However, there are some major trends that have remained a constant thread throughout its lifetime.
Clayton realized that supernova radioactivity, a constant thread of his career, made that chemical surprise possible.
One of the wonderful things about cricket is the constant thread running through the years.
During the hour, surfing emerges as the constant thread linking them together and giving the young Blakemore his real inheritance from his father.
A couple of blocks from Paramount Studios, the home ties together the two constant threads in her life: religion and show business.
Health care is to be a constant thread, introduced in several panel discussions and reinforced in addresses by the major speakers.
Music is a constant thread in Coe's oeuvre.
"The constant thread in all these situations is we've been less willing than other clubs to guarantee longer contracts," Epstein said.
The constant, dearest thread in her life was sister Sarafine.
Wherever bodies are banging and men refuse to give up the baseline, Harter is not far behind, a constant thread in the league's defensive boom.