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
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.
In practice
In a science class discussing the periodic table and the potential for new elements.
No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.
The most all penetrating spirit before which will open the possibility of tilting not tables, but planets, is the spirit of free human inquiry. Believe only in that.
It is the function of science to discover the existence of a general reign of order in nature and to find the causes governing this order. And this refers in equal measure to the relations of man - social and political - and to the entire universe as a whole.
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.
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.
True science teaches us to doubt and, in ignorance, to refrain.
If you get asteroids about a kilometer in size, those are large enough and carry enough energy into our system to disrupt transportation, communication, the food chains, and that can be a really bad day on Earth.
I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence.
Physics has a history of synthesizing many phenomena into a few theories.
I believe there are no questions that science can't answer about a physical universe.
God is an ever receding pocket ofο»Ώ scientific ignorance.
Subscribe for the occasional hand-picked quote. No noise.