The answer is a telegraph.
Especially known as the creator of the incandescent lamp, Thomas Edison was responsible for several devices important to the trajectory and development of mankind.
<u>One of the earliest inventions that made Thomas Edison famous, the phonograph was the first machine capable of recording and reproducing sounds.
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The telegraph breakthrough occurred while Edison was trying to improve the telegraph transmitter when he realized that the movement of the paper tape through the machine produced a noise that resembled spoken words when played at high speed.
Was more focused on manufacturing, whereas the southern colonies focused on agriculture.
<span>Since the decision of the
Speaker of the House, John William McCormack, was to ask the high
chamber member Adam Clayton Powell Jr. not to take an oath, because of
the previous scandal in which Powell had been involved; If
the jury had decided in favor of Speaker McCormack, the way of operating
in the congress would have been questioned, since only one member could
be expelled according to what the constitution says, and not by the
decisions of the speaker. <span>The scope would have been very
large if it failed in McCormack's favor, giving a sense of illegality or
favoritism, and voters would feel that their representatives were not
respected.</span></span>
First, both Mary Beth Tinker and John Tinker are suspended from school; as a result, the Tinker family sues Des Moines Community School district. The Court judgement is in favour of the Des Moines school district; the Tinker family appeals the ruling; The appelate Court of Appeals also rules in favour of the Des Moines school district. As a consequence the Tinker family appeal to the Supreme Court; after hearing the case, the Supreme Court finally ruled in favour of the Tinkers.
