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Boreli Dejan

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210. jubalmodine easley 16
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214. MD. FARHAN ALL MAHMUD JUAL 15
last 3 solved tasks
What is hidden in the photo?
Express result to the accuracy of 3 decimal.
There are 6 words hidden in the picture, can you find 1 of 6?

Photoelectric cell

In 1925, the photocell device was given its first U.S. public demonstration. It was shown by the Westinghouse Electric and Mfg Co at the Electrical Show at Grand Central Palace in New York. The photocell was used to count objects by acting as a sensor as each object passed through and interrupted a beam of light. The device was also utilized as a sensor to detect when a person approached a door, which opened as a circuit was activated.«

One Sunday morning William bur...

One Sunday morning William burst into the living room and said, "Dad! Mom! I have some great news for you! I am getting married to the most beautiful girl in town. She lives a block away and her name is Susan.
After dinner, William's dad took him aside. "Son, I have to talk with you. Your mother and I have been married 30 years. She's a wonderful wife but she has never offered much excitement in the bedroom, so I used to fool around with women a lot. Susan is actually your half-sister, and I'm afraid you can't marry her."
William was heart-broken. After eight months he eventually started dating girls again. A year later he came home and very proudly announced, "Diane said yes! We're getting married in June."
Again his father insisted on another private conversation and broke the sad news. "Diane is your half-sister too, William. I'm awfully sorry about this."
William was furious! He finally decided to go to his mother with the news. "Dad has done so much harm. I guess I'm never going to get married," he complained. "Every time I fall in love, Dad tells me the girl is my half-sister."
His mother just shook her head. "Don't pay any attention to what he says, dear. He's not really your father."
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