This video explores the history and impact of elevators over the past 150 years. From their invention by Elijah Otis in the 1850s to their role in shaping modern cities and enabling the construction of skyscrapers, elevators have...

Learn about compound interest. We will look at how to determine the final value, initial value, interest rate and years needed. We will investigate problems compounded continuously, daily, weekly, monthly, quarterly and yearly. These...