Those who don't believe in UFOs certainly have some valid points, for instance, If there are UFOs, where is the physical proof? True, this proof is hard to come by. There are however, a few fairly good examples of what may constitute that proof. Ibrahim Sued, a columnist for the Rio de Janeiro newspaper, 0 Globo, received an odd letter one day. This letter described the explosion of a flying disk at a Ubatuba, Sao Paulo, Brazil, beach. Sued published the letter on September 14, 1957, which alluded to 3 small pieces of metal which came in the letter.
The letter explained how this metal had rained down from a flying disk, some of the metal had been collected by the sender of the letter. The return address could not be deciphered, and there was no reference to any witnesses of the explosion. Dr. Olavo Fontes, representing Brazils APRO, launched an all out search for more information on the explosion, but found none.
What little information that was included in the letter was just not sufficient enough to track down any leads. Sued was told that the explosion was over Toninha Beach in 1957, which narrowed down the search. A piece of metal from the Toninha incident was analyzed and showed a 99.99% pure magnesium. One of the other fragments supposedly came from one of the 3 UFOs that were seen flying over Caminas, also in Sao Paulo, in December 1954. This fragment was 88.91% tin alloy.
Finally, Sued surrendered all of the metal to Dr. Fontes, who had arranged for the finances to have them analyzed at the Mineral Production Laboratory of the Department of Mineral Production in the Brazilian Ministry of Agriculture. For security purposes, Fontes hand delivered the samples. Internationally known chemist Dr. Fiegl performed a qualitative, acid test, which proved that the samples were magnetic.
Dr. Fontes took one of the first fragments, and had it subdivided into several smaller pieces, and sent 2 of them to the Spectrographic section of the Mineral Production Laboratory Semi-Quantitative Emission Spectrochemical Analysis Lab. Another of the pieces was analyzed by Dr. Luisa A. Barbosa, whose results showed that the metal was made up of only the element magnesium.
Another piece of the 1st fragment was submitted to separate spectrographic analysis by Mr. Elson Teixeira of the Mineral Production Laboratory. Mr. Teixeira confirmed Dr. Barbosas finding that the fragment was pure magnesium. This may seem confusing, so what is the significance of these findings? Since it is not possible to manufacture any absolutely spectrographically pure element on Earth, if the findings of Barbosa and Teixeira are accurate, then the fragment of the metal can only be extraterrestrial. Unfortunately, there are no remaining samples of the pure magnesium fragments to be analyzed, as they were used up in the testing.
Would it have been beneficial to have had some of the test results done in America? Yes, but that chance is long passed. Also, any additional information that could have been gleaned from witnesses of the UFO explosion would have only added to the validity of the Ubatuba fragments. The Ubatuba case would certainly benefit from more information.