As future engineers you will take measurements and carry out calculations. You may have hea saying, "Measure twice, cut once." You might have even learned the reason for this saying the if you have ever had to rebuild something because you made a mistake in measuring the dime You aren't the only one! In 1999, NASA's Mars Climate Orbiter, which cost $330 million, crashe of a measurement error in converting from one system of units to another. The purpose of this exercise is to expose you to the dimensions and units of the various funda concepts that every engineer should know. This includes length, time, mass, force, temperatur current, energy and power. In Module 3 you began learning about length- and time-related ur measurements in engineering. In the subsequent Modules, you will learn more about the rem