Antonio Meucci (Florence, April 13, 1808 – October 18, 1889) was an Italian inventor. He invented of one of the first types of telephone developed a voice communication apparatus in 1857. In 2002, the United States House of Representatives ruled that he invented the first working telephone, although Alexander Graham Bell was first to patent it. (From Wikipedia)
The same thing happened to our Alexander Popov. On March 24, 1896 he showed how to use electromagnetic radio waves, but did not apply for the patent for his invention. When Guglielmo Marconi ( an Italian inventor,electrical engineer and a good businessman as well) was twenty years old, he learned of the experiments of Hertz, Popov, Lodge, Bose, and Tesla. On June 2, 1896, that is, two months and eight days after the first broadcast of Popov, he applied for the patent for so to say his invention...
'Who invented the telephone?' is correct. You would only use 'did' for emphasis. For example 'If it wasn't Alexander Graham Bell, then who did invent the telephone?
As a native English speaker I sense a slight difference in meaning between изобрести and придумать, since thanks to the example above about law, it's clear laws are not invented, but 'thought up'..
Придумать - to think sth up, to come up with, to make up
Изобрести - to invent
Hope that helps.
Because in this case we are talking about a known, and therefore definite, object. It’s the same as saying, ‘we shouldn’t reinvent the wheel’. Since something has been invented it is assumed to be known. If we were to use ‘a’ (indefinite), it could mean any phone (and immediately we need more information). Compare: “Apple invented the smartphone.” “Apple invented a phone that allowed people to interface with a large number of powerful applications via a touchscreen while retaining core functionality.” Hope that helps.