Halo Stars are the <span>very old and dispersed </span>stars bordering the outer reaches of Segmentum Obscurus.<span>
Halo stars observed in the galactic disk are easily detected because they </span>move at an angle across the disk.
The answer is - wavelength.
As the wave approaches the shore and it reaches shallow waters it's characteristics start to change. When the wavelength is half of the water depth than the bottom of the wave starts to drag on the ocean floor. As it starts to do this the wave starts to slow down at it bottom as it approaches the beach but the upper part of the wave maintains its initial speed. Because of this the wave becomes longer. Once it reaches the shore it crashes on it and falls apart.
Turks when they migrated from Central Asia had to travel and south of the mountains. Klans went north formed countries like Finland, Hungary. klans went south ended up in the Middle East.