In Iceland, 100% of domestically produced electricity comes from renewable energy.
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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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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
The US national public health institute, Centers for Disease Control and Prevention, has an actual plan in case of zombie invasion.
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