Welcome to the 94th Daily Field Note! Here you find the top post of the day, one covering each scientific field that is included by Geopolis. Since these authors put a lot of effort in writing a good post they surely deserve the extra exposure.
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Science quote of the day:
"The world keeps happening, in accordance with its rules; it's up to us to make sense of it and give it value." ~ Sean Carroll
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Original post by 
I have talked about the different sweeping hazards that arise form volcanoes. Nevertheless, every coin has two sides. And volcanoes have a good side to them as well. This is the reason why nearly 200,000 people are living on an active volcano in the middle of the ocean. In this post I quickly want to introduce a few of these benefits. The Existence of the Islands themselves. This is the first, and probably very obvious, benefit. The volcanic activity in the center of the Pacific Ocean is the only cause the islands exist. It led to the evolution of majestic volcanic mountains and beautiful beaches.
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Original post by 
At its greatest extent during the seventh century, the kingdom of Northumbria encompassed an area that stretched from the Scottish Lowlands to the Peak District and from east coast to west within those north-south parameters. Indeed, in the period AD616-670, the early Christian rulers of Northumbria were, according to Bede, 'overkings' of Britain, or Bretwaldas, exercising hegemony over English to the south as well as the neighbouring British to the west and north. However, following Aethelred of Mercia's victory over Ecgfrith in 679, Northumbrian authority south of the Humber soon began to wane, whilst in the north, Ecefrith' expedition against the Picts was an even greater disaster, ...
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"Rubber people", Olmec--that's what the Aztecs called their precursors in Mesoamerica. The Olmec lived along the Gulf of Mexico, about 3,000 years ago. They came by their name because they harvested rubber and turned it into useful objects. The most well known of these objects was a rubber ball.
This was no ordinary ball. The Olmec played a highly ritualized game in which the stakes could be life or death. The ball court on which they played was about the size of a modern football field and was lined with stone. Archeologists believe the Olmec had a powerful influence on civilizations that followed. These civilizations included the Maya and the Aztecs. Both Maya and Aztecs used rubber extensively.
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