资讯

980 CJME1 天
From red to blue: How Saskatchewan became a Conservative stronghold
The province has long been considered one of the most reliably conservative provinces in Canada, but Saskatchewan’s political ...
Smithsonian Magazine8 天
Why Are So Few Flowers and Fruits Blue? And More Questions From Our Readers
Q: Why are more fruits and flowers red, orange or yellow than blue? —Robert L. Morrison | Poughkeepsie, New York There is actually no true blue pigment in nature. A pigment creates color by ...