Scientific observation – history of science
Black-eyed Susan (the black in the middle is the seeds) Before people had any idea why anything happened, or how, they could at least find out what happened. People watched plants grow. [...]
Black-eyed Susan (the black in the middle is the seeds) Before people had any idea why anything happened, or how, they could at least find out what happened. People watched plants grow. [...]
Chinese astronomy: A Chinese star chart possibly dating from the 600s AD, during the T'ang Dynasty The Chinese zodiac Chinese scholars began by thinking of the stars, the sun, and [...]