A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...

The paper clip is more dense than water but can rest on the surface of the water because of the water's surface tension. Evidence of water's surface tension can be seen where the water strider's legs ...

Surface tension is an important factor in bacterial growth, morphology, and probably in cell division, and to a less extent in the motility of bacteria, and their ability to retain Gram's stain.