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While the scientific community was once divided between supporters of two different expanding universe theories, the Big Bang and the Steady State theory, empirical evidence provides strong support for the former.In 1929, from analysis of galactic redshifts, Edwin Hubble concluded that galaxies are drifting apart; this is important observational evidence consistent with the hypothesis of an expanding universe.Based on this analysis the internal consistency of this dataset is estimated to be 0.017‰.The NAC13v1file contains the Cqc', 1: quality controlled, 0: not quality controlled).In particular, it was the type of knowledge which people can communicate to each other and share.Ernest Rutherford is the father of nuclear chemistry and nuclear physics.While the classification of the material world by the ancient Indians and Greeks into air, earth, fire and water was more philosophical, medieval Middle Easterns used practical and experimental observation to classify materials.In the 17th and 18th centuries, scientists increasingly sought to formulate knowledge in terms of physical laws.

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He discovered the concept of nuclear half-lives and achieved the first deliberate transformation of one element into another, fulfilling one of the ancient passions of the alchemists.

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Timeline of the metric expansion of space, where space (including hypothetical non-observable portions of the universe) is represented at each time by the circular sections.

Over the course of the 19th century, the word "science" became increasingly associated with the scientific method itself as a disciplined way to study the natural world.

It was during this time that scientific disciplines such as biology, chemistry, and physics reached their modern shapes.