| Topic: |
Science > Physics |
| User: |
"Diana" |
| Date: |
09 Jan 2007 06:31:03 AM |
| Object: |
Flying Saucers |
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
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| User: "G=EMC^2 Glazier" |
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| Title: Re: Flying Saucers |
11 Jan 2007 06:35:43 AM |
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Diana Ball shaped is the best shape. Our space ship Earth proves that.
Living inside a big ball gives you maximum room in all directions. It
is symmetrical, Fact is Diana when people see a alien flying saucer
they are in reality looking at the bottom of a sphere's,curve Bert
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| User: "brad" |
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| Title: Re: Flying Saucers |
10 Jan 2007 12:49:56 PM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or discs
only to allow movement in any direction inside the atmosphere. but look
at the size of the universe and then ask yourself what the probability
is that vehicles from some other planet are coming here. or to put it
another way ; what about our system stands out and would draw the
attention of another civilization. if you mention radio broadcasts then
you limit your available stars according to the speed of light and
there is nothing to our eyes that makes those stars stand out as
centers of civilization. that is , they are not broadcasting (
apparently) . this does not preclude the existance of life elsewhere
just the likelihood that they are visiting us . the galaxy is just too
big and our sun is like a sand grain on a beach. brad
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| User: "Sam Wormley" |
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| Title: Re: Flying Saucers |
10 Jan 2007 01:04:26 PM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Laws of physics render fast* space travel impossible and there
is no credible evidence supporting alien space craft (UFOs).
There is no evidence... only peoples' stories and imaginations.
*anything close to the speed of light
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| User: "malibu" |
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| Title: Re: Flying Saucers |
10 Jan 2007 02:28:35 PM |
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Sam Wormley wrote:
Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Laws of physics render fast* space travel impossible and there
is no credible evidence supporting alien space craft (UFOs).
There is no evidence... only peoples' stories and imaginations.
*anything close to the speed of light
There is absolutely tons of evidence.
John
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| User: "PD" |
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| Title: Re: Flying Saucers |
10 Jan 2007 02:38:25 PM |
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On Jan 10, 2:28 pm, "malibu" <vega...@accesscomm.ca> wrote:
Sam Wormley wrote:
Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Laws of physics render fast* space travel impossible and there
is no credible evidence supporting alien space craft (UFOs).
There is no evidence... only peoples' stories and imaginations.
*anything close to the speed of light
There is absolutely tons of evidence.
John
Sounds like talking at crossed purposes to me.
Sam is saying (I'm guessing) that there is no demonstration that fast
space travel is plausibly achievable, nor any hypothetically proposed
mechanism that says it is plausibly achievable.
John is saying (I'm guessing) that there is phenomenological evidence
of something moving that fast, regardless of whether we know how that
is plausibly achieved.
People of Sam's ilk are skeptical of attributing that phenomenological
evidence to something really moving that fast, and are more likely to
attribute the observation to something else going on.
People of John's ilk are more eager to attribute such evidence to more
exotic explanations, and are less moved by a need for a demonstration
of plausibility.
Chalk it up to the confrontation between a skeptical realist and a
romantic dreamer.
PD
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| User: "" |
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| Title: Re: Flying Saucers |
11 Jan 2007 12:29:23 AM |
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Sam Wormley wrote:
Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Laws of physics render fast* space travel impossible and there
is no credible evidence supporting alien space craft (UFOs).
There is no evidence... only peoples' stories and imaginations.
Nonsense.
SOVIET MILITARY FOOTAGE
http://video.google.com/videoplay?docid=-4468185100897567649
http://video.google.com/videoplay?docid=446646930560765822
http://video.google.com/videoplay?docid=-6489758600806134101
http://video.google.com/videoplay?docid=-5210326345538570434
The Martin Stubbs NASA footage is by far the most extensive, accurate
and clear record of observed UFO phenomenon straight out of NASA. It
occasionally pops on Google Video once in a while, but it always gets
removed. A web search may show various other sites with download links
to it.
*anything close to the speed of light
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| User: "" |
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| Title: Re: Flying Saucers |
11 Jan 2007 07:59:20 AM |
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wrote:
Sam Wormley wrote:
Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Laws of physics render fast* space travel impossible and there
is no credible evidence supporting alien space craft (UFOs).
There is no evidence... only peoples' stories and imaginations.
Nonsense.
SOVIET MILITARY FOOTAGE
http://video.google.com/videoplay?docid=-4468185100897567649
http://video.google.com/videoplay?docid=446646930560765822
http://video.google.com/videoplay?docid=-6489758600806134101
http://video.google.com/videoplay?docid=-5210326345538570434
NASA UFO FOOTAGE
UFO Activity around earth
http://www.youtube.com/watch?v=SXWrP8mItgI&mode=related
Tether STS-75 like UFO's filmed in the UK
http://www.youtube.com/watch?v=gUCHTTrLg6w&mode=related
UFO secret nasa project
http://www.youtube.com/watch?v=OC7zw8aemlg&mode=related
UFO NASA's unexplained tether overload incident
http://www.youtube.com/watch?v=As-wYmFYb3I&mode=related
The Martin Stubbs NASA footage is by far the most extensive, accurate
and clear record of observed UFO phenomenon straight out of NASA. It
occasionally pops on Google Video once in a while, but it always gets
removed. A web search may show various other sites with download links
to it.
*anything close to the speed of light
.
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| User: "Sam Wormley" |
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| Title: Re: Flying Saucers |
09 Jan 2007 08:54:38 AM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Reliable information: http://www.csicop.org/cgi-bin/search/search.cgi?q=UFO
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| User: "The_Man" |
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| Title: Re: Flying Saucers |
12 Jan 2007 11:07:38 AM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Actually, everyone knows that earliest "sightings" of UFOs insisted
that they were cigar- shaped. So the most likely shape for a UFO is a
penis, even if Freud was right, and sometimes a cigar REALLY IS just a
cigar.
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| User: "Mike" |
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| Title: Re: Flying Saucers |
09 Jan 2007 08:42:23 AM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
They come in all shapes depending on the skills of those who can fake
the videos and photos. A disk shape is the easiest image you can fake
as a UFO.
Mike
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| User: "" |
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| Title: Re: Flying Saucers |
11 Jan 2007 12:07:47 AM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Unfortunately, the UFO phenomenon is plagued with deliberate
disinformation originating from the military, hoaxes originating from
profiteers, pranksters and the mentally disturbed and a whole bunch of
misinterpreted natural phenomenon. That being said there is very large
(but a minority) of observational evidence which clearly shows a
legitamit UFO phenomenon.
The best evidence comes from the 40's, 50's and early 60's when photo
manipulation was impossible. There is also more recent evidence,
originating from the NASA shuttle footage and declassified Soviety
military footage, which _clearly_ show disk, cylindrical and triangular
shaped objects accelerating and moving in ways which cannot be
accounted for with modern physics.
Most people in the scientific community will not even look at the UFO
evidence for emotional reasons (fear of ridicule) and because it means
that fundamental aspects of nature are not understood properly.
There is also a _massive_ disinformation campaign being waged by a
certain group(s) trying to make the UFO issue a "crackpot" issue. Most
"on-the-shelf" UFO videos, public UFO researchers and others major UFO
institutions are part of the deception or have been consumed by it.
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| User: "The Rocket Scientist" |
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| Title: Re: Flying Saucers |
11 Jan 2007 01:45:45 PM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Yes. They are all built from the General Products Company's Standard
Hull #2. The #3 is actually a better hull for interstellar travel, but
the #2 is substantially less expensive and volume discounts are
available.
Bill Sullivan
"If you kill enough of them, they stop fighting." - Curtis E. Lemay
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| User: "malibu" |
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| Title: Re: Flying Saucers |
09 Jan 2007 08:05:40 AM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Yes. My physics.
The Galaxy Model for the Atom.
http://users.accesscomm.ca/john
Atoms and galaxies are the same thing.
Galaxies are discs only in the (for them) short
term; their disc precesses to sweep out a sphere,
which is why spirals have a warp out of the disc plane in
opposite directions on 2 opposite edges.
Atoms are spheres only in the (for them) long term;
their spheres are formed from very rapidly-precessing
discs.
This is significant because of the way atoms absorb
gravity; along their axis of precession. When atoms are
randomly precessing they absorb gravity from all
directions. If you construct a spinning field of the right
*frequency* you can re-orientate their precessions all
in the same axis. Then they will absorb gravity only
along this axis. If one end of the axis is blocked from
receiving as much gravitational energy as the other by a
large body in space, this axis will receive
unequal impetus and your field will be impelled in
one direction.
Therefore you make your craft circular about this axis;
either tube shaped or disc shaped (think coin or
stack of coins).
John
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| User: "PD" |
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| Title: Re: Flying Saucers |
09 Jan 2007 08:29:37 AM |
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On Jan 9, 8:05 am, "malibu" <vega...@accesscomm.ca> wrote:
Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Yes. My physics.
John confuses what he does with doing physics.
What John does is more a cross between crystal worshiping and geometric
art than anything.
Making art with atoms as a subject is, however, no more physics than a
symphony about trees is botany.
PD
The Galaxy Model for the Atom.http://users.accesscomm.ca/john
Atoms and galaxies are the same thing.
Galaxies are discs only in the (for them) short
term; their disc precesses to sweep out a sphere,
which is why spirals have a warp out of the disc plane in
opposite directions on 2 opposite edges.
Atoms are spheres only in the (for them) long term;
their spheres are formed from very rapidly-precessing
discs.
This is significant because of the way atoms absorb
gravity; along their axis of precession. When atoms are
randomly precessing they absorb gravity from all
directions. If you construct a spinning field of the right
*frequency* you can re-orientate their precessions all
in the same axis. Then they will absorb gravity only
along this axis. If one end of the axis is blocked from
receiving as much gravitational energy as the other by a
large body in space, this axis will receive
unequal impetus and your field will be impelled in
one direction.
Therefore you make your craft circular about this axis;
either tube shaped or disc shaped (think coin or
stack of coins).
John
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| User: "boson boss" |
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| Title: Re: Flying Saucers |
09 Jan 2007 07:33:17 AM |
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Diana wrote:
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
http://freestyledisc.org/gallery/displayimage.php?pos=-1705
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| User: "Diana" |
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| Title: Re: Flying Saucers |
11 Jan 2007 01:03:38 AM |
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I'll try to be more precise,
What I wanted to know was, is there any benefit for a spacecraft to have
shape like saucer, when traveling within atomosphere of a planet or in deep
space
"Diana" <iamhello99@yahoo.com> wrote in message
news:bWLoh.45779$Nb2.871549@news1.nokia.com...
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
.
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| User: "malibu" |
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| Title: Re: Flying Saucers |
11 Jan 2007 07:41:12 AM |
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Diana wrote:
I'll try to be more precise,
What I wanted to know was, is there any benefit for a spacecraft to have
shape like saucer, when traveling within atomosphere of a planet or in deep
space
"Diana" <iamhello99@yahoo.com> wrote in message
news:bWLoh.45779$Nb2.871549@news1.nokia.com...
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Hi Diana
They operate by means of a spinning magnetic field.
This field imitates the movement of electrons- actually the
whole atomic disc- in order to cause all the atomic discs
to be parallel at all times within the influence of the field.
It is like a venetian blind at any one instant, but the blind
spins around an axis, so at 90 degrees everything is edge-on
to you and at 180 degrees face-on. Spin a coin on a table
and see how it blurs so you can see right through it.
Parts of the disc itself spin like a frisbee so to
gyroscopically stabilize it and keep the axis of
magnetic spin where they want it- because this is where
gravity most affects it, along this axis. Then one end
is pointed towards a gravitational source (sink, actually),
and the other end has less 'pull' (more push, actually),
and your saucer moves.
The disc shape has a lot of gyroscopic stability, and
in an atmosphere it will glide nicely on the air like
a frisbee. In space the larger ships are tube-shaped
or cigar-shaped (look at George Adamski's thousands
of pictures, many taken by telescope out close to the moon).
Probably the most important thing is to have a
circular cross-section so the field evenly affects
the whole ship and slight skewing can result
in good control.
See my page on how atoms are like galactic discs
at any one instant:
http://users.accesscomm.ca/john/
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| User: "" |
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| Title: Re: Flying Saucers |
11 Jan 2007 08:11:40 AM |
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malibu wrote:
Diana wrote:
I'll try to be more precise,
What I wanted to know was, is there any benefit for a spacecraft to have
shape like saucer, when traveling within atomosphere of a planet or in deep
space
"Diana" <iamhello99@yahoo.com> wrote in message
news:bWLoh.45779$Nb2.871549@news1.nokia.com...
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Hi Diana
They operate by means of a spinning magnetic field.
This field imitates the movement of electrons- actually the
whole atomic disc- in order to cause all the atomic discs
to be parallel at all times within the influence of the field.
It is like a venetian blind at any one instant, but the blind
spins around an axis, so at 90 degrees everything is edge-on
to you and at 180 degrees face-on. Spin a coin on a table
and see how it blurs so you can see right through it.
Parts of the disc itself spin like a frisbee so to
gyroscopically stabilize it and keep the axis of
magnetic spin where they want it- because this is where
gravity most affects it, along this axis. Then one end
is pointed towards a gravitational source (sink, actually),
and the other end has less 'pull' (more push, actually),
and your saucer moves.
The disc shape has a lot of gyroscopic stability, and
in an atmosphere it will glide nicely on the air like
a frisbee. In space the larger ships are tube-shaped
or cigar-shaped (look at George Adamski's thousands
of pictures, many taken by telescope out close to the moon).
Probably the most important thing is to have a
circular cross-section so the field evenly affects
the whole ship and slight skewing can result
in good control.
See my page on how atoms are like galactic discs
at any one instant:
Your post is an example of disinformation. You don't even know what
UFOs are and yet you deem fit to make assertions on the physics of
UFOs. It's pretty obvious that "UFO physics" transcends naive notions
of "spinning magnetic fields" or anything else in the physics arsenal.
For all we know, UFOs may turn out to be mere primitive life-forms
which live in space (i.e. space bugs). Maybe it's classified human
technology. Or maybe, they are alien spacecraft.
Point is, you don't know what you don't know and it doesn't help to
pollute UFO discussion with speculation.
http://users.accesscomm.ca/john/
.
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| User: "malibu" |
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| Title: Re: Flying Saucers |
11 Jan 2007 09:57:52 AM |
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wrote:
malibu wrote:
Diana wrote:
I'll try to be more precise,
What I wanted to know was, is there any benefit for a spacecraft to have
shape like saucer, when traveling within atomosphere of a planet or in deep
space
"Diana" <iamhello99@yahoo.com> wrote in message
news:bWLoh.45779$Nb2.871549@news1.nokia.com...
Hi All,
is there any physics that UFO space ship shapped as saucers only,
or disks ,
Hi Diana
They operate by means of a spinning magnetic field.
This field imitates the movement of electrons- actually the
whole atomic disc- in order to cause all the atomic discs
to be parallel at all times within the influence of the field.
It is like a venetian blind at any one instant, but the blind
spins around an axis, so at 90 degrees everything is edge-on
to you and at 180 degrees face-on. Spin a coin on a table
and see how it blurs so you can see right through it.
Parts of the disc itself spin like a frisbee so to
gyroscopically stabilize it and keep the axis of
magnetic spin where they want it- because this is where
gravity most affects it, along this axis. Then one end
is pointed towards a gravitational source (sink, actually),
and the other end has less 'pull' (more push, actually),
and your saucer moves.
The disc shape has a lot of gyroscopic stability, and
in an atmosphere it will glide nicely on the air like
a frisbee. In space the larger ships are tube-shaped
or cigar-shaped (look at George Adamski's thousands
of pictures, many taken by telescope out close to the moon).
Probably the most important thing is to have a
circular cross-section so the field evenly affects
the whole ship and slight skewing can result
in good control.
See my page on how atoms are like galactic discs
at any one instant:
Your post is an example of disinformation. You don't even know what
UFOs are and yet you deem fit to make assertions on the physics of
UFOs. It's pretty obvious that "UFO physics" transcends naive notions
of "spinning magnetic fields" or anything else in the physics arsenal.
For all we know, UFOs may turn out to be mere primitive life-forms
which live in space (i.e. space bugs). Maybe it's classified human
technology. Or maybe, they are alien spacecraft.
Point is, you don't know what you don't know and it doesn't help to
pollute UFO discussion with speculation.
http://users.accesscomm.ca/john/
Well, nobody doesn't know what they don't know.
But if you have enough observations to hand, you can draw
some fairly good deductions.
As you know, the physics arsenal consists of some bows
and arrows, and the arrows don't
always fly right (1 out of 50 dies).
Our physics is 100 years old.
There is very good evidence, rock solid in fact, that
human beings from space have been delivering the
exact same message to Earth for 20,000 years.
So, suck it up, Buttercup.
John
PS And I sent you that
nice e-mail, you Jezebel!
:-)
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| User: "Sam Wormley" |
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| Title: Re: Flying Saucers |
11 Jan 2007 09:15:20 AM |
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Diana wrote:
I'll try to be more precise,
What I wanted to know was, is there any benefit for a spacecraft to have
shape like saucer, when traveling within atomosphere of a planet or in deep
space
Diana--To help answer your question, look at the designs of
space capsules, space shuttle, LEM, and various probes to
other planets, comets and asteroids. Notice the differences--
each was designed for a specific reason. Many have to deal
with high temperature plasma... others with high radiation,
and so on.
.
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| User: "boson boss" |
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| Title: Re: Flying Saucers, Arrows and stability |
11 Jan 2007 01:27:21 PM |
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Someone posted this link:
http://video.google.com/videoplay?docid=-508428482961312148
How can we find out what are we seeing here?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Also on another issue that was mentioned - stability of axis that is
spinning and so forth.
I watched one show on national geographic about design of weapons and
heard amazing thing about arrows. It says that the arrow has contained
elastic energy in form of oscillation of the middle section while the
tip and tail are aligned. When it reaches the target that gives an
additional kick for penetrating the target. Comments?
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| User: "mika" |
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| Title: Re: Flying Saucers, Arrows and stability |
11 Jan 2007 02:02:18 PM |
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boson boss wrote:
Also on another issue that was mentioned - stability of axis that is
spinning and so forth.
I watched one show on national geographic about design of weapons and
heard amazing thing about arrows. It says that the arrow has contained
elastic energy in form of oscillation of the middle section while the
tip and tail are aligned. When it reaches the target that gives an
additional kick for penetrating the target. Comments?
I don't think you remember correctly what you heard on the show. The
potential energy contained in the bow is transferred to the arrow when
the arrow is released. Some of that energy is used up to propel the
arrow from one place to another. Some of the energy is *wasted* due to
oscillation. The remainder of the energy is used up on impact. I don't
understand how oscillation can store energy. The movement dissipates
energy just like sound waves dissipate energy on impact. The (ideal)
perfectly straight arrow that moves axially only would transfer the
most energy between release and impact. (axially - in the direction of
the shaft, as opposed to radially - directed out from the centerline of
the shaft like spokes on a wheel. The oscillations are caused by
radial movement, thus, more oscillations mean more energy wasted).
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| User: "boson boss" |
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| Title: Re: Flying Saucers, Arrows and stability |
11 Jan 2007 04:12:21 PM |
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mika wrote:
boson boss wrote:
Also on another issue that was mentioned - stability of axis that is
spinning and so forth.
I watched one show on national geographic about design of weapons and
heard amazing thing about arrows. It says that the arrow has contained
elastic energy in form of oscillation of the middle section while the
tip and tail are aligned. When it reaches the target that gives an
additional kick for penetrating the target. Comments?
I don't think you remember correctly what you heard on the show. The
potential energy contained in the bow is transferred to the arrow when
the arrow is released. Some of that energy is used up to propel the
arrow from one place to another. Some of the energy is *wasted* due to
oscillation. The remainder of the energy is used up on impact. I don't
understand how oscillation can store energy. The movement dissipates
energy just like sound waves dissipate energy on impact. The (ideal)
perfectly straight arrow that moves axially only would transfer the
most energy between release and impact. (axially - in the direction of
the shaft, as opposed to radially - directed out from the centerline of
the shaft like spokes on a wheel. The oscillations are caused by
radial movement, thus, more oscillations mean more energy wasted).
No. You see the oscillation is certainly stored energy and this is
almost a closed system, *that* meaning almost non-dissipative. The
dissipation occurs from the air friction left right up down from the
middle - when measured as diminishing the component of midsection
oscillation. The frontal dissipation occurs from friction straight
ahead and in this respect the straight forward motion is held with the
rotation of the arrow (propelled again via airdynamics of the fins on
the tail). The bullet and frisbee have this sort of stability due to
rotation. At impact the elastic oscillation is being conducted as
energy up the both ends.
Now the curious thing begins. We know that one half of the force
originating from oscillation will hit the board and one half will be
the reactive force. In other words consider that the arrow will
straighten itself to the left and to the right. Say that it hits the
target on the left side. On the right end it will also stretch out -
but little more.
Additionally it will dissipate some more energy on the right since the
left end will be fixated and right end will be oscillating even more
into mid-air.
But what are the actual left-right proportions (equations)?
As for the spaceships which seem less real than arrows, they don't seem
to interact with the environment. Well...
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| User: "boson boss" |
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| Title: Re: Arrows and stability |
12 Jan 2007 10:38:28 AM |
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I coined a scenario for the arrow. The idea is to treat the arrow's own
vibration like a sound wave. When the arrow hits the board, particular
energy contained in it's own oscillation is partially absorbed and
partially reflected back into air.
We know in theory what energy is that - energy of launching - and we
have the frequency taken from the footage. The presumption is that it
is as it seems a wave between "fixed" ends.
Then, the reflected portion should go out the right end with again it's
own proper frequency while the tip is stuck in the board. I guess it
would be same frequency and that it would dissipate exponentially.
What would be the absorbed part that aids to the penetration? Does it
aid like in they said on tv?
What is the true nature of the type of mechanical "storage" of energy?
For example, for the japanese master "tuning" the arrow seems to have
meaning, but how does it hold water when it comes to the fact that the
whole energy of the arrow comes from the launching sequence?
(On this account we can trouble minds like this: the spin of arrow is
also at the expense of initial energy as it is the friction with air
that got it to spin via fins. So it gets a little less velocity for the
sake of spin. But ironically this can't be true since the spin actually
makes it fly straight and longer. What if the fins fell off moments
before impact? :-)
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| User: "boson boss" |
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| Title: Re: Arrows and stability |
12 Jan 2007 10:44:53 AM |
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boson boss wrote:
I coined a scenario for the arrow. The idea is to treat the arrow's own
vibration like a sound wave. When the arrow hits the board, particular
energy contained in it's own oscillation is partially absorbed and
partially reflected back into air.
We know in theory what energy is that - energy of launching - and we
have the frequency taken from the footage. The presumption is that it
is as it seems a wave between "fixed" ends.
Energy total from launch = kinetic of whole straight motion + spinning
kinetic + it's own vibration treated as sound wave.
Then, the reflected portion should go out the right end with again it's
own proper frequency while the tip is stuck in the board. I guess it
would be same frequency and that it would dissipate exponentially.
What would be the absorbed part that aids to the penetration? Does it
aid like in they said on tv?
What is the true nature of the type of mechanical "storage" of energy?
For example, for the japanese master "tuning" the arrow seems to have
meaning, but how does it hold water when it comes to the fact that the
whole energy of the arrow comes from the launching sequence?
(On this account we can trouble minds like this: the spin of arrow is
also at the expense of initial energy as it is the friction with air
that got it to spin via fins. So it gets a little less velocity for the
sake of spin. But ironically this can't be true since the spin actually
makes it fly straight and longer. What if the fins fell off moments
before impact? :-)
.
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