DMITRY MENDELEEV PUBLISHED HIS PERIODIC TABLE 150 YEARS AGO

DMITRY MENDELEEV PUBLISHED HIS PERIODIC TABLE 150 YEARS AGO

Russian chemistry professor Dmitri Mendeleev published his periodic table in 1869. Mendeleev’s table, dated March 1 1869, was his first published version. He constructed his tables by listing the elements in rows or columns in order of atomic weight and starting a new row or column when the characteristics of the elements began to repeat.

CAPTAIN JAMES COOK’S 290 ANNIVERSARY

CAPTAIN JAMES COOK’S 290 ANNIVERSARY

James Cook was born on 27 October 1728 in a small village near Middlesbrough in Yorkshire. His father was a farm worker. At the age of 17, Cook moved to the coast, settling in Whitby and finding work with a coal merchant. In 1755, Cook enlisted in the Royal Navy, serving in North America where he learnt to survey and […]

KING TUT’S TOMB DISCOVERY 195 YEARS AGO

KING TUT’S TOMB DISCOVERY 195 YEARS AGO

On November 4, 1922, British Egyptologist Howard Carter discovered the tomb of Tutankhamun in the Valley of the Kings, Egypt. Tutankhamun, nicknamed King Tut, was an Egyptian pharaoh who ruled from 1333 BCE (when he was just nine years old) until his death in 1323 BCE. After he died, Tutankhamun was mummified, according to tradition, and buried in a tomb […]