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Overflowing Surface Tension
A simple experiment using a cup, water and some coins to demonstrate the effect of surface tension.


Surface Tension
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.

What is surface tension?
SImple explanation of what surface tension is and how water molecules interact.

Surface tension science: build a raft powered by soap
An activity to try in the bathtub. It explores surface tension and all you need is scissors, styrofoam, a sponge, a toothpick, water and some soap.


Friction
Frictional resistance to the relative motion of two solid objects is usually proportional to the force which presses the surfaces together as well as the roughness of the surfaces. Since it is the ...


How do gecko lizards unstick themselves as they move across a surface?
Gecko use the Van de Waals force to stick themselves to surfaces but how do they unstick themselves. This article provides the answer.