Why does Alaska really have long days in some times of the year and really short days at another time?

While seasonal changes in daylight experience most of the country, the polar regions are experiencing more extreme changes because of their places in relation to the sun during winter and summer. The Earth's axis or tilt is responsible for the extraordinary periods of Alaska and Antarcticas of extended hours of daylight and darkness.

You want to see why: Imagine a tennis ball with a long needle passing through the center from top to bottom. The needle spreads both "poles" and creates axes. The black line that leads the ball circuit indicates the "equator" of the ball. Now imagine roughly a circular track to follow the ball and tilt the axis of 23.5 degrees towards the outgoing track, so the ball is slightly tilted. Finally place the light source in the center of this imaginary track.

When the ball moves around the track, its axis remains solid, although it moves around the track, its inclination, due to the central light (the sun) changes. At one point along the track, the North Pole increases the exposure to the light, tilted inwards, towards the light. At the opposite end of the orbitateThe same northern area is directed from the light source with the South Pole exposed "inward".

This tendency of Earth is what creates our seasons, and is also responsible for long summer days on Alaska. When the North Pole is tilted inwards to the sun, the area receives an extended exposure to the sun. From the point of view of someone standing on True North on the summer solstice, the sun raises high into the sky and then the indictment's horizon without setting it up. The extended exposure to sunlight during the summer season allows the region to maintain more heat. The shadows are shorter because the sun is a higher direction.

The opposite occurs at the South Pole in Antarctica. Jie, the region is inclined from the sun, so the sun's solstice will never lose horizons. In remote areas further from "True South", where the sun increases in the sky for a short time in the sky in the sky, the angle of the sun is very oblique. This creates longer shadows, another atmospherericky filtering and weaker radiation or heat. So, when Alaska experiences endless summer days full of direct light, heat and heat, the deserted Antarctica is immersed on the days of almost overall darkness and weak sunlight. On the contrary, when Antarctica sees summer, Alaska has a cold. Thanks to its unique location, the winter and summer season is a fascinating experience in Alaska.

In spring and autumn, the ground axis is aligned along its orbital path, rather than towards the sun or far from the sun. So the sun is most directly on the equatorial areas or in the center of the Earth. We have 12 hours and 12 -hour nights in sunlight, which these seasons refer to 21st and September21. For every day that passes in spring or autumn, the days will start to extend in one hemisphere and shorten in the other.

Some people mistakenly attributed the seasons of the elliptical orbit of the Earth, believe the closer the Earth to the Sun, the warmer the season. In fact, the Earth's orbit is almost circular and a small deviationIt is not enough to cause the seasons.