Total Answers: 4 [Go Back]
Go outside and fill a bird bath with water.
wait for a mosquito to lay its eggs in the stagnant water.
near its feet where the water goes down a bit? That's the surface tension. It's a layer of pressure above water.
s.t., it is possible to lay a steel pin on water and watch it float. No joke; I've done it before.
wait for a mosquito to lay its eggs in the stagnant water.
near its feet where the water goes down a bit? That's the surface tension. It's a layer of pressure above water.
s.t., it is possible to lay a steel pin on water and watch it float. No joke; I've done it before.
Sat, 05 Jul 2008 16:09:03 GMT
fizyka.phys.put.poznan.pl this bug can stay on the water because surface tension. more: en.wikipedia.org
Sat, 05 Jul 2008 16:13:06 GMT
We'll use water for example.
is a bipolar molecule.
means it has a positive and a negative part.
each negative part attracts to another positive part of another molecule. It's the strength of these positive and negative attractions that creates surface tension.
is a bipolar molecule.
means it has a positive and a negative part.
each negative part attracts to another positive part of another molecule. It's the strength of these positive and negative attractions that creates surface tension.
Sat, 05 Jul 2008 16:15:28 GMT
Simply put, it is the amount of energy required (or gained) by creating a unit of surface between two boundaries (for example the amount of energy gained by adding one square inch to a puddle in a ground, here the boundary is between the water and the earth, but also between the puddle and the air) . Alternatively, it is the amount of force acting on a unit of length as it comes into contact with the surface of a new material (for example the amount of force acting on a pin to make it float when it is placed from the air on the water surface of a cup containing water with soap).
Sat, 05 Jul 2008 16:32:52 GMT
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