Majority of present day astronomers would tell you that Galileo Galilei is the most influential person in the field of astronomy to have ever lived. He used scientific methods to find out how the universe works and with his contribution to observa...Biography-on-The-Astronomer-Galileo-and-His-Contribution-to-Astronomy …

Leonardo Pisano which translates to Leonardo of Pisa in English is the original name of Leonardo Fibonacci who was born around 1170 and died after 1240 (perhaps in 1250). Fibonacci was Leonardo Pisano’s nickname. He is also known as Leonardo Pis...Life-and-Contributions-of-Leonardo-Fibonacci …

Demand and Supply            Supply and interest is maybe a standout amongst the most basic ideas of mass trading and it is the spine of a Macy’s Company economy. Interest alludes to the amou...Demand-and-supply-curves-of-Macy's,-Inc.-(M)-company- …