Question

in 20century who is were invented

Answer 1

Wilbur and Orville Wright, through their invention of the airplane in 1903, demonstrated that man could fly; actualizing a concept that was found earlier only in mythological stories.

Answer 2

1. 1907. Leo Baekeland invents the first synthetic plastic called Bakelite. Color photography invented by Auguste and Louis Lumiere. The very first piloted helicopter was invented by Paul Cornu.

2. 1900

The zeppelin invented by Count Ferdinand von Zeppelin.

Charles Seeberger redesigned Jesse Reno's escalator and invented the modern escalator.

3. 1901

King Camp Gillette invents the double-edged safety razor.

The first radio receiver, successfully received a radio transmission.

Hubert Booth invents a compact and modern vacuum cleaner.

4. 1902

Willis Carrier invents the air conditioner.

The lie detector or polygraph machine is invented by James Mackenzie.

The birth of the Teddy Bear.

George Claude invented neon light.

5. 1918

The superheterodyne radio circuit invented by Edwin Howard Armstrong. Today, every radio or television set uses this invention.

Charles Jung invented fortune cookies.