In a longitudinal wave, the motion of the medium is parallel to the direction of the wave. This means that the particles move left and right which in turn makes the other particles start to oscillate.
The UNIA founded by Marcus Garvey has a constitution which defines red, black, and green as the Pan-African colours: red representing the noble blood that unites all people of African ancestry, the colour black for the people, green for the rich land of Africa..
The colors of the flag of the 28's consists of red, green, black and white. The flag is green, with a thin red line. There is also white on the flag and black. The color white symbolizes the privates who never fight, but who do womenâs work in the prisons.anigalore was devoeoped in the mines in South Africa in the late 1800's. This was developed as way for the black mine workers to communicate with one another and for the white mine owners to be able to communicate with all of the workers, without having to learn all the different languages.