1. Steel
... weaken the structure. Soon Gothic cathedrals joined the quest for height. Long, stone arms, called flying buttresses, supported the cathedral's heavy weight, allowing the walls to be filled with colorful glass windows. George A. Fuller was the first person to invent the sky scrapper. Fuller worked on solving the problems of "load bearing capacities" of tall buildings. Fuller built the Tacoma building ... ...
- Word Count: 234
- Approx Pages: 1
- Grade Level: High School