The Power Rangers command center is a real building located in a California University.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
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