Explain about the reason for longer days and shorter night?

Answer 1

I wish I knew, and I wish nights were longer..so like that I can sleep more =)

Answer 2

In the course of the year, the sun in the sky follows a path (called the ecliptic) that takes it as much as 23 1/2 degrees north of the equator in June, and as much as 23 1/2 degrees south in December.

When the sun is far to the north, between March 21 and September 22, days in the Northern Hemisphere are longer than the nights, and vice versa in the Southern Hemisphere. At the other end of the year, say in December, days are shorter than the nights in the Northern, but longer than nights in the Southern.

The further from the equator you go, the more pronounced the effect becomes until, beyond the polar circles, you have midnight sun in the summer and you may have no sun at all in mid-winter.

By the way, Daylight Saving Time has nothing to do with this at all. It does not make the days longer. How could it ever do that?

Daylight Saving Time gets people to start whatever they're doing one hour earlier and finish one hour earlier. If they're used to getting home from work at 5 p.m. in winter, they start doing it one hour earlier when Daylight Time starts, so it's really 4 p.m. according to the sun, and there's an extra hour of daylight in the afternoon (and one fewer hour before 12:00, Daylight Time, in the morning).

Answer 3

The earth's axis of rotation is tiilted 23 1/2 degrees with respect to the vertical. As the earth revolves in the horizontal (ecliptic) plane in its annual path around the sun, the northern hemisphere is tilted the maximal amount (23 1/2 degrees) toward the sun on the summer solstice (21 June, the longest day of the year) and away from the sun on the winter solstice (21 December, the shortest day of the year).

On the two equinoxes -- 21 March (vernal equinox, the first day of spring) and 21 September (autumnal equinox, the first day of autumn) -- the earth's axis is neither tilted toward nor away from the sun, so there are 12 hours of daylight and 12 hours of darkness everywhere in the world.

An 18-month timeline showing length of the day, extending from the vernal equinox in 2006 (21 March) until the autumnal equinox in 2007 (21 September), is a wavy line (a sine curve) showing the longest days on the summer solstices (21 June) in 2006 and 2007, and the shortest day on the winter solstice (21 December) in 2006.

Our seasons change on the solstices and equinoxes. But for understanding long and short days, it's better to think from mid-season to mid-season. Here's how that works:

From mid-spring to mid-summer (roughly, May, June and July), the days are long and the nights are short.

From mid-summer to mid-autumn (roughly, August, September and October) the days keep getting shorter and the nights keep getting longer.

From mid-autumn to mid-winter (roughly, November, December and January) the days are short and the nights are long.

And from mid-winter to mid-spring (roughly, February, March and April) the days keep getting longer and the nights keep getting shorter.

Mid-summer occurs in early August. The three months of long days are now behind us, and for the next three months, the days will keep on getting shorter.

By the end of October (mid-autumn), we'll be having short days and long nights. That's why Halloween is when it is.

By the way, the days start getting longer again at the beginning of February. That's why Ground Hog Day (2 February) is when it is.

And to celebrate the arrival of long days at the beginning of May (mid-spring), most of the world observes May Day (1 May).

There's no corresponding "holiday" at the beginning of August when the days start to get shorter. Probably that's because people don't want summer to end.

Hope this explains it.

Answer 4

The Earth spins, which is what causes day and night. But because the Earth is tilted 23.5 degrees from it's oribital plane, it appears to wobble as it makes it's way around the sun. This wobble makes the sunlight hit the Earth not always directly on the equator. So as the Earth makes it's way around the sun, the closer you are to the Poles the greater shift in length of day occurs (depending on the time of year). So a place far south, like Houston Texas, might see an average shift of 1.5 minutes per day during certain times of the year, while Anchorage Alaska might experience a 6 minute shift at the same time.

Certainly this is hard to describe, but could be more easily visualized with a model.

Answer 5

The reason for longer days and shorter nights on Earth is because of the Earth's tilt during seasonal change. The Earth's Poles tilt towards the sun during their summers (The point of Reference is the North End. During our 'winter' its the South End's 'summer' and 'vice-versa'.) the days are longer during the 'summer' is because more of the Earth's surface is exposed to the sun, causing the 'day' to be longer and the 'Night' to be shorter.

Answer 6

The angle of the earth's tilt makes a certain hemisphere at certain times be leaning closer to the sun, so the amount of time the daylight is hitting the surface of that hemisphere is longer than the other hemisphere, making days longer on that hemisphere. When the tilt changes, the same thing happens, just exactly opposite of the way it was.

Answer 7

because there are 24 hours in an afternoon on earth the longest day could additionally be linked with the shortest night. As an aside, the longest day interior the Northern Hemisphere stands out as the comparable because of the fact the shortest day interior the Southern Hemisphere.

Answer 8

We are facing the sun right now, and get more direct rays of light than the southern hemisphere. The same reason why its warm during the summer here usually.

Answer 9

The earth is tilted with respect to the sun. THis means that when the earth leans towards the sun, the top more light, and when it leans away from the sun, the bottom half gets more light.

Answer 10

its because of the way the earth is tilted on its axis. if it was straight up and down, then the days and nights would be the same lenght, but when you tilt it, and THEN rotate, it takes longer for a perticular area to reach the originating spot

Answer 11

The Sun is the reason as it moves north & south of the Equator