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Được nói trong 6 đoạn từ 4 kênh · B2–C1 · các dạng khác: 1800s
In the 1800s, the industrial revolution then changed that.
In the late 1800s, German scientist Ludwig Edinger compared primate and crow brains and interpreted the crow’s brain structure as primitive, dismissing their cognitive abilities.
The Earth has warmed 2 degrees since the 1800s, when the world first started burning fossil fuels in mass scale.
For centuries, the term “Viking” went unused, until the 1800s, when nationalism swept Europe, and people began invoking it to gesture at a romanticized, shared Germanic past.
Like for example, when roosting, Mexican free-tailed bats pack in at a whopping 1,800 adults per square meter.
But to cool the planet, even just by one degree Celsius, scientists estimate it could take roughly 1,800 flights every single day, each carrying 15 tons of aerosol payloads.