Sunday, January 3, 2021

Dow isolated bromine

 Jan 04 : Dow isolated bromine

This new method of electrolysis greatly simplified the process for isolating bromine (Br2). Dow became the founder of Dow Chemical Company and was a pivotal figure in developing America’s chemical industry.

Saturday, January 2, 2021

Rutherford penetrated the nucleus

 Jan 03 : Rutherford penetrated the nucleus

Upon bombarding nitrogen atoms with alpha particles, he observed the release of a proton. Patrick Blackett later discovered that this was a transmutation of nitrogen to oxygen.

Friday, January 1, 2021

Rudolf Clausius

 Jan 02 : Rudolf Clausius was born

He was one of the central founders of thermodynamics. He introduced the concept of entropy and stated the second law of thermodynamics for the first time. He also introduced concepts of kinetic theory to explain motion of gas molecules, in particular the mean free path of particles.

Jan 01 Eugène Demarcay

 Jan 01: Eugène Demarcay was born

In 1901 he used spectroscopy to analyse material that had been carefully separated from samarium magnesium nitrate and discovered the element europium (Eu). His specialist knowledge of spectroscopy also helped Marie Curie confirm she had discovered radium (Ra).