PBS
Pbs: Piano Tuning and Balancing Equations
Examine how one innovator is working to improve the way concert pianos are designed and tuned. This video focuses on the balance that needs to occur in an ideally tuned piano key and explores how David Stanwood calculated the balance...
National Council of Teachers of Mathematics
Nctm: Figure This: Salaries
Use the information from the U.S. Census to determine if women will ever earn as much money as men.
Other
Ask Numbers: Measurement Conversion Calculators and Charts
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...