Re: Smith and Jones science (Was: Doctor Who progressive or interlaced?)


"Astrobiochemist" <CCSBeyond@xxxxxxxxx> wrote in message news:1175802538.445212.126220@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Actually, the most power magnetic fields created on earth, within an
> order of magnitude of the field strength mentioned in the episode, are
> extremely destructive. Such magnets are basically one shot devices
> which has to be rebuilt to be used again. So, the MRI should destroy
> itself when it creates the field.

> But why is the MRI able to survive long enough to build up to 50
> kiloTeslas before destroying itself? Well, the plasmavore does say

The 50 kT has to be the filed measured at every point on the Earths surface
in order to fry peoples brains out. How does she intend to create a field on
the moon and project it to the Earth, every point of the Earth at that level
with an MRI scanner which only produces magnetic fileds internally and with
a very limited range. If the MRI scanner blows up instantly that's the end
of any notion of scanning the filed across the Earth, like with a video
recorder (which produces a strong magnetic field but with little range so
has to be in almost direct contact with the tape to record), and in any case
where is the power going to come from and how is she projecting this filed
to the Earth?

She's creating the large field through the act of blowing up her
transducer (in her case, an MRI) which is how extremely powerful
magnetic fields are created on Earth. She will need to use an
extremely powerful energy source to do this but the Doctor can see the
early effects of her modifications to the MRI so she obviously has
one.

She might be creating a magnetic filed but it will only be one of a very, very, very, limited range just like the ones generated on Earth. It is not going to harm anyone in the hospital unless they are lying inside the MRI scanner let alone anyone on Earth.


> that she has modified it. She could be using very small forcefields
> to keep the MRI from ripping itself apart long enough to get to 50
> kTs.

Oh right, so she is now using force fields. And how are these force fields
being produced and by what?

By her alien devices. She says she has modified the MRI so we know

Where are these alien devices? How come there were no sconces showing them

she has some method of doing so and as an alien, she can have alien
devices with her. If you want the show to be more specific than that,

What we need to know is how this magnetic filed is going to reach the Earth. Right now its totally contained in the MRI scanner and not sufficiently powerful enough to do any harm to anyone unless they are positioned very close to it.

then then show will have to start explaing things like how
regeneration works, or the TARDIS forcefield works or how the TARDSI
travels in time in great detail and no one expects them to do that.

Because its been done already.


> But in so far as the story goes, how she makes the MRI create such a
> powerful field is not as important as the fact that she does and the

Yes it is. This is a science fiction show and has to be believably
explained.

She explains it well enough for the show, a series aimed at more than

No she does not. She does not explain anything at all and not does anyone else.

just the niche of science fiction nerds but a general audience at
large.

In which case there must be scientific explanations of how things work and why they are going to harm people, because the ordinary members for the audience who have passed their GCSE in magnetism and even those who have not know perfectly well the when picking up something up a magnet and then moving it away the force drops off very quickly. It is a short range force so how is a 50 kT field generated inside a magnetically shielded MRI scanner in a very tiny space going to reach the Earth at sufficient intensity to kill people? And what the hell is it being powered by anyway?


> Doctor has to stop it, which also is not dependent on how she keeps
> the MRI in one piece or where gets the power to keep it running.

> Most modern science fiction writers will agree that it's not
> mentioning what device powers the magnetic field that would make the
> show science fiction,

Yes is bloody well is.

>it's using an atmosphere (in the metaphorical,
> not the literal sense) of science (in this case, aliens, being
> transported on the moon) that makes the show science fiction.

CARP!

So, you say you know more about writing good science fiction than Rod
Serling, Theodore Sturgeon, Barry N. Malzberg, James Blish,
Christopher Evans, Robert Scholes, Edmund Crispin, John W. Campbell
and Robert A. Heinlein. Well, then you should publish your fantastic
science fiction story so you can show everybody how to do it right.


In the words of Jesus Christ, seeing as its Good Friday. It is you that say that.



.

Relevant Pages

  • Re: Smith and Jones science (Was: Doctor Who progressive or interlaced?)
    ... Such magnets are basically one shot devices ... So, the MRI should destroy ... the moon and project it to the Earth, every point of the Earth at that level ... This is a science fiction show and has to be believably ...
    (rec.arts.drwho)
  • Re: Smith and Jones science (Was: Doctor Who progressive or interlaced?)
    ... > early effects of her modifications to the MRI so she obviously has ... very, very, limited range just like the ones generated on Earth. ... The MRI scanner has shielding and probably has focusing devices like the pieces of metal you put on the end of magnets to concentrate the field in one area. ... >>> transported on the moon) that makes the show science fiction. ...
    (rec.arts.drwho)
  • Re: Smith and Jones science (Was: Doctor Who progressive or interlaced?)
    ... >>> early effects of her modifications to the MRI so she obviously has ... >> very, very, limited range just like the ones generated on Earth. ... The MRI scanner has shielding and probably has focusing devices like the ... pieces of metal you put on the end of magnets to concentrate the field in ...
    (rec.arts.drwho)
  • Re: Smith and Jones science (Was: Doctor Who progressive or interlaced?)
    ... early effects of her modifications to the MRI so she obviously has ... very, very, limited range just like the ones generated on Earth. ... pieces of metal you put on the end of magnets to concentrate the field in ... transported on the moon) that makes the show science fiction. ...
    (rec.arts.drwho)
  • Re: OT: Read this online... anyone have details
    ... >> flat earth idea. ... When you increase the temperature of any magnet the magnets ... I have known, unfortunately, several people with cancer. ...
    (comp.sys.mac.advocacy)
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