Weitere ähnliche Inhalte Ähnlich wie LIFTER evaluation by the dstl MOD (UK Ministry of Defence) (20) Mehr von Naudin Jean-Louis (9) Kürzlich hochgeladen (20) LIFTER evaluation by the dstl MOD (UK Ministry of Defence)2. Horizon Scanning
• For MOD to maintain its technical excellence and retain
its position of superiority a keen awareness of new
technologies is essential.
• 90% of the technology developments are outside the
Mod funded arena.
• Developments of current technologies are emerging
constantly, and these form a significant part of the
defence superiority retention.
• However, in order to identify disruptive technologies it is
prudent to “look outside the box”, and it is only here that
the high-risk high-gain developments will be found.
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3. Some Examples of Unconventional
Science
• Cold Fusion (Low Energy Nuclear Reactions)
• Bio-communication
• Water Memory
• Casmir Force
• Hydrogen Storage in Carbon Nanofibres
• Podkletnov’s Gravity Shielding
• Asymmetric Capacitors
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4. Cold Fusion (Low Energy Nuclear
Reactions)
• Original concept by Fleishman and
Pons in 1988 entailed fusion of
deuterium nuclei in a palladium lattice
by electrolysis of heavy water
– claimed the heat produced was in
excess of that generated by energy
input.
– Ability to harness energy at room
temperature would have major
implications.
– US DOE study
– Work criticised as poor science,
experimental errors
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5. Transmutation Y Iwamura et al
• Iwamura LENR transmutation
experiment in 2002 less
ambiguous using XPS.
• Cs transmutated to Pr an
increase in A.W of 4 protons and
4 neutrons following gaseous
deuterium diffusion
• Ref Iwamura et al 10th Int Conf on Cold Fusion
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6. Intercellular Communication
• Communication between biological
systems is traditionally considered
in terms of chemical signalling,
however:-
– Japanese work claiming assisted
aid growth of neighbouring culture
under non growth conditions
attributed to sonic waves
– Russian work claiming
sympathetic death of a separated
culture via UV signalling
• Suggest possibility of physical
signalling
• Ref Distant Intercellular Interactions in a system of two
tissue cultures Psychoenergitic Systems 1(3) p141
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7. Water Memory
• Originated from J Beveniste claim
of persistent activity Billion fold
dilution of allergen.
• 1988 paper submitted to Nature.
• More recent work claimed the
ability to transfer activity to pure
water by EM/RF effects.
• Proposed that Memory of water is
electromagnetic in origin and that
electromagnetic signals are basis
of molecular communication.
• Ref www.digibio.com
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8. Casimir Force
• The force was postulated in 1948 by H a
Casimir when working for Phillips Labs on
colloidal dispersions.
L2
• In essence the field is a result of A
suppression of EM fields within a cavity.
• Perfect vacuum at absolute zero has L1
fluctuating field of mean energy of half
energy of a photon.
• Plates 1cm^2 separated by 1micron
have Casimir force of 10-7 N π 2
h c
F = 4
A
• ie weight of small water droplet 240 a
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9. Hydrogen Storage in carbon
nanofibres
• New Scientist Dec 1996
“Hydrogen-Powered cars could travel up to 8000
kilometres on a single tank of gas thanks to a graphite
storage material developed by researchers at North-
Eastern University in Boston.”
• US Patent Rodriguez et al.
– Storage of Hydrogen In Layered Nanostructures.
– Claims 50 - 70% hydrogen absorption at room temperature, 40 -
120 bar.
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11. Gravity Shielding
• In 1992 Podkletnov published
results of weight loss above a
superconducting disc, which was
magnetically levitated and rotated
at several thousand rpm in
presence of magnetic field.
• Showed weight loss of less than
0.5% to 2% as spin increased.
• Further paper accepted by J
Physica D in 1996 but withdrawn
• NASA / Ning Li attempted to
replicate between 1996 and 2002
• Ref www.holoscience.com/mws/antigravity
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12. P o d k le tn o v G ra vity Im p u ls e G e n e ra to r
2 -L a ye r
D is ch a rg e In n e r C oil
Y B C O E m itte r,
4
C u rre n t ~ 1 0 A u s e d to crea te
D ia = 8 0 - 1 2 0 m m
L e ng th 0 .1 5 - 0 .4 m T y p e II
T hic k = 7 - 15 m m
M a g n e tic V o rte x
(C a tho d e)
M e ta l S tru c tu re
T a rge t
P e n d ulu m (A n o de ) C o n du c tin g T u be
c o n tainin g liq uid g a s
(N 2 ~ 9 0 ºK o r H 2 ~ 4 0 ºK )
G ra vity Im p u ls e to m a in tain
Beam s u p erc o nd u c tivity
D a n ge r
1 m
Zone
R E P U L S IO N
S e v e ral µ s
2 MV
Bob
v a riou s pump H ig h V oltag e P ulse
m a te rials fro m M a rx G e n e ra to r
m e ta l O u te r C oil C h a rg e tim e = 1 2 0 s
Q u a rtz G la s s
g la s s 1 s p ulse D is c ha rge = 2 m s
C ylin d er,
c e ra m ic o n dis ch a rg e
Vacuum
wood (0 .9 T )
UHF o r g a s fille d
ru bb e r F a rad a y
p la s tic A b s o rbe r Cage 1 .5 m
S c re e n
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13. Boeing's Van de Graaff generator proposed for the
Podkletnov experiments [15].
• Device could be used as a
ballistic missile shield.
• Reported in Jane’s Defence
weekly in June 2002 that
BOEING Phantom works had a
project entitled GRASP to
replicate claims.
• No further reports
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14. Asymmetric Capacitors
• Originates from the Biefield-Brown effect
– When a high voltage ~30KV is applied to electrodes
of an asymmetric capacitor a net force is observed
• Brown was a lab technician and Biefield a Prof at
Denison Uni Ohio
• Work dates back to 1920’s when Brown was
experimenting with a Coolidge tube.
• Patents issued in 1927, 1957, 1960 by Biefield –Brown
• And more recently by NASA in Jan 2002 and June 2002
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15. Background
Basic Lifter Design
Slightly more complex ...
Huge …!!
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16. Why are MOD interested?
• Potentially a disruptive technology
• Possible applications include
– Propulsion
– Drag Reduction
– Stealth
• A full silent flight and no moving parts (no mobile surfaces
reflecting radar waves)
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17. Current Dstl project
Dimensions Materials
• Foil
• Wire height
• Wire
• Foil height
• Dielectric
• Length
• (Weight)
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18. Current Project Aims
• Attempt to fully understand the physics
• Investigate how voltage/current & thrust are effected by:
– Capacitor size/shape
• Scaling effects
• electrostatic field is a function of electrode geometry …
• geometry
– torroidial (doughnut) … concentric rings separated by shields to
prevent ionic cross-over
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19. Current Dstl Lifter project
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20. Lifter Size
Length = 200 mm Length = 50 mm
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21. Wire height
• Lifter IW3
d = 15mm
d = 30mm
d = 25mm
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22. Foil height
• Lifter IW4
Foil height = 36 mm Foil height = 21 mm
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23. Modeling Electrostatic Field
• Using MatLab PDE
• Preliminary results show this could be useful
• Can vary Capacitor geometry as it uses FE
• Also vary input voltage
• However, this is a static solution and as such limited
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27. Dielectric Constants
Material Dielectric constant
Helium 0.2
Air 1
Nitrogen 1.1
Carbon Dioxide 1.8
Polystyrene 2.6
Paper 3
Glass 8
Water 78
Barium Titanate 1,000
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28. Dielectric – preliminary results
• Air Stable lift: 0.25mA & 19.2KV
• Nitrogen Stable lift: 0.31mA & 18KV …(similar to air)
• Helium No lift … at 4.20mA & 12.8KV
• Steam
• CO2
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29. Results – Voltage
40
35 IW 4 , f o il h e ig h t= 4 0 m m , 2 .8 0 g
IW 4 , f o il h e ig h t= 3 6 m m , 2 .6 9 g
30 IW 4 , f o il h e ig h t= 3 2 m m , 2 .5 6 g
IW 4 , f o il h e ig h t= 2 8 m m , 2 .4 5 g
25 IW 4 , f o il h e ig h t= 2 1 m m , 2 .2 9 g
Voltage (KV)
IW 8 , f o il h e ig h t= 3 8 m m , 3 .1 6 g
20 IW 8 , f o il h e ig h t= 3 8 m m , 3 .6 6 g
IW 8 , f o il h e ig h t= 3 8 m m , 4 .2 2 g
15 IW 8 , f o il h e ig h t= 3 8 m m , 4 .7 2 g
IW 8 , f o il h e ig h t= 3 8 m m , 5 .1 6 g
10 IW 8 , f o il h e ig h t= 3 8 m m , 5 .6 6 g
IW 8 , f o il h e ig h t= 3 8 m m , 6 .1 6 g
5 IW 3 , f o il h e ig h t= 2 5 m m , 1 .3 5 g
0
0 10 20 30 40 50
W ir e H e ig h t (m m )
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30. Results – Current
1 .2
1 IW 4 , f o il h e ig h t= 4 0 m m , 2 .8 0 g
IW 4 , f o il h e ig h t= 3 6 m m , 2 .6 9 g
IW 4 , f o il h e ig h t= 3 2 m m , 2 .5 6 g
0 .8 IW 4 , f o il h e ig h t= 2 8 m m , 2 .4 5 g
Current (mA)
IW 4 , f o il h e ig h t= 2 1 m m , 2 .2 9 g
IW 8 , f o il h e ig h t= 3 8 m m , 3 .1 6 g
0 .6
IW 8 , f o il h e ig h t= 3 8 m m , 3 .6 6 g
IW 8 , f o il h e ig h t= 3 8 m m , 4 .2 2 g
0 .4 IW 8 , f o il h e ig h t= 3 8 m m , 4 .7 2 g
IW 8 , f o il h e ig h t= 3 8 m m , 5 .1 6 g
IW 8 , f o il h e ig h t= 3 8 m m , 5 .6 6 g
0 .2
IW 8 , f o il h e ig h t= 3 8 m m , 6 .1 6 g
IW 3 , f o il h e ig h t= 3 5 m m , 1 .3 5 g
0
0 10 20 30 40 50
W ir e H e ig h t ( m m )
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31. Results – Power
40
35
30
IW 4, foil height=40mm, 2.80g
IW 4, foil height=36mm, 2.69g
25
IW 4, foil height=32mm, 2.56g
IW 4, foil height=28mm, 2.45g
Power (W)
IW 4, foil height=21mm, 2.29g
20 IW 8, foil height=38mm, 3.16g
IW 8, foil height=38mm, 3.66g
IW 8, foil height=38mm, 4.22g
15 IW 8, foil height=38mm, 4.72g
IW 8, foil height=38mm, 5.16g
IW 8, foil height=38mm, 5.66g
10 IW 8, foil height=38mm, 6.16g
IW 3
5
0
0 5 10 15 20 25 30 35 40 45 50
W ire Height (mm)
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32. Results – Mass v Power
7 .0 E-0 3
6 .0 E-0 3
IW 4 , L = 4 0 m m
5 .0 E-0 3 IW 4 , L = 3 5 m m
IW 4 , L = 3 0 m m
Weight (Kg)
4 .0 E-0 3 IW 4 , L = 2 5 m m
IW 8 , L = 4 4 m m
3 .0 E-0 3 IW 8 , L = 4 0 m m
IW 8 , L = 3 5 m m
2 .0 E-0 3 IW 8 , L = 3 0 m m
IW 3 , L = 2 0 m m
1 .0 E-0 3 IW 3 , L = 2 5 m m
IW 3 , L = 3 0 m m
0 .0 E+ 0 0
0 10 20 30 40
P o w e r (W )
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33. Mass v wire height, foil height and
current
M ass v L *I*fo il heig ht
7.00E -03
6.00E -03
IW 8, L= 44
IW 8, L= 40
5.00E -03
IW 8, L= 35
IW 8, L= 30
Lifter weight (Kg)
4.00E -03 IW 4, L= 40
IW 4, L= 35
IW 4, L= 30
3.00E -03 IW 4, L= 25
IW 3, L= 20
IW 3, L= 25
2.00E -03 IW 3, L= 30
1.00E -03
0.00E + 00
0 200 400 600 800 1000 1200 1400 1600 1800 2000
W ire h eig h t [L ] * fo il h eig h t * cu rren t (m m m m m A)
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34. Weight measured on Balance
12
10
8
IW 8 + 6 .7 g , M in w e ig h t
Weight (g)
IW 8 + 6 .7 g , M a x w e ig h t
6 IW 8 , M in w e ig h t
IW 8 , M a x w e ig h t
4
2
0
0 5 10 15 20 25
Vo lta g e (K V)
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35. Results - Summary
• As capacitor plate spacing increases, V increases but
current density decrease … therefore power required is less
variable.
• Asymmetry of capacitor plates less significant than the
capacitor plate spacing
• The scale effect is not fully characterised as yet , there is an
indication that a critical capacitor spacing is necessary.
• Mass is a function of product of current capacitor spacing
and collector plate height
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36. Observations
• The greatest force on capacitor is when small electrode is
positive.
• The effect occurs in a dielectric medium (air)
• The effect is associated with onset of corona discharge
• The force is independent of spatial orientation
• The details of the physics of the effect is not understood
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37. Observations (2)
• Mechanism generally considered in terms of ionic
motion
– However, has been shown that effect is independent
of voltage polarity
– Also calculations suggest that mass lifted by ionic
thrust is more than an order of magnitude less than
that observed.
– Also weight loss observed prior to lifting
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38. Unconventional Science
Conclusions
• Unconventional science is by its very nature difficult to verify
– If you do not understand the underlying science it is difficult to
know what are the important boundary conditions.
• A large proportion of the claims made may be down to poor science/
experimental procedure, a sub conscious willingness, nevertheless if
any are true then the consequences could be far reaching.
• The initial benefit proposed may not be the major benefit
– i.e. cold fusion limitless energy perhaps now radioactive waste
disposal
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39. Any questions …?
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