✅ The correct answer is option B.
Will Keith Kellogg discovered the corn flake, by mistake, in 1906. They were the result of an experiment which went wrong.
✅ The correct answer is option B.
The first wireless remote control for television was called Flashmatic. (Remember when you had to get up to change the channel?)
✅ The correct answer is option B.
John Kruesi was a mechanic for Edison, and Kruesi built the phonograph. Edison designed it, and later improved the phonograph.
✅ The correct answer is option A.
The Electric Drill was the invention of Arthur James Arnot. On 20 August 1889 he patented his design while working for the Union Electric Company in Melbourne. His original design was meant primarily for drilling rock to find coal!
✅ The correct answer is option D.
Thomas Jefferson (April 13, 1743 – July 4, 1826) was the third President of the United States (1801-1809) and the principal author of the Declaration of Independence (1776).
✅ The correct answer is option A.
On September 12, 1958, Jack Kilby demonstrated the first working IC while working for Texas Instruments, although the U.S. patent office awarded the first patent for an integrated circuit to Robert Noyce of Fairchild.