Asteroid Collisions

In message ,
Andrew Spencer writes

nothing

OK, that's it. I've added webtv to my kill file.
--
"It is written in mathematical language"
Remove spam and invalid from address to reply.

"Greg Neill" wrote in message
. ..
"John Smith" wrote in message
. ..

Why think small? Open a wormhole to a black hole and
suck the buggers right off their planet through their
own rift. Sort of like a cosmic vacuum cleaning.
Thwwwwfooop!

Just be sure to get a nice tight fit betwixt their rift
and your wormhole opening.

Nice! I'd love to pull that off! The trouble is it's probably beyond the
skill of our mad scientist to build something with that range. Basically
the shorter the range the easier/cheaper it is to build.

Plus there's another problem. We can't afford to tip of the gamesmaster as
to what we are doing until the very last second, otherwise he might get
upset that some of his favorite monsters are for the chop and start putting
up artificial roadblocks.

If we can build something with just enough range to do the job then we can
plausably tell the GM that it's really for interfering with GPS satillites
(Human agents of the Gribbles have been using long range guided weapons) and
also for stealing Gribbles spacecraft. That way he won't worry too much and
let us build it without hassel. Then, at the last second when we have
everything in place we simply go ahead and just do what we really want to.
SPLATT!!!

"Greg Neill" wrote in message
. ..
"John Smith" wrote in message
. ..

Why think small? Open a wormhole to a black hole and
suck the buggers right off their planet through their
own rift. Sort of like a cosmic vacuum cleaning.
Thwwwwfooop!

Just be sure to get a nice tight fit betwixt their rift
and your wormhole opening.

Nice! I'd love to pull that off! The trouble is it's probably beyond the
skill of our mad scientist to build something with that range. Basically
the shorter the range the easier/cheaper it is to build.

Plus there's another problem. We can't afford to tip of the gamesmaster as
to what we are doing until the very last second, otherwise he might get
upset that some of his favorite monsters are for the chop and start putting
up artificial roadblocks.

If we can build something with just enough range to do the job then we can
plausably tell the GM that it's really for interfering with GPS satillites
(Human agents of the Gribbles have been using long range guided weapons) and
also for stealing Gribbles spacecraft. That way he won't worry too much and
let us build it without hassel. Then, at the last second when we have
everything in place we simply go ahead and just do what we really want to.
SPLATT!!!

"Llanzlan Klazmon The 15th" wrote in message
7.6...
"John Smith" wrote in
:

The impact speed could be anywhere between 10 and 70 km/sec. If you took
a stab at 50 km/sec and remember that kinetic energy = 1/2 mv^2. To get
the mass assume an asteroid density about the same as rock and calculate
the volume of the asteroid based on a diameter of say 10km (assume a
sperical asteroid :-) ). etc.


Thanks! I found a nice page last night that give me some good general
information about asteriod impacts. Between that and your information I'm
starting to get a feel for it. I'm still hoping someone on here might be
able to point out one that is of the right sort of size and close to Earth
at the end of October 2002.


E. E. Doc Smith was way ahead of you. His coup de grace was to obtain a
planet from a parallel universe where the speed of light was much higher
than in our universe. They would then fire the superluminal planet
through a hyperspacial tube at the nasty alien's planet. Another
variation was to use a similar scheme but using antimatter planets as the
projectiles.

Llanzlan.

Sweet. I don't think we can manage this one though as the GM would rule
that cross universe is transdimensional which we can't do (but the Gribbles
can). We can do wormholes within our own universe though (though difficulty
increases with distance).

From what I remember isn't Anti-matter and Matter horribly reactive?
doesn't it make Nukes look tame?

"Llanzlan Klazmon The 15th" wrote in message
7.6...
"John Smith" wrote in
:

The impact speed could be anywhere between 10 and 70 km/sec. If you took
a stab at 50 km/sec and remember that kinetic energy = 1/2 mv^2. To get
the mass assume an asteroid density about the same as rock and calculate
the volume of the asteroid based on a diameter of say 10km (assume a
sperical asteroid :-) ). etc.


Thanks! I found a nice page last night that give me some good general
information about asteriod impacts. Between that and your information I'm
starting to get a feel for it. I'm still hoping someone on here might be
able to point out one that is of the right sort of size and close to Earth
at the end of October 2002.


E. E. Doc Smith was way ahead of you. His coup de grace was to obtain a
planet from a parallel universe where the speed of light was much higher
than in our universe. They would then fire the superluminal planet
through a hyperspacial tube at the nasty alien's planet. Another
variation was to use a similar scheme but using antimatter planets as the
projectiles.

Llanzlan.

Sweet. I don't think we can manage this one though as the GM would rule
that cross universe is transdimensional which we can't do (but the Gribbles
can). We can do wormholes within our own universe though (though difficulty
increases with distance).

From what I remember isn't Anti-matter and Matter horribly reactive?
doesn't it make Nukes look tame?

The Gray Lensman!

"Llanzlan Klazmon The 15th" wrote in message
7.6...
"John Smith" wrote in
:

I have a few astronomy questions I need answering in order to help
with a hypothetical problem.

I need to know the closest place (to the Earth) I can get hold of an
asteroid of around the size (6-12km across depending on your source)
of the one that did for the Dinosaurs, and roughly how fast it's
likely to be travelling? How does such an impact compare to a Nuke?
I know it's much bigger, but roughly how much?

I've already found one information source that helps:

http://cfa-www.harvard.edu/iau/lists/Closest.html

This helps a little with the distance (I can convert AU's), but I'm
having trouble with the size values as it's all new to me. Plus I
still have no idea of what sort of speed it might impact at.


The impact speed could be anywhere between 10 and 70 km/sec. If you took
a stab at 50 km/sec and remember that kinetic energy = 1/2 mv^2. To get
the mass assume an asteroid density about the same as rock and calculate
the volume of the asteroid based on a diameter of say 10km (assume a
sperical asteroid :-) ). etc.


Why do I want all this? Well, it's to help fight off an alien
invasion in a role-playing game (love'em or hate'em). The Gribbles
(aliens) have opened a trans-dimensional rift in Sydney (why couldn't
they trash somewhere ****ty like Alice Springs?) from their world to
ours and are intent on wiping us out and taking over the Earth. So
far the Humans are being creamed.

Anyway, things look pretty grim for us and the world in general, but
luckily we have a Cunning Plan that should see off the Gribbles and
annoy the Gamesmaster at the same time (always a bonus). One of our
party is a bit of the mad scientist type and he can build for us a
wormhole device which we can then use to move things and people from
place to place. If we build it powerful enough then we could use it
to open said wormhole infront of a suitable asteroid, let it cruise
through and pop out the other side of the wormhole, handily infront of
the Dimensional Rift! (I cannot wormhole it directly, I have to send
it through the Rift)

E. E. Doc Smith was way ahead of you. His coup de grace was to obtain a
planet from a parallel universe where the speed of light was much higher
than in our universe. They would then fire the superluminal planet
through a hyperspacial tube at the nasty alien's planet. Another
variation was to use a similar scheme but using antimatter planets as the
projectiles.

Llanzlan.


SNIP

The Gray Lensman!

"Llanzlan Klazmon The 15th" wrote in message
7.6...
"John Smith" wrote in
:

I have a few astronomy questions I need answering in order to help
with a hypothetical problem.

I need to know the closest place (to the Earth) I can get hold of an
asteroid of around the size (6-12km across depending on your source)
of the one that did for the Dinosaurs, and roughly how fast it's
likely to be travelling? How does such an impact compare to a Nuke?
I know it's much bigger, but roughly how much?

I've already found one information source that helps:

http://cfa-www.harvard.edu/iau/lists/Closest.html

This helps a little with the distance (I can convert AU's), but I'm
having trouble with the size values as it's all new to me. Plus I
still have no idea of what sort of speed it might impact at.


The impact speed could be anywhere between 10 and 70 km/sec. If you took
a stab at 50 km/sec and remember that kinetic energy = 1/2 mv^2. To get
the mass assume an asteroid density about the same as rock and calculate
the volume of the asteroid based on a diameter of say 10km (assume a
sperical asteroid :-) ). etc.


Why do I want all this? Well, it's to help fight off an alien
invasion in a role-playing game (love'em or hate'em). The Gribbles
(aliens) have opened a trans-dimensional rift in Sydney (why couldn't
they trash somewhere ****ty like Alice Springs?) from their world to
ours and are intent on wiping us out and taking over the Earth. So
far the Humans are being creamed.

Anyway, things look pretty grim for us and the world in general, but
luckily we have a Cunning Plan that should see off the Gribbles and
annoy the Gamesmaster at the same time (always a bonus). One of our
party is a bit of the mad scientist type and he can build for us a
wormhole device which we can then use to move things and people from
place to place. If we build it powerful enough then we could use it
to open said wormhole infront of a suitable asteroid, let it cruise
through and pop out the other side of the wormhole, handily infront of
the Dimensional Rift! (I cannot wormhole it directly, I have to send
it through the Rift)

E. E. Doc Smith was way ahead of you. His coup de grace was to obtain a
planet from a parallel universe where the speed of light was much higher
than in our universe. They would then fire the superluminal planet
through a hyperspacial tube at the nasty alien's planet. Another
variation was to use a similar scheme but using antimatter planets as the
projectiles.

Llanzlan.


SNIP

"Greg Neill" wrote in message...
. ..
. . .
Thwwwwfooop!

The "f" is a really nice touch! g

--
happy days and...
starry starry nights!

Painius

"Greg Neill" wrote in message...
. ..
. . .
Thwwwwfooop!

The "f" is a really nice touch! g

--
happy days and...
starry starry nights!

Painius