On the heels of President Barack Obama’s March 9 order to use public monies to support embryonic stem cell research,¹ another source of stem cells has become available—blood. Blood would be an ideal supplier for stem cells because it is a renewable tissue and harvesting blood components does not end life.

New research has provided interesting insights into brain activity associated with human morality. The study, conducted at the University of Southern California, focused on the uniquely human emotions of admiration and compassion.

Chimps are physically stronger than humans, as demonstrated in recent national news when a chimpanzee severely mauled a Connecticut woman. Police were forced to shoot and kill it after its owner failed to subdue it with a knife from her kitchen.¹

Evolutionary anthropologists once thought that stone knives were developed in the late Stone Age, around 40,000 years ago. That figure was later revised to 200,000, around the Middle Stone Age, when stone blades were discovered in lower strata.

A major achievement for design engineers is building precise control mechanisms for active processes. Lives depend on the precision in which certain processes are maintained, such as the manufacture of drugs.