Most drop towers require child riders to exceed a minimum height; limits vary widely depending upon the nature of the tower, with a 30-foot (9 m) tower for smaller children from 37 inches (95 cm) tall, and a 115-foot (35 m) tower having a 51-inch (130 cm) restriction.
How many sheet of copy paper equal an inch? Using good quality 24 pound paper, a one inch thick stack is about 215 sheets. Using the more common 20 pound paper - popular in schools - one inch is about 250 sheets. Edit
1 Working papers are divided into two age groups (14-15 and 16-17): 2  14-15 year olds - Your working papers are blue. If you are 14 and 15 years old, you are issued these working papers because you are not allowed to work in a factory.  16-17 year olds (in school) - Your working papers are green.