How to Use Coriolis Mass Flowmeters. Coriolis mass flowmeters measure the mass flow of liquids, such as water, acids, caustic, chemicals, and gases/vapors. Because mass flow is measured, the measurement is not affected by fluid density changes. Be particularly careful when using Coriolis mass flowmeters to measure gas/vapor flows because flow rates tend to be low in the flow range (where accuracy is degraded).
For other uses, see Ophiuchus (disambiguation). Ophiuchus /ÉfiËjuËkÉs/ is a large constellation located around the celestial equator. Its name is from the Greek á½ÏÎ¹Î¿á¿¦ÏÎ¿Ï Ophioukhos; serpent-bearer, and it is commonly represented as a man grasping the snake that is represented by the constellation Serpens. Ophiuchus was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern constellations.
In his online Bibliotheca Arcana, John Opsopaus includes several articles on The Ancient Greek Doctrine of the Elements. Here, he discusses theories related to the four elements as developed by both Empedocles and Aristotle.