Is the glass half empty or half full? shown that a speaker's choice of frame can reflect their knowledge of the environment, and that listeners can be sensitive to this information. Is the glass half empty or half full? "Is the glass half empty or half full?" is a common expression, a proverbial phrase, generally used rhetorically to indicate that a particular situation could be a cause for optimism (half full) or pessimism (half empty), or as a general litmus test to simply determine an individual's worldview. The purpose of the question is to demonstrate that the situation may be seen in different ways depending on one's point
Heberly Run load is . The acidity concentration at the headwaters of Heberly Run is 4.40 milligrams per liter and the alkalinity concentration is 5.84 milligrams per liter. The daily loads of these substances are and , respectively. Downstream of Meeker Run, the acidity concentration is 2.87 milligrams per liter and the acidity load is per day. The alkalinity concentration is 6.83 milligrams per liter and the daily load is . At the mouth of Heberly Run, the acidity concentration is 2.80 milligrams per liter and the concentration of alkalinity is 6.93 milligrams per liter. The daily loads for these substances are