1. What is the oldest engineering institution in the United States?
2. The distance to the moon varies from a perigee of 363,104 km to an apogee of 405,696 km. Express the perigee in SI units to four significant digits.
3. The sodium EM spectrum is dominated by the bright yellow doublet at 588.9950 and 589.5924 nanometers, the brighter line at the shorter wavelength. Express the bright-line wavelength in SI units to four significant digits.