Amedeo Avogadro

About Amedeo Avogadro

Amedeo Avogadro (1776–1856) was an Italian chemist and physicist whose high standing (HPI Rank #962) is primarily due to his foundational work in molecular theory. In 1811, he proposed Avogadro's Law, stating that equal volumes of all gases, at the same temperature and pressure, contain the same number of molecules. This crucial insight, which later led to the concept of the Avogadro constant, became fundamental to modern chemistry and the understanding of atomic theory.

Despite his historical importance, Avogadro experiences a significant internet attention gap. In 2025, his Wikipedia page garnered 108K views, resulting in an "underattention" score of -3x when compared to his historical rank. To illustrate this disconnect, a figure like Octave Mirbeau, ranked significantly less important at #522, still attracted a comparable level of attention or, conversely, a figure as important as Musa I of Mali (#244) received far less attention at just 26K views. This indicates that Avogadro's foundational contributions are not translating into commensurate modern online interest.

Interestingly, while his year-over-year interest declined by 8.3%, his recent momentum from Q1 to Q3 2025 showed a positive rebound of +18%, suggesting potential recent spikes in engagement, perhaps related to educational curriculum changes or anniversary mentions.