Visionaries are commonly thought of as those who can see into the future and go where no one has gone before. Commonly, visionaries are classified as eccentric and non conforming - the crazy ones, the misfits, rebels, troublemakers......the ones who are crazy enough to think that they can change the world, and are the ones that do. The final products of some visionaries are more obvious that others. In addition to the obvious visionaries listed below, we at PREF, salute the vision that eventually led to the National Park Service. It arose from that crazy concept that land that could be deeded or sold could also be designated for the good of the all of the people to enjoy, educate, preserve, and protect for future generations. With over 300 such parks today in the United States we include the National Park Service and those who made it possible as visionaries.

Albert Einstein was a visual learner one of only two scientists to achieve a scientific triology - the publication of three scientific papers within one year which forever changed the world. This remarkable accomplishment, in part, included explanations for the photoelectric effect (for which he was awarded the Nobel Prize), the special theory of relativity, and the mass energy equation which is familiar to most of us (E=mc2). The only other scientist to achieve such a feat was Sir Isaac Newton in describing the laws of motion, gravity and the creation of calculus around 1650. Perhaps the two greatest scientists in the history of the world.

Nikola Tesla, a visual learner, has been described among other things as an eccentric genius and a mad scientist. He is perhaps best known for alternating current (AC) including commercial uses which were economically feasible. In contrast to direct current (DC), AC could be transferred over long distance and was therefore able to sustain power grids supplying multiple cities or countries. He was the first to show the transfer of wireless energy. The electrical unit, the Tesla, is named after him. His accomplished are of enormous importance in our modern world.

Linus Pauling is considered to be one the 20 greatest scientists of all time, although he did not graduate from high school. He is best known for his application of quantum mechanics to chemistry and is considered the father of molecular biology. Using x-ray diffraction studies he was able to determine the three dimensional structure of hemaglobin and apply this knowledge to demonstrate the molecular changes that were present in sickle cell anemia. He was one of four persons to receive two Noble Prizes (Chemistry and Peace).

Thomas Alva Edison, another visual learner, was one of the greatest inventors of all time and was granted over 1,000 patents. He is known for his invention of the electric light bulb, but he also invented other common household or familiar items such as the phonograph player and motion picture devices. His inventions were adaptable to a large scale which also required business knowledge. In this regard, Edition was one of the original founders of the General Electric Company. The Edison Hotel in Sunbury, Pennsylvania is still in existence and was the first hotel to use on of Edison's devices for electricity.

Marie Curie is the only person to be awarded two Nobel Prizes in two different scientific fields (physic and chemistry). She was also the first female to be awarded a Nobel Prize. She is best known for her studies relating to radioactivity where she discovered iridium and polonium. This provided the ground work for modern day imaging technology. Curie, however, advocated the use of this technology as early as World War I where portable x-ray machines were used to evaluate injuries.