Skip to main content

Mendeleev periodic table


Mendeleev periodic table

Originally shared by Vladimir Pecha

Today in 1907: Dmitri Ivanovich Mendeleev died (8 February 1834 – 2 February 1907).

Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered.

https://en.wikipedia.org/wiki/Dmitri_Mendeleev

Comments

Popular posts from this blog

#OTD in 1886

#OTD in 1886 Josephine Cochrane, a woman inventor from Shelbyville, Illinois, USA was issued the dishwashing machine patent, which also ended up becoming the first commercially successful dishwashing machine. Interesting Facts about Ms. Josephine Cochrane: 1. Born as Josephine M. Garis in 1839, in Ashtabula County, Ohio. 2. Josephine was raised in Shelbyville, Illinois, and got married to William Cochran in 1858. 3. Josephine was also the grand daughter of John Fitch, who was known for steam boat related inventions. 4. Josephine was a socialite, and had a prosperous early married life with her husband. 5. But, lost her husband to alcohol at the age of 44 with a family debt of around $1500+. 6. Josephine's family situation along with her prior interest to develop dishwashing machines to relieve housewives from washing dishes after a meal drove her towards developing the first commercially viable machine. 7. Though the dishwashing machine was not a household item during her times, it...

OTD: Neptune's largest moon, Triton, discovered on this day in 1846 by Astronomer, William Lassell

OTD: Neptune's largest moon, Triton, discovered on this day in 1846 by Astronomer, William Lassell

#OTD #tv #television #baird #testing #test

#OTD #tv #television #baird #testing #test John Logie Baird had his first testing of a working television (TV) on October 2, 1925