In one small laboratory sample, the life span of the male averaged 465 days, and that of the female was 580 days.

Laboratory samples are at times not considered to be representative and of insufficient quality, stress, pore pressure, and degree of saturation.

By 1913, after some twenty-odd thousand separate experiments, the brothers produced excellent laboratory samples of acetate continuous filament yarn.

Two-dimensional rockers use a platform that moves in a seesaw motion to create waves in liquid laboratory samples.