Background
Johann Bessler - Wikipedia
Orffyre.com - Bill McMurtry
Orffyreus and his Perpetual Motion Machines - Ramesh Menaria
Bessler's Wonderful Wheel (Article, 1956)
Altered Dimensions - Orffyreus
HP's Perpetuum Mobile - History and Analysis
Bessler-Rad - Volker Keller (in German, use google to translate) 
Perpetual Motion... An Ancient Mystery Solved? - John Collins
Gravity Motor Technology - Larry McCart
The Marvelous Wheel of Johann Bessler - Peter Grütter
The Gravity Converter (in German, use google to translate) - Georg Künstler
Conservative Forcefield Converter - Øystein Rustad
In Depth Mechanical Analysis by Alfred Evert
PM Machine Designs and Theory - Nathan Coppedge
Hammer Wheel - Slavek Krepelka
Encoded Writing - Orqvav
The Power of One, - Jan Rutkowski
Chiastic Structures, Orffyrean Bearings, and the Bessler Pendulum - Alden Park
The Secret History of the First Law
The Plight of the Obscure Innovator
The Structure of Scientific Revolutions
Abhorrent Ideas
Impossible Inventions
The Myths of Skepticism
Skepticism or "Horganism?"
Weird But True
The Least Understood Force - NASA's Gravity Probe B
Missions in Search of Gravity
Tidal Power: Harnessing Gravity
The Speed of Gravity?
Light Speed versus Special Relativity
Repeal the Speed Limit
Faster Than Light... A Particle Theory of Gravity
Absolute Motion... The Gravity Energy Paradox
Curious Properties of Gravity
The Force of Empty Space
An Introduction to Zero-Point Energy
Questions and Answers about the Origin of Inertia and the Zero-Point Field
Quantum Fields: Tapping Vacuum Energy
The Energetic Vacuum: Implications For Energy Research
Vacuum Energy as the Cause of Gravity
Everything For Nothing
Engineering the Vacuum
Scientists Stunned to Learn Universe May Be Accelerating
Weird Discovery About Our Accelerating Universe Ranks No. 1 in Science Magazine Annual Review
Supernova Found to Confirm Accelerating Universe
Turning On the Universe
Satellite to Unveil Dark Energy That Drives Accelerating Universe
A Dark Force in the Universe: Scientists Try to Determine What's Revving Up the Cosmos
Astrophysics Challenged by Dark Energy Finding
Quintessence
Supernova/Acceleration Probe: Studying the Dark Energy of the Universe
Overview of Push Gravity
A Push From the Other Side?
Neutrinos and Linear Momentum
Gravity, Inertia, and Radiation
Vacuum Energy as the Cause of Gravity
Cosmic Long-Wavelength Photons and a Fundamental Understanding of Gravitation
Autodynamics and the Pico Graviton
SMOT - Simple Magnetic Overunity Toy
Finsrud Technology and the Chaos Pendulum
The Allais Effect, more...
The Podkletnov and Woodward Effects, more...
NASA's Gravity Shielding Experiments
Directory Science: The Comprehensive Science Directory
Zeno's Paradoxes
The Law of Averages
Gravity Concepts: Gravity Links
The Gyroscope Demystified
Physics of Swinging
Bill Beaty's "Antigravity Underground"
American Antigravity
Ridiculed Discoverers, Vindicated Mavericks
Impact - Impulse
The Faraday Disk
Stephen Wolfram - A New Kind of Science
Einstein
Open Systems
Entropy
Skepticism
