The 12 Biggest Breakthroughs In Transportation Technology

The 12 Biggest Breakthroughs In Transportation Technology — page 3
2 WHEELS LEAD TO FASTER EASIER TRAVEL Soon after building the first roads people invented a better way to travel on them Ancient pictures show that the wheel was used as early as 3500 BCE in the Middle East Wooden disks were attached to carts People or animals pulled the carts to carry loads The first wheels were cut from wooden slabs In approximately 2000 BCE people started to make wheels with spokes The spokes connected the center of the wheel with the rim Spoked wheels were lighter and stronger They could be used to make lightweight horse drawn chariots At first wheels used four spokes then six or eight Wheels with more spokes were more stable and made for a smoother Spoked wooden wheels have been used for more than 4,000 years 6