spock s brain is the first episode of the third season of the original science fiction television series star trek first broadcast september 20 1968 it was the first episode to air after nbc moved the show from 8 30 p m to 10 p m on friday nights it was repeated july 8 1969pock s brain is the first episode of the third season of the original science fiction television series star trek first broadcast september 20 1968 it was the first episode to air after nbc moved the show from 8 30 p m to 10 p m on friday nights it was repeated july 8 1969
terra firma. Terra firma is a Latin phrase, literally meaning firm land.. Nervous flyers are generally overjoyed to put their feet back on terra firma after a rough airplane flight.
Black piedra and white piedra. Piedra, meaning stone in Spanish, is an asymptomatic fungal infection of the hair shaft, resulting in the formation of nodules of different hardness on the infected hair.hite and black piedra should be distinguished from each other. It can be noted that black piedra as compared to white piedra, presents a harder nodule that adheres to the hair shaft. Piedra can often be confused with pediculosis or lice infestation.