Geological Research, Optical Research

Our Goal

Measuring curvature

There has been much debate about whether the globe curvature is measurable. If the earth is a globe, of the size we are told, then it must curve downward from the observer at a rate of 6 feet in 3 miles and 24 feet in 6 miles. Many tests have indicated that even at 3 miles the required 6 feet of curvature is not observed. Counter claims that the distance is too small or that it is refraction which produces the still visible portion of the object must be overcome to establish the facts.

To counter these arguments FECORE will perform an experiment or test which is definitive beyond any reasonable doubt. In the process we will collect presently unknown facts about the nature of refraction near the earth’s surface. This data can be applied to near surface line of sight observations in the future.

Project description

Lake Balaton Hungary

Lake Balaton located in Hungary at 46° north latitude has a straight line of sight over water of 66 km or 41 miles. During the month of January the lake is normally frozen providing a smooth surface which can be easily accessed along its entire length. The theoretical amount of downward curve in 66km is 342 meters or 1121 feet.

The FECORE Lake Balaton laser test is planned for February 2018. We will be using two high powered lasers. One of the lasers emits a 450 nm wavelength blue light and the other emits a 515nm wavelength green light both having a 0.08mRad divergence. By using lasers of different wavelengths the refraction difference can be measured and thus the exact overall degree of refraction calculated.

The lasers and the cutting edge collimators (focusing devices) have been custom built for this experiment. The lasers will transmit from the same area of the lake to a target on the other side of the lake. The tests will be performed over a 4 day period with both day and night measurements as well as time-lapse documentation of the refraction over a 24h period.

The theoretical amount of curvature over the 66 km is 342 meters or 1121 feet. The lasers will be placed at a height of 2 meters above the lake. A measurement will be made at 500 meters to level the lasers to an accuracy of 1/1000th of a degree. Measurement tables will be placed every 6 km along the entire length of the lake. At the final table the overall laser beam height will be measured. If the surface of the water is on a curved globe then the center of the laser beam should be at 291 meters or 956 feet above the final table.

In the event that the surface of lake Balaton is determined to be flat then the experiment will be repeated over the sea in Dubai in UAE, Lake Baikal in Russia and the Great Lakes in the United States. In the event the surface of the lake is curved that will be reported as well.

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