Unconventional Flying Objects: A Scientific Analysis
Paul R. Hill

Here is a book to intrigue both non-technical and more mechanically inclined UFO enthusiasts. Without making a case for the origins of UFOs, Hill argues that their functionality is feasible by applying established principles of physics to existing reports in which an amazingly consistent UFO behavior has been described. In language which is technically sound, but not so advanced that the layman could not understand, Hill works out several possible propulsion systems for these mysterious craft.

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Here is a book to intrigue both non-technical and more mechanically inclined UFO enthusiasts. Without making a case for the origins of UFOs, Hill argues that their functionality is feasible by applying established principles of physics to existing reports in which an amazingly consistent UFO behavior has been described. In language which is technically sound, but not so advanced that the layman could not understand, Hill works out several possible propulsion systems for these mysterious craft.

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Dr. Roger Bateman, a DoD research scientist.
Excellent research.

This book only got published after Dr. Paul Hill died and his daughter took his classified notes to a publisher. For 30 years Hill, a high ranking NASA scientist researched UFO sightings and landings. This is all documented, in spite of the Government and NASA saying they don't research UFOs. Filled with DETAILS, SCIENCE, and FACTS, for both the layman and scientist. This is an must read for anyone interested in the truth about UFOs. Also check out Steiger and Marrs books in this genre.

Also recommended: Brilliant government conspiracy thriller, 'Alien Rapture' by Brad Steiger. Superb research by Jim Marrs in 'Alien Agenda.' Read the reviews.

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One of the TOP 3 Books in this Genre!
Reviewer: A reader

The text book on UFOs; how they work, the research and investigation and scientific analysis is all discussed. Alien Rapture by Steiger is the covert agenda delivered in a page turning fiction format. Alien Agenda by the best selling author of 'Crossfire', Jim Marrs is the history and current state of UFOlogy. I've read over 150 books on UFOlogy and am considered somewhat of an expert. These three books are a MUST BUY for anyone interested in the subject. This book by Dr. Hill only got published because his wonderful daughter had the foresight to get his manuscript to a publisher after he died. He was a NASA scientist for 30 years and investigated UFO sightings and contact. He was forbidding to talk about his work. NASA denies that they or anyone investigated UFOs at NASA. After you read this great work, you'll know better.

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Unique, and mandatory if you're interested in UFOs
Reviewer: A reader from Westbury, NY USA

This book doesn't really need another 5 star review. But it deserves one, so here I go. This book is utterly unique within the UFO literature in that it is the only pro-UFO book that actually does the math. The late author was a NASA engineer who saw enough evidence for UFOs (including personal observations) to take their existence as a given. So the books spends little time arguing for their reality but simply goes on to ask, "Okay, how do they work?" He makes a convincing case that the observed motion of UFOs, their lack of a sonic boom, and the fact that they experience bullet like accelerations without crushing their occupants, can all be explained in a parsimonious fashion if you assume one thing -- that they utilize a focused repulsive force that acts against all (not just charged) matter, i.e., some sort of "anti-gravity". He also shows that the observed color changes are consistent with the assumption that creating this force creates a plasma as a side effect.

Now it must be said that the author gives no convincing explanation of *how* such a repulsive force can be generated. And, contrary to what one review here says, scientists have not discovered any "fifth force" that is capable of creating anything equivalent to anti-gravity. It is the $64 billion question how such a force could be generated -- nothing in contemporary physics suggests it could be a practical possibility. For a hard core skeptic I suppose that's sufficient reason to ditch the whole book. But I can hardly criticize a NASA engineer for failing to discover some physical principal that has eluded Einstein, Bohr, Schroedinger, Dirac, Feynman, Weinberg, Witten, or brainiac-of-your-choice. The important thing about this book is that it shows that UFOs don't involve half a dozen inexplicable phenomena, rather the mysteries can be reduced to *one* inexplicable phenomenon. And since aliens might have evolved a million or 100 million years before ourselves, they've had plenty of time to discover some physics we don't know about. After all, the read head on my hard drive uses quantum mechanical phenomena that would have baffled the brightest minds of only 120 years ago.