An English man, French, Italian and German are standing at the side of a street watching a street performer.
The street performer noticed that they all have poor eye sight so he asked them whether they can see him and they responded: "Yes" "Oui" "Sì" "Ja"
Authore:Melox94Jeremias B. RichterBorn 10 Mar 1762; died 4 Apr 1807 at age 45.Jeremias Benjamin Richter was a German chemist who discovered the law of equivalent proportions. He studied chemistry in his spare time while in the Prussian army (1778-1785) and afterwards while earning a Ph.D. in mathematics (1789). Richter was much influenced by Immanuel Kant, whose lectures he may have attended, in the contention that science is applied mathematics. Richter looked for mathematical relationships in chemisty, convinced that substances reacted with each other in fixed proportions. He showed such a relationship when acids and bases neutralize to produce salts (1791). Thus he was the first to establish stoichiometry, which became the basis of quantitative chemical analysis. He died of tuberculosis at age 45 years. |
