Word: provenance
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Dates: during 1960-1969
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...most telling argument against the reality of UFOs is that no proven physical evidence or hardware has ever been found to support the saucers' existence. And although astronomers photograph the sky incessantly, no UFO has ever left an image on their photographic plates...
Enlarging the Evidence. Walker's most proven technique is based on the fact that most rocks and minerals contain a small impurity of uranium, which fissions (splits), leaving tiny scars or tracks inside the substance. Until recently, this phenomenon remained unobserved. Walker found that even with an electron microscope the fossil tracks were too tiny-.001 of an inch long and only ten atoms wide-to see in significant numbers...
...Some proven Broadway crowd pleasers for the vacationers flocking into New York, drawn by the city's social and cultural features...
...public respect for law far higher. Above all, there is evidence to show that-some statistics to the contrary-violent crime in the U.S. is not really growing relative to the population. After massive researches, the President's Crime Commission admits that crime trends cannot be conclusively proven out by available figures. According to FBI reckoning, crimes of violence have risen about 35% so far in the 1960s. But these figures fail to consider two important factors: population growth and changes in crime reporting. Experts believe that part of the apparent increase is caused by the fact that each...
...Proven Principle. On the same day, Esso Petroleum of Great Britain held an oil disposal demonstration at its Fawley refinery near Southampton. Technicians poured a barrel of crude oil on a pond, then covered the slick with a shredded polyurethane foam developed by J. Bibby & Sons of Liverpool. The foam quickly turned black as it absorbed the oil. The oil-soaked foam was then simply trapped and towed ashore, where Esso showed how the oil could be pressed out for reuse...