Welcome to the 86th 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:
"An experiment is a question which science poses to Nature and a measurement is the recording of Nature's answer." ~ Max Planck

Geology: Geology and Civilization Part 5: The Mightiest Minerals

Original post by @mountainwashere

Donald Trump has started a trade war he's literally incapable of winning. Right now, China has an economic trump card (pun intended) that can't really be beaten by anything that the United States can bring into play. That card? Rare earth elements.

Rare earth elements, or REEs, are a group of 17 metallic elements with numerous industrial and commercial uses. They're used in cancer treatments, glass, computers, cellphones, guided missiles, ceramics, speakers, magnets, lasers, nuclear reactors, spark plugs, x-ray machines, and more. A Toyota Prius contains about 25 pounds of REEs. Industrial civilization literally cannot function without them, and China controls between 92 & 97% of the world's supply.

Ecology: Finding the Real Nemo: Ecology of Sea Anemones and Anemonefishes

Original post by @xaydtrips

Finding Nemo If there was one fish species most kids around the world would know, it would definitely be the clown fish. Thanks to the award-winning, top-grossing, animated film, Finding Nemo.
Amphiprion melanopus, taken at Panagsama Reef, Moalboal, Cebu, Philippines > But let's cut to the chase. The image of Nemo that the film introduced to us is actually a real individual species of fish. Apparently, it isn't what marine biologist would regard to as the clown fish species. If at all, Marlin and Nemo are actually false clown fishes There is no need to fuss, however, because English or common names are not the scientific basis in identifying individual species. The t...

Archeology: Ancient Knowledge: The Rediscover of the Egyptian Language - Rosetta Stone.

Original post by @josalarcon2

Ancient Knowledge: The Rediscover of the Egyptian Language - Rosetta Stone.

Hello steemians, if you had the opportunity to read my post you may have realized that one of my greatest hobbies are history and archeology. The knowledge that we have now acquired about extremely ancient and millenarian civilizations such as the Egyptian or the Sumerian is perhaps one of the things that I love the most and is that being able to witness how most of these discoveries have been carried out thanks to fortuitous events is incredible. One of the facts that has caught my attention is how today's modern civilization, after having almost completely discarded the Egypt...

History: The Tyrant and The Great Pyramid Builder - Khufu

Original post by @wdoutjah

Yesterday, I posted a brief preview of the great pyramids of Egypt. Most of us have heard the stories of how these pyramids are built but I bet only a handful knows of the who's who in the construction of these great and historic structures. Among the discovered pyramids in Egypt, the pyramids that can be found at Giza are the most popular.The pyramid complex in the Giza Plateau is the biggest and most complex in all discovered pyramids in Egypt and thanks to the ingenuity of the great ruler behind this magnificent structure, Pharaoh Khufu. He is widely known by his hellenized name Cheops . According to historians, his full named is Khnum-Khufwy, which translates to Khnum Protects ...

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