The Wheel,The arches, and one more thing but i forgot.
Shoes, ice-cream, foods, snacks and fireworks.
Elijah McCoy invented an automatic lubricator for oiling the steam engines of locomotives and boats, a folding ironing board, and a lawn sprinkler.
Do you mean "change"? If you're talking about "simple machines", the usual answers are direction (eg., with a pully), speed, and force.
garrant morgan
Cynthia Garabaldie
language, tool, technology
They are language, tools, and technology.
they had a surplus in grainGrain and oil
the compurter mouse windows and hypermedia
Three environmental challenges to the Sumerians were:Unpredictable floodingNo natural barriers for protectionThe natural resources were limited for the Sumerians.
The Portuguese invented the three-masted ship in the 1400's. These type of ships replaced the ships that had an oared galley. Three-masted ships were easier to steer.
The three things Thomas Edison invented are... 1. Electric lighting 2. Sound recording 3. Motion pictures
The jet plane was invented for easier and faster transportation. This plane was also invented and created for military purposes.
Sumerians invented cuneiform to keep track of business dealings.Sumerians used cuneiform to trade with people who lived in lands that were hundreds and even thousands of miles away.People used cuneiform to keeps records of new ideas and easily pass them from generation to generation.
it's easier to lift things, u wont harm any bones in your body, and it is easy to work a lever
Cheese, Projectors, And Paper
mouse & cording keyboard