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Scientists are uncovering the secrets of two port cities lost under the waters of the Mediterranea...

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A number of scientists found genes in the 18th and 19th centuries.  Scientific discoveries were made one after another in the 18th and 19th centuries.  Many scientists succeeded in finding out how the features of living things were passed on to the next generation in the 18th and 19th centuries.  It took a long time for scientists to find out why members of the same family look like each other.  
uncover    uncovered    to be cover    uncovering  
which    what    in which    of which  
uncover    to be uncovered    uncovered   uncovering  
Great Scientific Discoveries Will Never Be Possible  The Harsh Challenge Has to Be Met by Modern Scientists  The State Sponsorship and Scientific Enterprise Are All in Vain  The Chance for Great Scientific Discoveries Becomes Scarce  
Felt, left, uncovered   Feeling, left, uncovered   Feeling, leaving, uncovered  Felt, left, uncovering all  
which    what    in which    of which  
Great Scientific Discoveries Will Never Be Possible  The Harsh Challenge Has to Be Met by Modern Scientists  The State Sponsorship and Scientific Enterprise Are All in Vain  The Chance for Great Scientific Discoveries Becomes Scarce  
are being uncovered    have been uncovering    are uncovering    have uncovered  
Felt, left, uncovered    Feeling, left, uncovered   Feeling, leaving, uncovered    Felt, left, uncovering  
thought that they knew a great deal and could solve most problems of science  were afraid of facing up to the realities of scientific research  knew that they were ignorant and wanted to know more about nature  did more harm than good in promoting man's understanding of nature  
are being uncovered    have been uncovering       are uncovering    have uncovered  
Great Scientific Discoveries Will Never Be Possible  The Harsh Challenge Has to Be Met by Modern Scientists  The State Sponsorship and Scientific Enterprise Are All in Vain  The Chance for Great Scientific Discoveries Becomes Scarce  
At    By    Up to    Not until  
there have been decreased returns in the research of fundamental science  there are too many important things for scientists to study  applied science and engineering take up too much time and energy  today’s scientists are not as intelligent as those in the past  
to award    to be awarded    to have been awarded    to have awarded  
are being uncovered    have been uncovering    are uncovering    have uncovered  

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