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Find a famous person

Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 5,8.

Correct answers: 23

The first user who solved this task is Thinh Ddh.

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Photophone

In 1882, the photophone was demonstrated by Alexander Graham Bell and Charles Sumner Tainter. In their device, a mirrored silver disc was made to vibrate by speech from a speaking tube. Light reflected off the disc was focused by a parabolic dish onto a selenium photocell. The variations in the reflected light were converted into electrical signals carried to headphones.

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