What am I?
[3175] What am I? - I love to dance and twist and prance, I shake my tail, as away I sail, wingless I fly into the sky. What am I? - #brainteasers #riddles - Correct Answers: 63 - The first user who solved this task is Roxana zavari
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What am I?

I love to dance and twist and prance, I shake my tail, as away I sail, wingless I fly into the sky. What am I?
Correct answers: 63
The first user who solved this task is Roxana zavari.
#brainteasers #riddles
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A policeman is on scene at a t...

A policeman is on scene at a terrible accident - body parts everywhere. He is making his notes of where the pieces are and comes across a head.
He writes in his notebook: "Head on bullevard", and scratches out his spelling error.
"Head on bouelevard". Nope, doesn't look right - scratch scratch.
"Head on boolevard..." dang it! Scratch scratch.
He looks around and sees that no one is looking at him as he kicks the head. "Head on curb."
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Invention of navigation by satellite

In 1957, two Johns Hopkins University Applied Physics Laboratory scientists tracking Sputnik found they could determine its orbit by analyzing the Doppler shift of its radio signals during a single pass. They conjectured that if a satellite's position were known and predictable, then the Doppler shift of its signals could be used to locate a receiver on Earth - thus, one could navigate by satellite. A system called Transit, was developed and from 1964 assisted the security of U.S. nuclear deterrent submarines. From 1967, this evolved into a navigation system for all nations, a forerunner of the present Global Positioning System (GPS). Transit also made key contributions to space science and technology, geodesy and health.*[Image: Transit 1B satellite]
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