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passage of time.
Sagging Power LinesIn the summer, power lines warm up with the weather. Since materials expand when they get warm, the power lines stretch out and sag. The opposite happens in the winter, as the power lines get colder, they contract. Also, in the summer the electrical load on the line is generally greater. This in turn causes increased temperature and can lead to the line sagging.
the metal inside the wire heats up leading to the expansion of the wire.
Wow, no. There is not. Check out the lines of latitude.
equator prime meridian
Every point along the same line of latitude has the same amount of time between sunrise and sunset at any given moment. That amount of time grows gradually shorter from the time of the summer solstice until the time of the winter solstice, and it grows gradually longer from the winter solstice until the summer solstice. Also, higher altitudes at the same latitude and longitude will see the sun slightly longer.
The Tropic of Cancer and the Tropic of Capricorn.
It is when the Earth lines up with the sun, causing the oceans waves to grow larger and destroy towns. This is because of the wind patterns blowing hot air into the water.
They are specially marked because, they are the most north and south on the lines of latitude. During the summer solstice, the sun beams directly on these points ( the two arctic circles)
latitude is one of the four factors that affect climate. lines of latitude may be farther or closer to the equator, which determines the climate. for example, if the lines of latitude are farther from the equator, the climate will be colder than if the latitude is closer to the equator.
The Antarctic Circle is at 66 degrees 32 minutes S latitude and marks the point on the Earth's surface where the Sun does not appear above the horizon at the southern Winter Solstice. It also marks the northernmost point of the Antarctic Frigid Zone. The Tropic of Capricorn is at approximately 23 degrees 30 minutes S latitude and marks the point on the Earth's surface where the Sun is directly overhead at the southern Summer Solstice. It also marks the southernmost point of the Tropic Zone. The area between these two imaginary lines is known as the southern Temperate Zone.
Either the Tropic of Cancer or the Tropic of Capricorn. BTW -- they're lines of latitude, not longitude.
equator- zero degree latitude prime meridian- zero degree longitude arctic circle- the sun does not appear in northern solstice antarctic circle- the sun does not appear in southern solstice tropic of cancer tropic of Capricorn international dateline-the back of the prime meridian latitude-the horizontal lines longitude- the vertical lines
The region of the Earth that is receives the most sunlight is capable of having the most solar energy. This would include all the area from 23.5o N to 23.5o S, the Tropic of Cancer and the Tropic of Capricorn. On the winter solstice, the sun is directed on the Tropic of Capricorn, and on the summer solstice, the sun is directed on the Tropic of Cancer. So that means the sun never exceeds those lines of latitude.
The Tropic of Cancer is at approximately 23 degrees 30 minutes N latitude and marks the point on the Earth's surface where the Sun is directly overhead at the northern Summer Solstice. It also marks the northernmost point of the Tropic Zone. The Tropic of Capricorn is at approximately 23 degrees 30 minutes S latitude and marks the point on the Earth's surface where the Sun is directly overhead at the southern Summer Solstice. It also marks the southernmost point of the Tropic Zone.
Heat in the summer makes materials expand which make power lines somewhat elastic. During the cold months of winter the power lines contract. The difference of the reaction of the materials during seasons is why a power line is more likely to break in the winter than in the summer bearing the same weight.
Latitudinal lines never meet as the are circumference lines. However, Longitudinal lines meet at the North & South poles. Zero Longitude goes through Greenwich which is also where Greenwich Mean Time (GMT) comes from. GMT is British winter time as opposed to British Summer Time which is GMT +1 hour.