The assembly line. Without the assembly line, other great inventions would not be able to be mass produced. Without this, prices of these other great inventions would be unaffordable to most people!
The assembly line, the automobile, man-made satellites, the Hubble telescope, manned space shuttles, nuclear weapons, radio, television, computers, the internet, football - these are all examples of great 20th century inventions.
Yes, yes they did. Color wasn't a 20th century invention.
The second half of the 20th century is from 12:00 on January 1, 1951 until 00:00 on January 1, 2001.
It is subjective to determine the greatest invention as it depends on individual perspectives and needs. Some may argue that the internet is the greatest invention due to its vast impact on communication and access to information, while others may consider inventions like electricity or the wheel to be the greatest for their foundational role in shaping civilization.
The invention of a Microscope.
internet
Most would consider the greatest inventions of the 20th century to be the automobile, the personal computer, and plastic.
The locomotive
The Steamboat
Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
The Steamboat
The Steamboat
The Steamboat
Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
No - acrylics were an invention of the mid 20th century.
i heard somewhere that the greatest invention of the 21st century is the internet.
the automobile