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Genius Hour is a project in the classroom and sometimes in a workplace where students or/and employees are allowed to explore their own passions and wonders for a depending amount of time, usually 1 hour per week to 20% of their total class time. [1] Teachers allow students to pick a topic of their own, usually framed around an inquiry question ...
Jacobus van 't Hoff (1852–1911), an influential theoretical chemist and the first winner of the Nobel Prize in Chemistry.. Theoretical chemistry is the branch of chemistry which develops theoretical generalizations that are part of the theoretical arsenal of modern chemistry: for example, the concepts of chemical bonding, chemical reaction, valence, the surface of potential energy, molecular ...
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Contributing structures of the carbonate ion. In chemistry, resonance, also called mesomerism, is a way of describing bonding in certain molecules or polyatomic ions by the combination of several contributing structures (or forms, [1] also variously known as resonance structures or canonical structures) into a resonance hybrid (or hybrid structure) in valence bond theory.
A scientific theory is an explanation of an aspect of the natural world and universe that can be (or a fortiori, that has been) repeatedly tested and corroborated in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.
This disproves the theory of Spontaneous generation (1861) extending the rancid meat experiment of Francesco Redi (1668) to the micro scale. Charles Darwin and his son Francis , using dark-grown oat seedlings, discover the stimulus for phototropism is detected at the tip of the shoot (the coleoptile tip), but the bending takes place in the ...
If you saw Parsons' reaction to the special teams gaffe that set up Cincinnati's last-minute, game-winning TD drive, or saw his emotional postgame interview reflection on teammate DeMarvion ...
At the time the scientific community was grappling with the problem of how to bring order to the 63 elements that were now known. Mendeleev was still a student when he attended the world's first international chemistry congress – convened to settle the confusion surrounding atomic weights.