Spark image


Zeeman effect - the splitting of spectral lines into two or more due to an applied magnetic field
zenith - a point vertically above the observer (opposite the nadir)
zero point energy - the lowest molecular vibrational energy state
zodiac - a band of sky containing the path of the Sun through the constellations
zodiacal light - a faint, hazy band sometimes seen in the west after sunset
© Keith Gibbs 2007