Replace the question mark with a number
[2497] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 177 - The first user who solved this task is Donya Sayah30
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 177
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
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Satellite

In 1965, the first commerical telephone conversation over a satellite took place over Early Bird I between America and Europe. It had capacity for 240 voice circuits or one black and white TV channel. Positioned to serve the Atlantic Ocean region, Early Bird provided commercial communications service between North America and Western Europe. It exceeded its 18 months designed in-orbit life by 2 additional years. (It was later renamed as Intelsat I.) By 1 Jul 1969, three Intelsat satellites in geostationary orbit provided full global coverage. Only 19 days after Intelsat III became operational, Neil Armstrong and the Apollo 11 crew made their historic first landing on the moon, watched by 500 million people back on Earth.
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