While fibre break strength was increased with cotton boll age, it was reduced when temperature dropped.

It was the same when the pill was introduced - people feared that the whole moral fibre of society would break down if women were freed from unwanted pregnancies.

Used for testing breaking tenacity, elongation at break of single yarn made of cotton, wool, jute, core-spun yarn etc, at the same time including synthetic fibre filament, textured yarns.