Yearwise Discoveries

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Events 1610--------------------clue- Telescope GGt.

Galileo Galilei discovered four moons orbiting Jupiter using a homemade

   telescope in 1610.

Events 1656-------------------clue -The pendulum clock- C. H.

The pendulum clock was invented in 1656 by Dutch astronomer Christiaan Huygens.

Events 1876----------------------clue- telephone- A.G.

In March 1876, Alexander Graham Bell made the world's first telephone call. It lasted for less than ten seconds and consisted of nine words, "Mr. Watson, come here - I want to see you."  

                                      This message was addressed to the inventor's associate, Thomas Watson, who was in another room.

 Events 1877--------------------clue- phonograph- T.E

 In 1977, Thomas Edison announced his invention of the phonograph, a device that could record and play sound.

Events 1895--------------------clue- X-rays wil.R

How were X-rays discovered in 1895?

Ans-  Accidentally.

              X-rays were accidentally discovered by Wilhelm Rontgen in 1895 while he was experimenting with electricity.

Events 1908--------------------clue- TV by AL. Ei

 Albert Einstein's quantum theory of light paved the way for quantum mechanics and TV in 1908.

Events 1943----------------------clue- Ball pen by Las. B.

Ballpoint pen was invented by Hungarian journalist Laszio Biro in 1943 as a cleaner

alternative to fountain pens.

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