Assertion: reverse siphon | /r/Causes | flow
Facets:
value: from right
type: MANNER
Source sentences:
text: If it were the weight in the arms of the U-tube that causes and sustains liquid flow, then this hypothetical reverse siphon (Fig. 3) ought to work, causing flow from right to left since the left side of the tube contains more liquid and clearly must be heavier.