Such questions exercised physicists greatly in the decades after Dmitri Mendeleev introduced his periodic table of the chemical elements in 1869. They received new impetus around the turn of the ...

Advertisement In 1869, chemist Dmitri Mendeleev introduced his concept of a periodic table of elements at a meeting of the Russian Chemical Society in St. Petersburg. In 1912, Oreo cookies were ...

In 1869, chemist Dmitri Mendeleev introduced his concept of a periodic table of elements at a meeting of the Russian Chemical Society in St. Petersburg. In 1912, Oreo cookies were first introduced ...

In this month's prospect report, we will focus on Utah's embarrassing riches of defensive prospects by checking in on Yaroslavl Lokomotiv's Dmitri Simashev, the Tucson Roadrunners' Artem Duda ...

And even though there are other scientists who made contributions, it is Russian chemist and inventor Dmitri Mendeleev’s name that is always at the forefront. Mendeleev was the youngest of ...

At the middle of the 19th century, 63 chemical elements were known to science. Before Mendeleev’s discovery, attempts at arranging them in some logical way were made by Johann Doebereiner (1829 ...