Dr. Leony
Guglielmo Marconi
Samuel F. B. Morse.
thomas Edison
In 1838 Samuel Morse perfected Joseph Henry's invention of the electromagnet. It was not until 1843 that the government funded a telegraph graph line from Washington to Baltimore.
Perfected means made perfect. Here are some sentences.He has perfected the art of cheesecake baking.She worked hard and perfected her tennis swing.Our company perfected their sales technique.
the trumpet was not perfected by one person. it was perfected over many years by many inventors
who perfected the violin? (major invented)
Robert Hooke perfected the microscope.
The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.
The Welsh archers of the late 1300's perfected the longbow.
Your Mom perfected the atom bomb.
telegraph changed to internet