The Limited Times

Now you can see non-English news...

Phlogiston, and chemistry found the "flame element"

2022-08-04T15:36:37.269Z

IN THE ATTIC OF SCIENCE (5/6) - For its proponents, phlogiston was present in all bodies and escaped during combustion. But the Lavoisier balance told the opposite…



How are diseases born?

What is at the center of the Earth?

What is fire?

Throughout history, man has tried to explain the world to himself…

and he has often been wrong

.

Le Figaro

tells you about some of the trial and error that made science.

"You do

n't have to understand chemistry, you don't have to know its history, to have (…) this pretentious and ridiculous disdain for the age of alchemy"

, wrote the German Justus von Liebig in the middle of the 19th century in his

Letters on Chemistry

.

Likewise, he continues, it is

“out of ignorance”

that one despises

“the second period of chemistry, called the period of phlogiston”.

This phlogiston (from a Greek word meaning "inflammable") nevertheless seems straight out of old alchemists' retorts: it would be a "flame substance" contained in all bodies, and escaping from them during combustion, according to a theory developed in 1697 by the German physician and chemist Georg Ernst Stahl.

He borrows it from his master, Joachim Becher...

This article is for subscribers only.

You have 83% left to discover.

Pushing back the limits of science is also freedom.

Keep reading your article for €0.99 for the first month

I ENJOY IT

Already subscribed?

Login

Source: lefigaro

All tech articles on 2022-08-04

You may like

News/Politics 2022-08-18T09:12:10.048Z

Trends 24h

Tech/Game 2022-09-30T14:48:48.333Z

Latest

© Communities 2019 - Privacy