not all but only a few.........
Thomas Edison recited the nursery rhyme "Mary Had a Little Lamb" to test his invention of the phonograph in 1877, not in 1872.
To be the very best that noone ever was. To catch them was his real test, to train them was his cause.
Yes i saw it lol
Thomas Edison tested over 6,000 different materials for the filament of his light bulb before finding one that worked effectively.
Thomas Edison's success in designing the light bulb can be attributed to his persistence in experimentation and innovation. He conducted thousands of experiments to find the right materials and design, eventually leading to the creation of a commercially viable light bulb. Edison's ability to continuously test and refine his ideas played a crucial role in his success.
no
Thomas Edison invented the electric light bulb. The first successful test of his invention was in October of 1879, during which the light lasted for over 13 hours. He acquired the patent in 1880.
Thomas Edison, the one who used his own creation. That's the best way to test it and if he invented it, he deserved to have the use of it before other people as well.
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at that time he was working with another inventor who owned a lab.Thomas used to work in that lab.When he was testing that helicopter he exploded the lab. because of agression the owner slapped him on the ear and thomas became deaf from his left ear.
Mary had a little lamb was used to test the Edison phonograph in l877 Thomas Edison, inventor here. curiously early Edison phonos did NOT use electricity but were clockwork drive and were intended to be used more like modern tape recorders, being able to record as well as play back, First cylinders, then discs, then Disk Jockeys.
People test animals in labs.