Though camouflage had been experimented with in World War I, it wasn’t until the Second World War that it came into its own. In World War II colors were used on aircraft for identification as well as camouflage. All parties in both the Axis and the Allies used distinctive coloring for advantages.
Helicopters or rotary aircraft have always intrigued people. Did you know that every helicopter requires at least two rotors to fly? While there are many different types of rotors available, there is still a controversy over their placement.
Distance learning courses can be selected to cover the entire electromagnetic spectrum. This extends from distances of thousands of kilometers to a fraction of an atom. Although a fascinating subject, it is one that could frustrate without the correct electromagnetic waves distance learning courses.