Is it a Gravity Beam Generator? In September 2003, Jeff Cook
published plans online for a new invention that he claims produces
a beam of force that can bend a candle flame -- even through solid
objects! Don't take our word for it --download the plans and build
Plans [PDF, 130k]
The Jeff Cook effect is a polarized effect -- a flame held in
front of the device is attracted to the coil as power is applied.
Dual Coil Design
This profile photo shows the primary effect coil to the right, and
the smaller coil to directionalize the effect on the left.
Interestingly, the Cook Effect does not seem to decrease with the
square of the distance, as shown in this photo at long range.
Jeff Cook claims that this effect penetrates through barriers like
glass and wood to affect the candle flame with the same intensity.
A New Gravity?
Dr. Ning Li predicted a "push-pull" conceptual effect that she
calls "AC Gravity" in the mid-1990's. The idea is that perhaps
gravity is a more complex force than what we observe in nature,
and that as a result of this it may be able to produce interesting
new effects as yet unseen.
The Jeff Cook Effect could be the beginnings of one of these
designs. The device uses a set of innovative magnetic-coils wound
in a unique manner to create a beam of force that Cook claims will
bend a candle flame or produce a very light pressure on human
Cook claims that the JCE Generator is capable of not only exerting
force on a flame, but can also do it through solid objects. Cook
has experimented with putting obstacles in between the generator
and the flame, and claims that the beam of force is not modified
as it passes through objects like wood and glass.
Interestingly, this corresponds to Podkletnov's observations with
the rotating superconductor experiments he performed in Finland in
the early 1990's. Podkletnov's reported 2% reduction in the mass
of a test-sample was also not effected by obstacles in between his
superconductor and the sample. This supports in general that idea
that gravity cannot be shielded.
Cook's claim that the beam is not effected by obstacles is perhaps
the most important part of his observations -- if this is indeed
supported by further testing, then it is possible that Cook has
stumbled across an innovative method for creating directional
beams of some type of force -- perhaps gravitational.
Shades of Marcus
In many ways it is difficult to compare the claims of Jeff Cook to
the sensationalism surrounding Marcus Hollingshead's device from
the December 2002 timeframe, but there are several interesting
Firstly, I believe that Jeff's experience in the newsgroups
teaches us something about tolerance and acceptance of new ideas,
and secondly, both Marcus and Cook were thinking about similar
design concepts while creating very different prototype designs.
Jeff Cook began posting information about his experimental claims
online in the newelectrogravity newsgroup in August 2003. While he
had hoped for immediate interest in the device, the overwhelming
response was negative from the newsgroup members. The primary
rejection was simply in response to his photos, which didn't
appear convincing enough for the newsgroup members, but secondly
was the lack of evidence in addition to Cook's claims. Both of
these issues may now not even exist, as Cook has released
construction plans to the public to facilitate additional
Cook indicated to American Antigravity that his original designs
had been based on the idea of a "rotational device" for affecting
gravity. This would certainly fit with the concepts that not only
Marcus examined for controlling gravity, but also have been
considered by Li, Podkletnov, Searl, Hamel, Chiao, and many
Cook's idea took a detour from the idea of rotation when he
decided that he wanted to create a device that didn''t rotate for
the sake of simplicity in construction. He said that the idea was
to take the concept of rotating magnets and condense that into a
solid-state device that was easy to build. After a few failed
prototypes, he arrived through trial and error with the current
design, which he believes embodies the concept of rotational
fields into a device that doesn't require motion to generate an