When oxygen was first discovered by British clergyman Joseph Priestley, in 1774, he called it...

By: vivian on segunda-feira, dezembro 11, 2017

When oxygen was first discovered by British clergyman Joseph Priestley, in 1774, he called it “dephlogisticated air.” Imagine trying to spell that on a science test!

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el/historia

• Peacock fresco at the Villa Poppaea. Notice the illusion of depth with the columns, and how the...
• Terracotta Warriors fresh from the earth, before their colors deteriorate from the exposure....
• The Viking Colony That Wasn’tL'Anse aux Meadows is (rightly) famous as the archaeological...
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