Around the world, reindeer are known as Santa Claus' trusty sleigh-pulling team. All the stories say that reindeer fly long distances to help the father of Christmas deliver presents to the right ...

Every year on Christmas Eve, nine reindeer pull Santa’s sleigh through the sky so he can deliver presents to children throughout the world. Their names are Dasher, Dancer, Prancer, Vixen ...

The speed of movement can be calculated from the change in color. If we look at the 'red-nosed reindeer' pulling Santa's sleigh, when the reindeer approaches, the wavelength becomes shorter and ...