What will be the missing number?
[2343] What will be the missing number? - Solve this number puzzle. What will be the missing number? (6, 15, 28, 45, ??) - #brainteasers #math #riddles - Correct Answers: 179 - The first user who solved this task is Djordje Timotijevic
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What will be the missing number?

Solve this number puzzle. What will be the missing number? (6, 15, 28, 45, ??)
Correct answers: 179
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Is it a good baby?

A three-year old walks over to a pregnant lady while waiting with his mother in a doctor's surgery.

"Why is your stomach so big?" he asks.

"I'm having a baby," she replies.

"Is the baby in your stomach?" he asks, with his big eyes.

"Yes, it is," she says.

"Is it a good baby?" he asks, with a puzzled look.

"Oh, yes. A really good baby," the lady replies.

Shocked and surprised, he asks: "Then why did you eat him?"

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Phototransistor

In 1950, the invention of the phototransistor was announced. This was a transistor operated by light rather than electric current, invented by Dr. John Northrup Shive of the Bell Telephone Laboratories at Murray Hill, N.J. It used a tiny chip of germanium, a semiconductor material, but only a single collector wire. The tip of this wire rests in a small dimple ground into one side of the germanium disk. At this point the germanium disk is only three thousandths of an inch thick. Light focussed on the opposite, un-dimpled side of the disk can control the flow of current in the wire, thus making a control device similar in function to a photo-electric cell.
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