No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.
Dmitri MendeleevRead
We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75.
Interpretation
What this quote means
Mendeleev suggests that there are many undiscovered elements that will likely be found in the future.
In this quote, Dmitri Mendeleev expresses his belief in the potential for future discoveries in the field of chemistry, specifically referring to elements that share properties with known elements such as aluminum and silicon. He emphasizes the importance of scientific exploration and the anticipation of new findings that can expand our understanding of the natural world.
Themes
DiscoveryElementsChemistryScienceExploration
In practice
Example use cases
In a science class discussing the periodic table and the potential for new elements.
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The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.
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The edifice of science not only requires material, but also a plan. Without the material, the plan alone is but a castle in the air-a mere possibility; whilst the material without a plan is but useless matter.
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