query: What is the cause of the surface tension of the liquids?
positive_passages.docid: 21603
positive_passages.text: Why is surface tension parallel to the interface?
negative_passages.docid: 36773
negative_passages.text: Why do wet objects become darker?
negative_passages.docid: 151549
negative_passages.text: Why can't transverse waves travel through a liquid?
negative_passages.docid: 65476
negative_passages.text: Is it possible to have a Gas heavier than a liquid?
negative_passages.docid: 114464
negative_passages.text: Why do some powders clump in hot water?
negative_passages.docid: 92586
negative_passages.text: Does buoyant force vanish if there is no liquid below an object?
negative_passages.docid: 118861
negative_passages.text: Does an object need fluid under it to float?
negative_passages.docid: 145148
negative_passages.text: Fluid Pressure: The Collision Model - Approximation or Truth?
negative_passages.docid: 6608
negative_passages.text: Why do rain waves form and what is their connection to the texture of the surface they're on?
negative_passages.docid: 42898
negative_passages.text: Why is water clear?
negative_passages.docid: 7860
negative_passages.text: Why do floating water drops form spheres?
negative_passages.docid: 120159
negative_passages.text: Dependence of fluid pressure being on height and not mass
negative_passages.docid: 48218
negative_passages.text: When a drop of water falls into water, where do the splashes come from?
negative_passages.docid: 10936
negative_passages.text: Pressure of 2 immiscible liquids of diffrent density in a u tube
negative_passages.docid: 32519
negative_passages.text: No-slip boundary condition for viscous fluids
negative_passages.docid: 153799
negative_passages.text: Why is liquid a countable noun?
negative_passages.docid: 135566
negative_passages.text: What causes this corkscrew-shaped object to rise up in a stream of water falling down?