Ancient Egyptians discovered prosthetic medicine

The first prosthetic evidence (two technical foot toes) were constructed in ancient Egypt, according to the magazine "The Lancet".  The evidence found of the two toes, dated before the 7th century B.C. show how they were used not only to complete the physical integrity of the mummy but actually for the better walking process of the patient. 

Experiments took place in order to identify the usefulness of the prosthetic parts, which gave positive results. Evidently this part of medicine (i.e. prosthetic toes) finds its origins in Egypt before the 7th century B.C., whilst a prosthetic leg dated back to the 4th century B.C., found in a Roman tomb in Santa Maria di Capua, was until now considered the most ancient prosthetic limb. 

Waiter Robots

On this blog I wrote here about the robot teachers in South Korea. Now a new invention has produced the waiter robots in a local restaurant in Eastern China, where they are responsible for waiting and entertaining the customers. They always serve with a smiley face, they never loose their temper (especially with demanding customers) and of course they never expect a tip. Whilst the customers eat their food they also enjoy the robot's dance, which dances to the rhythmical eastern background music.

The question is what do people prefer? A human who has his ups and downs or a neutral robot that merely repeats what it has been programmed to do. What happens when a special circumstance occurs? Then do they call for the human to resolve it? Modern Technology has achieved many things, however some technological inventions are unnecessary.