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5 Oct 2024 05:10:53 EDT (-0400)
  Re: Asteroid (Message 1 to 8 of 8)  
From: portelli
Subject: Re: Asteroid
Date: 25 Jan 1999 14:38:03
Message: <36ACF394.B4144471@pilot.msu.edu>
Nice but it is too jaggy to be an asteriod.  Aren't they fairly smooth?

Ken wrote:
> 
> Messing around with height fields.
> 
> --
> Ken Tyler
> 
> tyl### [at] pacbellnet
> 
>   ------------------------------------------------------------------------
>  [Image]


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From: Ken
Subject: Re: Asteroid
Date: 25 Jan 1999 14:55:49
Message: <36ACCC3B.D87F9C13@pacbell.net>
portelli wrote:
> 
> Nice but it is too jaggy to be an asteriod.  Aren't they fairly smooth?
> 
> Ken wrote:
> >
> > Messing around with height fields.

Can't really say. I've never actually seen one.
I would think that given the number of impacts
that they incure in the asteroid belts they would
have very little chance of being smooth. Smooth
would imply a wearing down by friction which does
not occur in space.

Oh well next time I get a chance to see one up close
I'll change my model accordingly :)

-- 
Ken Tyler

tyl### [at] pacbellnet


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From: Ben Birdsey
Subject: Re: Asteroid
Date: 25 Jan 1999 15:53:57
Message: <36ACDB1A.5A936E38@unlgrad1.unl.edu>
That's a really amazing asteroid!  It may be the best CG asteroid I've ever
seen (well, outside Armageddon...)

	A couple of comments.

	From pictures I've seen of large asteroids, the craters seem to be filled up. 
Probably with dust and leftover bits from collisions with other asteroids.  I
mean the gravity's tiny, but not totally gone.

	Craters on real asteroids might look a little eroded since most impacts would
be with asteroids that are really tiny.  They would chip away at the landscape
and create more dust to fill the craters!

	I recently read an article in Nature which was about what a massive impact
would do to an asteroid (If I remember right, they were simulating a rock the
size of a house impacting at 20,000 mph).  Well, the bottom line was this.  It
looks like any impact that could make a crater of any size (>0.25 the size of
the asteroid) would totally shatter it!  But there is that moon of Jupiter or
Saturn with a crater that makes it look like the death star!

	Anyway, just tell everyone it's artistic license.


	In Him, 
	Ben Birdsey


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From: Rudy Velthuis
Subject: Re: Asteroid
Date: 25 Jan 1999 16:42:32
Message: <36ace548.0@news.povray.org>
Ken schrieb in Nachricht <36ACCC3B.D87F9C13@pacbell.net>...

>Oh well next time I get a chance to see one up close
>I'll change my model accordingly :)

If you still have the time <g> 

(I'm referring to the film Deep Impact)

-- 
Rudy Velthuis


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From: Spider
Subject: Re: Asteroid
Date: 25 Jan 1999 17:44:04
Message: <36ACF2A8.A2C7A37E@bahnhof.se>
Neato,
//Spider

Ken wrote:
> 
> Messing around with height fields.
> 
> --
> Ken Tyler
> 
> tyl### [at] pacbellnet
> 
>  
------------------------------------------------------------------------------------------
>  [Image]


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From: Dan Connelly
Subject: Re: Asteroid
Date: 25 Jan 1999 23:58:23
Message: <36AD4B66.F3037B9A@flash.net>
portelli wrote:
> 
> Nice but it is too jaggy to be an asteriod.  Aren't they fairly smooth?
> 

Why?

-- 
http://www.flash.net/~djconnel/


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From: portelli
Subject: Re: Asteroid
Date: 26 Jan 1999 16:58:59
Message: <36AE6630.FD16E463@pilot.msu.edu>
When other asteriod smash into it, they melt( if they are made out of
metals or solid rock) when they cool they are smooth, kind of.  Like the
moon it is smooth, or looks smooth from dust.  I'm not sure but most
pictures I've seen of asteroids are fairly smooth.  They have craters
though. 

Dan Connelly wrote:
> 
> portelli wrote:
> >
> > Nice but it is too jaggy to be an asteriod.  Aren't they fairly smooth?
> >
> 
> Why?
> 
> --
> http://www.flash.net/~djconnel/


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From: Lue Ebra
Subject: Re: Asteroid
Date: 28 Jan 1999 23:26:30
Message: <36b13876.0@news.povray.org>
Ben Birdsey wrote in message <36ACDB1A.5A936E38@unlgrad1.unl.edu>...
> That's a really amazing asteroid!  It may be the best CG asteroid I've
ever
>seen (well, outside Armageddon...)
>
> A couple of comments.
>
> From pictures I've seen of large asteroids, the craters seem to be filled
up.
<clip>
> I recently read an article in Nature which was about what a massive impact
>would do to an asteroid (If I remember right, they were simulating a rock
the
>size of a house impacting at 20,000 mph).  Well, the bottom line was this.
It
>looks like any impact that could make a crater of any size (>0.25 the size
of
>the asteroid) would totally shatter it!  But there is that moon of Jupiter
or
>Saturn with a crater that makes it look like the death star!
>
There are a few meteorites on display in museums (The Smithsonian's sure to
have one, as well as Meteor Crater, Arizona)

> Anyway, just tell everyone it's artistic license.
like what looks like a submarine in the Pearl Harbour scene on the IRTC
page?
Someone told me that there were no submarines at Pearl at the time of the
attack (He was a WW2 vet that served in the south Pacific at the time)
>
> In Him,
> Ben Birdsey
Lue Ebra
lue### [at] nxuscom
www.electro-net.com/~lueebra
"The only constant in the universe is change"


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