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..
South African Flag. The South Africa flag has six colors like no other national flag in the world considering the primary design colors. The colors green, black and gold are present also in the ANC flag, while the blue, red and white colors seem to refer to the Dutch and English influence.he South A frica Flag was used for the first time in 1994. The colorful flag can be seen as a symbol of the long way from disparity to unity of the South African people.