The Jeff Cook Effect is a gravitational effect involving what is popularly known as antigravity, claimed to have been produced by an independent researcher called Jeff Cook.

Antigravity claims and devices are nothing new. Such claims in the past 100 years include experiments done in Germany during World War II, such as a torsion-field generator called the "Nazi Bell Device", as described in Nick Cook's book The Hunt for Zero Point. Others include devices and experiments by Searl, Podkletnov, Ning Li, Hutchison, Hollingshead, and many others. The mystery surrounding these claims occupies the border between science fiction and genuine physics. While information on these devices is most often very sketchy and hidden for developmental or other undisclosed reasons, there is only one that is open for all the world to explore, making this claim notable. This involves the Jeff Cook Effect.

In August 2003, Cook, a previously unknown independent researcher and inventor, published on the Internet the claim that he had created a unique coil configuration which could generate a small gravitation-like field. From one face of the coil, the one that would be the north-seeking pole of a typical electromagnet, small masses were repelled slightly and flames were bent inward. From the other face of the coil, the opposite occured: small masses were attracted and flames repelled. This, according to the inventor, went hand in hand with our current understanding of gravity.

This announcement caught the attention of many enthusiasts, while most scientists were not impressed. The skeptics' reasoning had much to do with lack of viable evidence, and the rest had likely to do with the fact that no one could see how such a simple coil design would ever produce such an effect. Jeff Cook then proceeded, over the next year or so, in developing coils that could make its effects more obvious. He also published the designs for all to reproduce, he took photos, filmed a number of short video clips, developed new experiments involving time alterations, and spinning pendulums, he created his own Yahoo! group, Electrogravity Research, to discuss the device in depth with other enthusiasts, sent his device to a number of other researchers for reproduction, and published a number of papers to the Internet on the subject. No papers have as yet been accepted by a legitimate, peer-reviewed, scientific journal.

In 2004, Cook decided to put a handful of coils up for auction on the Internet as the first legitimate antigravity device ever sold to the public. More recently, he has sold newer coils with new circuitry, each amplifying the effects. Even though results were still unclear, buyers lined up — while the inventor sold the devices near to, if not under, cost.

How exactly the coils work to generate the effect is a mystery, except perhaps to Cook, who continues to find improvements. However, at its most basic level, it consists of a coil of copper wire wrapped around a coil of steel wire with no electrical connections, which is in turn wrapped around a hollow brass core. He has developed a number of oscillators to pulse the coil, which seems in most cases to be a fundamental element of the effect.

The effects begin with the coil of steel wire. Cook discovered that a coil of steel wire will repel both faces of a disc magnet — even when there is no power to the coil. The magnet polarizes the steel wire in such a way when brought near it, the coil acts paramagnetically from the inside, while the outside is attractive to both poles. This one, however, is an effect that has been witnessed by many since his discovery.

Once the coil is powered, the copper wire creates a magnetic field around the steel coil, placing its poles at each end of the coil in the same manner as bringing a permanent magnet near the face. However, the steel wire resists this, as it repels both poles of the magnetic field. The effect is that the magnetic field tends to spiral, perhaps from the atoms aligning in such a way that they share the same (or similar) spin of their nuclei, thereby creating a collective effort. The effect is a rotating magnetic field generated with no moving parts, what Cook calls an "electrogravitational field". Such a field is believed by some, including many back to Einstein, to relate to the production of gravity, which, in turn, will relate to the very substance of space and time from its "gravitational potentials".

While skeptics seem to be fewer each year, there are still many who not only doubt the analysis of such experiments, but also doubt Cook's honesty, calling him a hoaxer. In the meantime Cook is continuing to develop his ideas.

External links

• American Antigravity
• Electrogravity
• Audio Interview with Jeff Cook