Re: [Vo]:Near miss - hopefully

2013-02-05 Thread Jed Rothwell
mix...@bigpond.com wrote: True, however I don't see the sense in painting only one side white. Why not the whole thing? That's what I meant. I did not mean to give it a spin. I meant sunlight will push it the way it pushes a Crooks radiometer, although there is some question whether that

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread mixent
In reply to David Roberson's message of Tue, 5 Feb 2013 00:27:20 -0500 (EST): Hi, [snip] Have you ever tried to paint an asteroid? :-) Have you ever tried to paint half an asteroid? :) Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread David Roberson
Subject: Re: [Vo]:Near miss - hopefully In reply to David Roberson's message of Tue, 5 Feb 2013 00:27:20 -0500 (EST): Hi, [snip] Have you ever tried to paint an asteroid? :-) Have you ever tried to paint half an asteroid? :) Regards, Robin van Spaandonk http://rvanspaa.freehostia.com

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread mixent
In reply to Jed Rothwell's message of Tue, 5 Feb 2013 09:48:08 -0500: Hi, Upon thinking further about this, painting it may not actually make much difference at all, because some of the photons are already reflected, and most of those absorbed are radiated again more or less straight away,

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread Terry Blanton
Paintball railgun.

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread Jed Rothwell
Terry Blanton hohlr...@gmail.com wrote: Paintball railgun. From Earth, you mean?!? Wow! We gotta make one of them. Splat the moon! I recall that in the early 1950s someone planning a moon rocket thought about loading it with flower or white powder so that when it impacted on the moon they

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread Terry Blanton
On Tue, Feb 5, 2013 at 8:46 PM, Jed Rothwell jedrothw...@gmail.com wrote: Terry Blanton hohlr...@gmail.com wrote: Paintball railgun. From Earth, you mean?!? Wow! We gotta make one of them. Splat the moon! I want to shoot it!

Re: [Vo]:Near miss - hopefully

2013-02-05 Thread David Roberson
for hunting. Dave -Original Message- From: Terry Blanton hohlr...@gmail.com To: vortex-l vortex-l@eskimo.com Sent: Tue, Feb 5, 2013 10:08 pm Subject: Re: [Vo]:Near miss - hopefully On Tue, Feb 5, 2013 at 8:46 PM, Jed Rothwell jedrothw...@gmail.com wrote: Terry Blanton hohlr...@gmail.com wrote

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread Jed Rothwell
Eric Walker wrote: If the mass of an orbiting satellite is sufficient to deflect the incoming asteroid, I doubt the asteroid is big enough to do much upon impact. If the asteroid is big enough to do much, I doubt the mass of a satellite would deflect it even by a small amount. I agree. Bear

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread mixent
In reply to Jed Rothwell's message of Mon, 04 Feb 2013 15:02:45 -0500: Hi, [snip] Eric Walker wrote: If the mass of an orbiting satellite is sufficient to deflect the incoming asteroid, I doubt the asteroid is big enough to do much upon impact. If the asteroid is big enough to do much, I

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread Jed Rothwell
mix...@bigpond.com wrote: This one is not as wide as it is long, so I estimate the mass at about 7 tons. So it is about the same as a 1.5 ton car whacking into 20 g songbird. Not likely to deflect the path much. But even a tiny effect will change the orbit significantly over time. That

RE: [Vo]:Near miss - hopefully

2013-02-04 Thread Jones Beene
The unspoken assumption is that the asteroid is composed of normal matter - and if so, then it would take substantial mass to deflect it. What would be the effect of an asteroid composed of other kinds of matter - such as mirror matter in our solar system, and was there a precedent for that

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread John Berry
Interesting. I had not heard of mirror matter before, Definite shares of a certain Star Trek episode. On Tue, Feb 5, 2013 at 11:13 AM, Jones Beene jone...@pacbell.net wrote: The unspoken assumption is that the asteroid is composed of normal matter – and if so, then it would take substantial

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread David Roberson
4, 2013 5:13 pm Subject: RE: [Vo]:Near miss - hopefully The unspoken assumption isthat the asteroid is composed of normal matter – and if so, then it wouldtake substantial mass to deflect it. What would be the effectof an asteroid composed of “other” kinds of matter – such asmirror matter

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread Jed Rothwell
Jones Beene jone...@pacbell.net wrote: …there are some who think that the Tunguska event was a comet or asteroid composed of another kind of matter. If this is something like anti-matter and it whacks into a satellite, I assume that would cause a large explosion. Wouldn't it? I doubt the

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread ChemE Stewart
this scenario? Dave -Original Message- From: Jones Beene jone...@pacbell.net To: vortex-l vortex-l@eskimo.com Sent: Mon, Feb 4, 2013 5:13 pm Subject: RE: [Vo]:Near miss - hopefully The unspoken assumption is that the asteroid is composed of normal matter – and if so

RE: [Vo]:Near miss - hopefully

2013-02-04 Thread Jones Beene
FWIW - this interesting paper turned up just now in pursuit of other models of mirror hydrogen (there are many besides the one of Robert Foot, which is the most well-known). http://arxiv.org/pdf/hep-ph/0111381.pdf Stewart's view seems to be somewhat similar, but now we are presented with

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread ChemE Stewart
I think 95% of the universe's energy is collapsed and locked behind that small surface area of particles that I consider micro black hole balls of entropy. Which is very good for life else the tremendous heat and radiation would kill us. Interestingly, if you run the calculator at the following

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread mixent
In reply to Jed Rothwell's message of Mon, 4 Feb 2013 16:31:30 -0500: Hi, [snip] So it is about the same as a 1.5 ton car whacking into 20 g songbird. Not likely to deflect the path much. But even a tiny effect will change the orbit significantly over time. That is why they are talking about

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread David Roberson
: Mon, Feb 4, 2013 11:03 pm Subject: Re: [Vo]:Near miss - hopefully In reply to Jed Rothwell's message of Mon, 4 Feb 2013 16:31:30 -0500: Hi, [snip] So it is about the same as a 1.5 ton car whacking into 20 g songbird. Not likely to deflect the path much. But even a tiny effect will change

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread mixent
In reply to Jed Rothwell's message of Mon, 4 Feb 2013 20:20:49 -0500: Hi, [snip] I doubt the Tunguska event was caused by anything other than normal matter, but on the other hand they have found no sign of the meteorite. .if it was a gravel meteorite then it may have broken up completely while

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread mixent
In reply to David Roberson's message of Mon, 4 Feb 2013 23:29:27 -0500 (EST): Hi, [snip] Even if they spin, the reflection from the painted side would generate a net force away from the sun's location. This assumes your paint is more reflective than the raw untreated surface. True, however I

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread David Roberson
, Feb 4, 2013 11:57 pm Subject: Re: [Vo]:Near miss - hopefully In reply to David Roberson's message of Mon, 4 Feb 2013 23:29:27 -0500 (EST): Hi, [snip] Even if they spin, the reflection from the painted side would generate a net force away from the sun's location. This assumes your paint is more

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread Eric Walker
On Mon, Feb 4, 2013 at 9:27 PM, David Roberson dlrober...@aol.com wrote: Have you ever tried to paint an asteroid? :-) You could have a lot of fun time with rockets filled with paint and high explosives. Eric

Re: [Vo]:Near miss - hopefully

2013-02-04 Thread David Roberson
Yeah, I think so. How do you volunteer for this mission? Dave -Original Message- From: Eric Walker eric.wal...@gmail.com To: vortex-l vortex-l@eskimo.com Sent: Tue, Feb 5, 2013 12:29 am Subject: Re: [Vo]:Near miss - hopefully On Mon, Feb 4, 2013 at 9:27 PM, David Roberson dlrober

[Vo]:Near miss - hopefully

2013-02-03 Thread Jones Beene
On Feb. 15, a week from Friday - a decent sized asteroid will come extremely close to Earth... within the orbit of many satellites, it would seem ... NASA sez: we've never seen an object this big get so close to Earth. How close exactly? 17,200 miles. I would like to think that the Pleiades

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread ChemE Stewart
Let's face it, they are still trying to track Santa Claus and believe comets are balls of snow and ice that can pass through the sun's atmosphere like Comet Lovejoy did and shoot x-rays and sparks millions of miles long. Will be an interesting year ahead. Stewart darkmattersalot.com On Sun,

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread Axil Axil
http://www.youtube.com/watch?v=GwidzVHvbGIfeature=player_embedded more info in this video. Cheers:Axil On Sun, Feb 3, 2013 at 4:08 PM, Jones Beene jone...@pacbell.net wrote: On Feb. 15, a week from Friday - a decent sized asteroid will come extremely close to Earth... within the orbit

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread ChemE Stewart
Here are some interesting links on comet behavior if anyone is interested. They do not behave like the snowballs I knew and loved growing up in Maine. 1. Plasma radiationhttp://www.agu.org/pubs/crossref/1993/93JA02532.shtml 2. Gamma

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread Alan Fletcher
From: Jones Beene jone...@pacbell.net\ Sent: Sunday, February 3, 2013 1:08:49 PM\ On Feb. 15, a week from Friday - a decent sized asteroid will come extremely close to Earth... within the orbit of many satellites NASA sez: we've never seen an object this big get so close to Earth. How close

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread Eric Walker
On Sun, Feb 3, 2013 at 1:08 PM, Jones Beene jone...@pacbell.net wrote: asteroid - and determined that in the unlikely event it hit something fairly large in Earth orbit, the asteroid orbit could not be deflected substantially enough to be at risk. If the mass of an orbiting satellite is

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread Axil Axil
http://en.wikipedia.org/wiki/Gravitational_keyhole The danger is not over. A *gravitational keyhole* is a tiny region of space where a planet's gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass. On Sun, Feb

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread ChemE Stewart
Incoming massive comets can also pull other gravitational bodies into the inner solar system along with them On Sun, Feb 3, 2013 at 5:23 PM, Axil Axil janap...@gmail.com wrote: http://en.wikipedia.org/wiki/Gravitational_keyhole The danger is not over. A *gravitational keyhole* is a tiny

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread Rob Dingemans
Hi, On 3-2-2013 23:37, ChemE Stewart wrote: Incoming massive comets can also pull other gravitational bodies into the inner solar system along with them It seems to me you are looking for some kind of doomsday scenario and I don't think that's going to happen. Cheer up (Luke), you are

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread mixent
In reply to Eric Walker's message of Sun, 3 Feb 2013 14:14:27 -0800: Hi, [snip] On Sun, Feb 3, 2013 at 1:08 PM, Jones Beene jone...@pacbell.net wrote: asteroid - and determined that in the unlikely event it hit something fairly large in Earth orbit, the asteroid orbit could not be deflected

Re: [Vo]:Near miss - hopefully

2013-02-03 Thread ChemE Stewart
Right, about 5% light matter and 95% dark matter/energy. I am not a doomsday guy, I just think we should realize what we are experiencing. We have too many phenomenons IMHO. Of course ignorance is bliss and the dinosaurs probably though those big fireballs looked cool. On Sun, Feb 3, 2013 at