Thomas Alwa Edison
The microscope was the invention that made it possible for scientists to discover and learn about cells. Its ability to magnify small objects allowed scientists to observe cells for the first time, leading to the development of the cell theory in the 19th century.
it made them see deeper into the object to see what it is made of and more
Electricity
spaceship
The wheel.
Its is dell
his hardest invention was the telephone
Scientists don't invent, they experiment. Inventors invent. An invention is a thing not made yet. To make most money out of it, you need to invent something nobody has, but everybody needs. The person who invented shoelaces made a lot of money.
human beings made by god
the wheel.
Iphone 5
the cotton gin