[FT] Vector Move question

> From reading the rules it looked like this was legal, however, it

Ship has accel of 8, moving at 11 inches in the same direction it is facing.

Aft Push 3 rotate 6. Thrust 8.

End result, ship has stopped, giving a deceleration of 11!. You could do the
same thing with accel.

Thrust 8 rotate 6 aft push 3

I do not have the book in front of me, but it seems that according to the FB,
you can only apply one kind of order using the maneuvering thrusters.
Therefore, you can not specify a rotation and a push in the same turn.

JP

> ----------

On 30-Jul-99 at 16:21, Jean-Pierre Fiset (Jean.Pierre.Fiset@entrust.com)
wrote:
> I do not have the book in front of me, but it seems that according to

No, you can only do one of each particular type. You can decel and
turn.  However, you cannot turn, accel, _turn_, and push.

Roger said:
> From reading the rules it looked like this was legal, however, it

According to the printed rules, it's legal. However, it is also Exceptionally
Cheesy. Sometime this weekend, God willing, I'll put up quite a bit of stuff
on my angelfire site, including Jared Noble's revised movement sequence, which
addresses this. The quick fix, however, is simply to say that a Thrust and a
Push may not be separated by a Rotate. Therefore you may, for example, Push
Port 2, Thrust 6, and then Rotate Port; but you may not Push Port 2, Rotate
Port 3, and the Thrust 6.

> Jean-Pierre Fiset wrote:

> I do not have the book in front of me, but it seems that according to

Quoting FB p. 3, "Combining manoeuvers": "If desired, a ship may combine both
ROTATION and PUSH uses of its manoeuvring thrusters in a single game turn, but
no more than ONE of each..."

> Therefore, you can not specify a rotation and a push in the same

Yes, you can.

This ver topic was discussed some months ago; it should be in the archives.

Regards,

> Aft Push 3

..except that you cannot combine rotations and pushes in the same turn
(FB p3).

> Aft Push 3

Schoon muttered:
> ..except that you cannot combine rotations and pushes in the same turn

I believe that if you look back at the archives from the last time we hashed
this out, you'll find that St.^3 Jon said his intention was that you could
have up to 1 rotation and 1 push per turn, but not more than one each (so you
can't, for example, turn port 3, thrust 4, then turn starboard 3).

If someone can forward me Jared's current address, (or forward this message to
Jared), I'd like to get his permission to post on my website his modified
maneuver rule for vector thrust.

> Schoon wrote:

> >Aft Push 3

FB p3 says: "COMBINING MANOEUVRES If desired, a ship may combine both ROTATION
and PUSH uses of its manoeuvring thrusters in a single game turn,..."

I'm not entirely sure how this stops you from combining rotations and
pushes in the same turn... Elaborate, please? ;-)

Regards,

G'day guys,

Without wanting to go through all of that again, I feel obliged to
say....

> According to the printed rules, it's legal. However, it is also

Hey I wouldn't say that! You guys got your double screens, strong hulls,
armour and even stealth (!!) I've got my good old FSE thrust... I'll now
PS2TS3MD6 and get the heck out of here before you all kick my butt for
dissenting;)

Cheers

Beth

> Without wanting to go through all of that again, I feel obliged to

Beth responded
> Hey I wouldn't say that! You guys got your double screens, strong

Elementary Physics Lesson #1: You Can't Outrun a Laser.

> Laserlight wrote:

> Elementary Physics Lesson #1: You Can't Outrun a Laser.

     There you go, letting reality mess up a good sci-fi concept.

:-)

Bye for now,

> John L and Laserlight wrote:

> On Sun, 1 Aug 1999, Laserlight wrote:

> >Without wanting to go through all of that again, I feel obliged to

Advanced Physics Lesson #1: Oh Yes You Can

the trick is to make sure the laser is going through a highly cunning medium
...

--- begin quote ---
source: Nature 397, 559 - 560 (1999)
title: Slow light in cool atoms author: Jon Marangos copyright: Macmillan
Publishers Ltd. 1999

An experiment with atoms at nanokelvin temperatures has produced the
remarkable observation of light pulses travelling at velocities of only 17
m s-1. The large optical nonlinearities seen in this system may open up
new opportunities in quantum optics.

In our usual understanding, the speed of light, c, is the absolute top
speed in the Universe at 3 108 m s-1 in a vacuum. So observation of
light pulses propagating at a speed no faster than a swiftly moving bicycle,
described by Hau et al.1 on page 594 of this issue, comes as a surprise. We
know that light can be slowed to a modest extent in refractive and transparent
media, for example water and glass, to velocities typically a
factor of 1.5-2.0 times slower than c. But there is a limit to how much
light can be slowed in normal optical materials, because the larger refractive
index associated with slower propagation is inevitably accompanied by
increased light absorption.

Under special circumstances, however, this limit can be overcome -- that
is, a perfectly transparent medium can be created in which the speed of
light is slowed enormously. The systems in question are laser-dressed
atomic media that acquire new optical properties because light does not
interact directly with atoms but with a system composed of atoms plus
laser field. This requires the preparation of laser-dressed atoms (see
box for the technical details) to create what is termed electromagnetically
induced transparency, in which quantum interference leads to the cancellation
of absorption2. In this new kind of system, the dispersive
(or refractive) properties of the medium -- including the velocity of
propagation of an optical pulse -- become independent of absorption3.
For example, Steve Harris and colleagues4 at Stanford have used coherently
prepared lead atoms to reduce the propagation velocity of a resonantly
tuned light pulse to c/165. To achieve even slower pulse velocities,
cold atoms are required because, to maximize the quantum interference effect,
the thermal motion must be small.

--- end quote ---

lifting copyrighted text from a journal is somewhat dodgy, but i believe this
qualifies as fair use.

tom

ps i know neither of these were lesson #1; we really should put together a
GZG-L Physics Primer at some point :)

From: Tom Anderson <thomas.anderson@university-college.oxford.ac.uk>

> Elementary Physics Lesson #1: You Can't Outrun a Laser.

And Postgraduate Physics Lesson #1: Jump to Hyperspace, Frank!

(snip really fascinating article)

This brings to mind that I've heard of a mirror which will bounce a laser
back in the direction it came from, regardless of the angle--I thought
it was a "cognate mirror" but search engines don't seem to find it by that
name so I may been mistaken. Does anyone know the location of a basic article
on this? (Obligatory dragging in a topic: maybe this would make good PSB for a
Reflex Field?)

Tom also suggested a Full Thrust Physics Primer, which I will happily host on
my site under the name "Physics for Space Cadets". Anyone who wishes to
contribute an article is welcome--I already have the basic equations for
linear acceleration and such, but I don't mind posting different viewpoints of
the same topic.

> Laserlight wrote: