Some people have yellow in their eyes, did you know that?
"giel", Dutch "geel", German "gelb", and Swedish and Norwegian "gul". According to the Oxford English Dictionary, the oldest known use of this word in English is from "The Epinal Glossary" in 700.
Science and nature.
Science and nature Optics, color printing, and computer screens.
Yellow is found between green and orange on the spectrum of visible light. It is the color the human eye sees when it looks at light with a dominant wavelength between 570 and
to defend yourself, if necessary. You use your eyes and ears, and realize that "I may have to shoot today". You don't have to be armed in this state, but if you are armed you should be in Condition Yellow. You should always be in Yellow whenever you are in unfamiliar surroundings or among people you don't know. You can remain in Yellow for long periods, as long as you are able to "Watch your six." (In aviation 12 o'clock refers to the direction