examined the fossils with a particle accelerator and found out there was seasonal growth on the bones.All fish bone cell densities (密度) and volumes can indicate the season.Because the accelerator also could capture the size,researchers were able to determine when in the y...
Watson, Crick, Franklin, and Wilkins knew the next step was to get the precise structure of DNA. It was February 1953 when a three-dimensional model that looked like a toy finally sat on Crick’s desk. It was the biggest advance since Mendel created the genetics paradigm; the Nobel Prize...
” Woodruff recalled recently. “Teller had always been an advocate of strong defense, and in the lecture he was simply posing the potential of a nuclear-pumped X-ray laser as a research program--which I supported
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During the sixteenth century, astronomy was the field in science which could be perceived as the pivotal field where traditional forms of seeking for knowledge were questioned and the principles of modern science were developed. The main reason was that observation (of the movement of the stars) ...