5 ms·

Yes, the history of the atomic model where it became indisputable is _quite_ recent. And before this the structure of matter was more or less a disputable myste

by fsloth 6y ago

Yes, the history of the atomic model where it became indisputable is _quite_ recent. And before this the structure of matter was more or less a disputable mystery. The atomic model became undisputable after Jean Perrin's experiments in 1908 https://en.wikipedia.org/wiki/Jean_Baptiste_Perrin https://en.wikipedia.org/wiki/Jean_Baptiste_Perrin And only after being prompted by the investigations of Einstein published in 1905 https://en.wikipedia.org/wiki/%C3%9Cber_die_von_der_molekularkinetischen_Theorie_der_W%C3%A4rme_geforderte_Bewegung_von_in_ruhenden_Fl%C3%BCssigkeiten_suspendierten_Teilchen https://en.wikipedia.org/wiki/%C3%9Cber_die_von_der_molekula... The size of this mystery gets forgotten in modern discussion - but getting to the bottom on how the world is built was among the biggest triumphs of modern world. And the people who lived before the 20th century should not be belittled for lacking this knowledge.

whatshisface 6y ago
>The atomic model became undisputable after Jean Perrin's experiments in 1908 For the people reading this who know more about science than history of science (like me), this is referring to cathode rays and experimental verification of Einstein's "constant collisions from molecules" Brownian motion model. >but getting to the bottom on how the world is built was among the biggest triumphs of modern world. We are not at the bottom yet. :)
acqq 6y ago
It wasn't that much "a mystery" , more that there were those who lived in denial, like Mach. On the positive side, much before Mach, there was obvious scientific progress. Not much later after Lavoisier: https://en.wikipedia.org/wiki/Atomic_theory#Avogadro https://en.wikipedia.org/wiki/Atomic_theory#Avogadro "Avogadro was able to offer more accurate estimates of the atomic mass of oxygen and various other elements, and made a clear distinction between molecules and atoms." (Since 1811). Mach and similar simply denied what was already discovered, often not even wanting to consider that, sticking to their beliefs. Mach was "physicist and philosopher," not a chemist. Not having a definitive proof for physical existence doesn't mean that chemistry haven't already used the concepts. Today too there are scientists who after they became prominent for some work start to spread the false beliefs, some realizing that at the moment they are too hard to disprove, even when most of the experts don't believe them. And some get more influence than it would be scientifically valid. The progress is not something automatically guaranteed, it's always the result of hard work and perseverance.

by fsloth 6y ago

whatshisface 6y ago

>The atomic model became undisputable after Jean Perrin's experiments in 1908 For the people reading this who know more about science than history of science (like me), this is referring to cathode rays and experimental verification of Einstein's "constant collisions from molecules" Brownian motion model. >but getting to the bottom on how the world is built was among the biggest triumphs of modern world. We are not at the bottom yet. :)

acqq 6y ago

It wasn't that much "a mystery" , more that there were those who lived in denial, like Mach. On the positive side, much before Mach, there was obvious scientific progress. Not much later after Lavoisier: https://en.wikipedia.org/wiki/Atomic_theory#Avogadro https://en.wikipedia.org/wiki/Atomic_theory#Avogadro "Avogadro was able to offer more accurate estimates of the atomic mass of oxygen and various other elements, and made a clear distinction between molecules and atoms." (Since 1811). Mach and similar simply denied what was already discovered, often not even wanting to consider that, sticking to their beliefs. Mach was "physicist and philosopher," not a chemist. Not having a definitive proof for physical existence doesn't mean that chemistry haven't already used the concepts. Today too there are scientists who after they became prominent for some work start to spread the false beliefs, some realizing that at the moment they are too hard to disprove, even when most of the experts don't believe them. And some get more influence than it would be scientifically valid. The progress is not something automatically guaranteed, it's always the result of hard work and perseverance.