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Why is James Watt famous?
That my dear friend is because he was a miraculous inventor. He helped create one of the firs ever working steam engines. -Dylan the 14 year old
Who invented the vacuum tubes and when?
Vacuum tubes were invented on November 16, 1904. The inventor was British engineer, John Ambrose Fleming. He died in 1945 at the ripe old age of 90.
Why is your two year old not talking yet?
Probably because he/she isn't ready to verbalize his/her feelings yet. Thomas Edison, the inventor of the light bulb, didn't speak until he was about three years of age.
How old was the inventor of the ballpoint pen?
A Hungarian named Laszlo Biro is generally credited with inventing the modern ballpoint pen.Biro was born in 1899. He showed an early version of the pen at an international fair in 1931, when he was 32 years old.The first patent on a ballpoint pen for marking leather was filed in 1888 by Kayleigh Loud but was not good for writing on paper.
Who invented the physical model?
By excavations in Egypt archaeologists found a approximately 4000 year old physical scale model of a temple.But the inventor of the principle of physical models cannot be named, becauseit is a simple principle and it is very likely that physical models where used long before the time the oldest finding of one model is dated, and long before writing was invented.
How old is Betty James the inventror of the slinky?
She died on November 20, 2008, in Philadelphia, Pennsylvania),
How old is James Dyson?
UK inventor James Dyson is 70 years old (birthdate May 2, 1947).UK physicist James Dyson was 75 years old when he died on January 22, 1990 (born December 10, 1914).
How old do you have to be to use a slinky?
It depends on what your parent or guardian thinks.
Can you be an inventor at 10 years old?
You can be an inventor at any age.
How old is Betty Ong?
Betty Ong is 54 years old (birthdate: February 5, 1956).
How old is Betty Johnson?
Betty Johnson is 80 years old (birthdate: March 16, 1931).
How old is Betty Thomas?
Betty Thomas is 63 years old (birthdate: July 27, 1948).
How old is Betty Heidler?
Betty Heidler is 28 years old (birthdate: October 14, 1983).
How old is Betty Williams?
Betty Williams is 68 years old (birthdate: May 22, 1943).
How did elizabeth betty zane die?
betty zane died of old age
How old is Betty White 2013?
Betty White was 23 years old in the year 1945. She was born on January 17, 1922.
How old is Betty Dodson?
Feminist author Betty Dodson is 88 years old (birthdate: August 24, 1929).
