Why does the sun rise from the east?
407363
It doesn't move, the earth rotates eastward so it appears the sun rises from the east and sets in the west, so can I have my 10 points?
696951
it seems to rise in the east and set in the west, but it is really the rotation of the earth, so the sun isnt really rising or setting at all
661394
it occurs when solar radiation from the sun interacts with the magnetic field around the Earth (its strongest around the poles..so thats why theres a northern..AND southern lights...and no "Middle" lights lol)\n\ni can't wait to see it some day
376592
The sun is in a state of happy equilibrium.\n\nThere are two main forces acting on the sun....gravity and entropy.\n\nThe sun has A LOT of mass.  With all this mass, the sun has a pretty strong gravitational field, so all this mass is pulling on itself and trying to force it to fall toward the center.  In other words, the sun's own weight is trying to collapse it.  The more the sun shrinks and collapses, the more it heats up and the pressure inside increase (as would be expected).\nThe more the sun heats up and the pressure rises, the more it wants to "blow itself apart".  After a certain point, the pressure and heat at the core is high enough for nuclear fusion to take place.  Nuclear fusion releases a lot of energy...so much energy, it is capeable of hold the sun up under its own weight.\n\nAt this point in the sun's life, the forces of gravity trying to pull the sun together and the energy released by nuclear fusion acting to hold the sun up and blow it apart of pretty much balanced.  If one force were to get the upperhand, the other force would work to balance it out.  If the sun were to shrink a little, the rate of nuclear fusion would increase to compensate.  If nuclear fusion increases, the the sun would expand, cool, and nuclear fusion would slow, allowing gravity to pull it back together.\n\nAs the sun runs out of Hydrogen to fuse, the sun will have to fuse heaveier and heavier elements with increaingly less yeild.  In the end however, our sun will expand to become a Red Giant before blowing off a lot of material and become a white dwarf star.
248579
cause in Ur position the sun is not completely vertical , in which all times the vertical rays have the greater effect , so we will tilt it in a degree to make the rays vertical approximately to Ur panel
694803
If you can't afford a compass, wake up early in the morning and look for the sun.  It will rise in the East.  If you turn 90° to the right, that will be South.  West is the opposite direction from East and North is the opposite direction from South.
75399
The reason there is differing amounts of daylight is that the Earth's axis is tilted with respect to the plane of its rotation about the sun. When the north pole is tilted towards the sun, the northern hemisphere days get longer. The point in the Earth's orbit about the sun where the plane through the Earth's axis that is perpendicular to the Earth's plane of orbit ALSO passes through the sun itself (i.e. the Earth's rotation axis is lined up with the sun, north end closest) is the summer solstice. When the same plane passes through the sun again, only with the south pole closest, that is the winter solstice. At summer solstice, the length of the day is longest in the northern hemisphere. At winter solstice the day is shortest in the northern hemisphere. The opposite is true in the southern hemisphere. On the equator the lengths of the days don't change at all! The further you get from the equator, the more the length of the days change with the seasons.\n\nSo let's talk northern hemisphere. If the longest day is around June 21 (summer solstice) and the shortest day is Dec 21 winter solstice, you can think of the length of the days as changing smoothly from shortest to longest as you move from winter to summer solstice. If you do the geometry to figure out how the length of days changes with the seasons, it looks a lot like a sine wave. It's actually shaped a little differently because the Earth's orbit is not a circle--that would make a sine wave exactly for the length of days--but instead an ellipse. But it's still pretty close to a sine wave. If you look at a sine wave, you'll notice that as the wave approaches the bottom, slows down its descent until it almost "flattens" at the bottom, but not quite. Then after the bottom, it goes up more steeply until somewhere in the spring it is changing as fast as possible (pretty near to the vernal equinox), then begins to slow down again until it hits the peak at the summer solstice. After the summer solstice, the longest day, the length of days begins to fall, slowly at first and then ever faster, until somewhere in fall (pretty near the autumnal equinox) it's changing as fast as it's ever going to. Then it begins to slow down, until it hits the minimum at the winter solstice again. If you look back at the description about, you'll notice that the rate at which the length of days change also varies with the season. In fact, the rate of change is like a sine wave, too, only it's shifted by a season from the wave that describes the rising and falling of the length of the day itself.\n\n\nFor the latitudes farther away from the equator, the amplitude of the sine wave is larger. For the southern hemisphere it is flipped upside down compared to the same latitude in the northern hemisphere. And on the equator, the "sine" curve as zero amplitude--that is, it's a straight line.\n\nIn calculus you would say that the rate of change of a function (the "derivative" of the function with respect to time) tells you how fast the daylight is changing on a given day. And, in calculus you also learn that the rate of change of a sine wave is a cosine wave--or just another sine wave shifted back by 90 degrees. And 90 degrees of the sine wave describing the length of days corresponds to one season on Earth!
417252
If you mean, Why does the moon travel from East to West ?" The answer is because The Earth rotates in the opposite direction.  In fact, the moon actually travels from West to East, and this can be seen simply by observing it on consecutive nights, and compare its position in the sky with other celestial objects.
1038
The above is an incorrect answer. Seasons do not occur because of the distance of the earth to the sun. In fact, during winter, the earth is physically closer to the sun and during the summer, it is furthest.\n\nTilt is key. Its important that not only is there a tilt on the earth, but the direction of that tilt is not altered during the rotation of the earth around the sun.\n\nThe Northern hemisphere is always tilting away during the winter, and towards the sun during the summer. The tilt of the earth is 23 degrees. So lets say you're at 45 degrees lattitude. During the summer, the sun will rise to 45+23 (68) degrees because the tilt is towards it, and in winter, the sun only goes to 45-23 (22) degrees. There is a big difference between the sun going up 22 degrees and the sun going to 68 degrees.\n\nWhen the sun goes to 68 degrees, it is more overhead, and the earth therefore receives more of its rays. During winter, light rays are striking obliquely, and hence do not warm the earth as much.\n\nThis is why there are less variations of seasons around the equator, where the sun is almost always directly overhead all the time.\n\nAnd this is why seasons are reversed on the southern hemisphere. When the northern hemisphere tilts towards the sun, the south is tilting away.
73074
Last answer is correct. During winter, the earth is physically closer to the sun and during the summer, it is furthest. \n\nTilt is key. Its important that not only is there a tilt on the earth, but the direction of that tilt is not altered during the rotation of the earth around the sun. \n\nThe Northern hemisphere is always tilting away during the winter, and towards the sun during the summer. The tilt of the earth is 23 degrees. So lets say you're at 45 degrees lattitude. During the summer, the sun will rise to 45+23 (68) degrees because the tilt is towards it, and in winter, the sun only goes to 45-23 (22) degrees. There is a big difference between the sun going up 22 degrees and the sun going to 68 degrees.\n\nWhen the sun goes to 68 degrees, it is more overhead, and the earth therefore receives more of its rays. During winter, light rays are striking obliquely, and hence do not warm the earth as much.\n\nThis is why there are less variations of seasons around the equator, where the sun is almost always directly overhead all the time.\n\nAnd this is why seasons are reversed on the southern hemisphere. When the northern hemisphere tilts towards the sun, the south is tilting away.
108762
There is a common misconception that winter happens when earth is farthest from the sun.  Actually, earth's orbit is only slightly elliptical.  Temperatures vary because of the inclination of the earth.\n\nThe hours of daylight and darkness are not related to earth's orbit.  The hours change because the earth rotates about the north pole - south pole axis and this axis is tilted relative to the sun.  Check the link in sources for all the details!
599168
In the mid-latitude regions like the 48 contiguous states of the US, the path of the sun (the ecliptic) across the sky is lower than it is in the tropics. \n\nIf you lived at the equator, the sun would pass directly overhead at true noon on an equinox day (it passes directly overhead where I live this week, and again in July). We say this is 90 degrees from the horizon.\n\nIf you lived at one of the poles, the sun would barely skim the horizon in the summer--getting only as high as 23.3 degrees, and not appear at all in winter. \n\nIf you lived at 45 degrees latitude north, the highest the sun would ever get in your sky is about 68 degrees from the southern horizon on the summer solstice.\n\nIf you were to trace the path of the sun from the horizon as it rises and sets--you might suffer permanent damage to your eyes, so don't--you would find that in North America the angle is more acute than it is in the tropics, because of the lower path in the sky.\n\nFor these two reasons, the sun spends more of its "day" near the horizon in the US than it would in many places in India. On the other hand, there are some places in the US that are farther south than some places in India!
1097315
Neither of those, it never sets because it doesnt move through space.  The Earth turns, so it appears that the sun is setting.
160404
Because the sun is going down or coming up
1044855
I've read about the angle of incidence answer in many elementary school books. At best, it is misleading. The fact that sunlight is more direct during the summer has little to do with the amount of radiation a hemisphere of the Earth collects. The Earth's tilt does however dictate how many hours of sunlight a hemisphere receives. In the northern hemisphere when the Earth is tilted toward the Sun (June, July, August) the north gets more hours of sunlight. More hours of sunlight equates with more collected radiation and that equates with hotter temperatures. Having said that, this isn't the entire story. If it were then the North Pole would be the hottest place on Earth during June, July, and August... and it isn't. So weather patterns play an important role in moving the heat to specific places.
703666
Put simply, the earth spins from west to east so there is a drag of air (and water) from east to west as it partly resists the earth's motion.\n\nThis effect is most pronounced at the equator which is spinning fastest. Hence there are strong ocean and wind currents from east to west along the equator. The trade winds are sucked into the wake or tail of this from the north and the south. So in the northern hemisphere they are northeast to southwest, in the southern hemispere they are southeast to northwest.
700591
Every morning on Mars, the Sun rises in the East, and every evening, it sinks to the West.\nSomeone got cunfused with they're information. MARS ITSELF \nRISES AND SETS IN THE EARTH'S SKIES FROM THE WEST TO THE EAST.\nThe retrograde motion is what causes MARS to shift rise and set directions in OUR SKY.\n\nFor the Sun in the skies of Mars to rise and set  in opposite horizons would mean that Mars suddenly came to a stop and started spinning backwards on it's axis.\nMars could only change its direction of planetary rotation if a planet larger than itself crashed into it with an unimaginable amount of force.\nSo no, that information is incorrect and Mars still rotates the same way around our sun.