-->

which causes the "light wrapping" effect. the larger the light source the higher the effect. BUT there comes a certain distance from this very large light sourse that the shadow becomes visable. but from that point onward, the shadow will shrink.

[/photography rant]
My girlfriend paid a lot of money for that tv; I want to watch ALL OF IT. - JM
2006-06-28, 12:45 PM #31
That was what I was thinking.
SnailIracing:n(500tpostshpereline)pants
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2006-06-28, 1:59 PM #32
Yes, well, with all your points; the sun IS a very large light source. :D!

Also, theres a reason shadows of planets are depicted as cones.
Wikissassi sucks.
2006-06-28, 2:30 PM #33
OUR SUN WILL SO PWN THAT METEORITE
2006-06-28, 4:27 PM #34
not to mention everything on earth wouldve been flattened on impact
2006-06-28, 6:40 PM #35
First, I don't think the mantle is pure lava like in the video. Even if it was it wouldn't cover the earth like that. And also, if lava did cover the earth why were Greek ruins left? Let's see... also why was the asteroid melting when it was in space? That makes no sense. I think the impact would have knocked the earth out of orbit too, which would have caused the moon to hit the earth.


F!
2006-06-28, 6:53 PM #36
No, the shadow won't get smaller. Consider that the sun is thousands of times farther away than the meteorite. The rays are essentially parallel. (Also, "photons coming off a light ray randomly"? What?)

Yes, it could melt while still in space. The Earth would generate huge gravitational tidal forces on the asteroid that could indeed tear it apart like that. Ever seen "Armageddon"? Crappy movie for the most part, but it was the tidal forces that caused the rock storm which damaged the nuke so that Bruce Willis could heroically save the day.
Stuff
2006-06-28, 6:56 PM #37
Originally posted by kyle90:
No, the shadow won't get smaller. Consider that the sun is thousands of times farther away than the meteorite. The rays are essentially parallel. (Also, "photons coming off a light ray randomly"? What?)

Yes, it could melt while still in space. The Earth would generate huge gravitational tidal forces on the asteroid that could indeed tear it apart like that. Ever seen "Armageddon"? Crappy movie for the most part, but it was the tidal forces that caused the rock storm which damaged the nuke so that Bruce Willis could heroically save the day.


Hurray Bruce Willis!
2006-06-29, 10:16 AM #38
Originally posted by kyle90:
No, the shadow won't get smaller. Consider that the sun is thousands of times farther away than the meteorite. The rays are essentially parallel. (Also, "photons coming off a light ray randomly"? What?)

Yes, it could melt while still in space. The Earth would generate huge gravitational tidal forces on the asteroid that could indeed tear it apart like that. Ever seen "Armageddon"? Crappy movie for the most part, but it was the tidal forces that caused the rock storm which damaged the nuke so that Bruce Willis could heroically save the day.



light is both a particle and a wave. as the waves travel particles break off of it. i thought this an easy concept to understand.

i'll concede the point to any physics major who can tell me otherwise, but from my studies as a photo major (a subject dedicated to LIGHT and the recording of it.) this is what i've read in multilple textbooks and been told by multiple instructers at multiple institutions. this isn't just a crazy notion i have.

also you must take into account the shrinking distance of the asteroid to the earth. have you ever seen a shadow cast that is smaller than the object in question? teh shadow would start out as lager than the asteroid and as it moves closer, it would contract to actual size.
My girlfriend paid a lot of money for that tv; I want to watch ALL OF IT. - JM
2006-06-29, 10:41 AM #39
Normal light is incoherent. Meaning that it is scattered all over. Coherent light is like laser light. All light travels in one direction.
Code to the left of him, code to the right of him, code in front of him compil'd and thundered. Programm'd at with shot and $SHELL. Boldly he typed and well. Into the jaws of C. Into the mouth of PERL. Debug'd the 0x258.
2006-06-29, 1:27 PM #40
Coherence has nothing to do with direction though. A flashlight isn't a coherent beam but you can still focus it so it all goes in the same direction.

Also, I still don't believe that photons come off a light ray in random directions. Otherwise you'd be able to see laser beams in a vacuum.

Originally posted by Ford:
have you ever seen a shadow cast that is smaller than the object in question?


Yes. The shadow of the Moon during an eclipse, for example.

Anyways the reason that light bends slightly around edges of things is because of diffraction. But in the case of an asteroid that effect would be hardly noticeable.
Stuff
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