A measure of how effectively the filter removed flavor taints, along with the resulting odor taints, that CR added to plain water with minimal intrinsic flavor and odor (the "control" water).

There has been much discussion about whether or not fluoride in water is beneficial and safe to consume. Ingesting this naturally-occurring mineral can be extremely helpful in preventing cavities ...

Researchers have discovered two sets of ancient wave ripples on Mars, signatures of long-dried bodies of water preserved in the rock record. Wave ripples are small undulations in the sandy shores ...