Being freed of all human limitations, they acted as unchanging loadstars inspiring a search for more refined instruments.

Given the interactive character of genes and environment, one now must ask, "Are there certain specific genetic mechanisms or processes, pathological or otherwise, that determine that certain individuals so endowed (or misendowed) will be unable to live up to social and cultural expectations of performance and capability?

Digging deeper, the invention of eyeglasses is an elaboration of the more fundamental development of optics technology. The ability of a segment of a glass sphere to magnify whatever is placed before it was known around the year 1000, when the spherical segment was called a reading stone,[…].

The multimediatized story of the divinely engineered Baby Eve puts a finer point on this cultural ambivalence, revealing the dimensions not so much of a global media culture of copy as of […] .