WHEN the available experimental values of the surface tensions of liquid metals are plotted against the reciprocals of the corresponding atomic volumes, the accompanying diagram is obtained.

The metal blob in the shaped chamber (photo) extends out to along the passage towards the counter electrode (below it on the right) under the influence of voltage, then contracts when the bias is ...

Discover the amazing properties of water's surface tension as you make metal paper clips float on water. You'll learn about the forces that hold water molecules together and how insects like water ...