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The terms derive from the colours red and blue which form the extremes of the visible light spectrum. The main causes of electromagnetic redshift in astronomy and cosmology are the relative motions of radiation sources, which give rise to the relativistic Doppler effect , and gravitational potentials, which gravitationally redshift escaping ...
The national flag of the United States, often referred to as the American flag or the U.S. flag, consists of thirteen horizontal stripes, alternating red and white, with a blue rectangle in the canton bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows, where rows of six stars alternate with rows of five stars.
These details elaborate on the 1777 act, passed early in the American Revolutionary War, which specified 13 alternating red and white horizontal stripes and 13 white stars in a blue canton. Its name stems from the story, once widely believed, that shortly after the 1777 act, upholsterer and flag maker Betsy Ross produced a flag of this design.
Orange to red stars with complex band spectra, such as Betelgeuse and Antares. This corresponds to the modern class M. Secchi class IV: In 1868, he discovered carbon stars, which he put into a distinct group: [48] Red stars with significant carbon bands and lines, corresponding to modern classes C and S. Secchi class V
The blue circle around the stars represents the unity of those grand divisions. The blue bar at the edge of the flag was just a design consideration. When asked about the blue bar, Reeves stated "The final blue bar relieves the sameness of the crimson field and prevents the flag from showing too much crimson when hanging limp."
The five-pointed star also came to be widely used in military badges in the 19th century. A red star was used as the badge of XII Corps of the Union Army in the American Civil War, while VII Corps used a five-pointed star in a crescent. In 1916, a five-pointed red star was used by the U.S. Army Signal Corps' aviation section. [7]
This is why it’s so popular among organic companies such as Whole Foods, Morning Star and Tropicana. You will rarely see blue on a food label, as blue is proven to curb appetite.
The red five-pointed star is a symbol of the ultimate triumph of the ideas of communism on the five (inhabited, excluding Antarctica) continents of the globe. It first appeared as a military symbol in Tsarist Russia. It was then called the “Mars star,” reminiscent of Mars, the ancient Roman god of war. On January 1, 1827, the law was signed ...