how does the rotation of the earth influence us? write about in detail
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Earth rotation is one of the key ingredients determining the Earth’s climate, long rotation rates may for instance cause much larger temperature excursions on a daily base, making life a lot tougher (boiling during the day, freezing during the night!). On top of this, there would other, more subtle but not less important changes. For instance, the direction and speed of the winds would change, the typical duration of a storm would surely change (they would probably last longer with slower rotation rates), with enormous consequences on very basic things like: would any tree survive
season would change but also tides, and with those also marine life will be affected. Some fishes or plankton species relies on tidal current to get fresh nutrients and food, with that changed, they would also have to change their feeding habits.
Great question, actually, thanks for asking, it is very fascinating to think about how much life on Earth relies on this little detail
season would change but also tides, and with those also marine life will be affected. Some fishes or plankton species relies on tidal current to get fresh nutrients and food, with that changed, they would also have to change their feeding habits.
Great question, actually, thanks for asking, it is very fascinating to think about how much life on Earth relies on this little detail
yaotsu:
thank you so much
np :)
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The rotation of the Earth causes several illusions:
The Sun appears to move across the sky each day from East to West
The Moon appears to move through the night's sky
The stars appear to spin around Polaris in the night's sky (as shown in the image to the right)
ll of these are examples of apparent motion - meaning they aren't really occurring. The motion that is occuring in reality is the Earth's rotation.
Since all of these motions are caused Earth's rotation, they all appear to move at the same speed as the Earth.
The sun moves 15 degrees through the sky per hour
The moon moves 15 degrees through the sky per hour
The stars spin around Polaris 15 degrees per hour
ROTATION AND TIME
The Earth's rotation is the bases for our whole system of measuring time.
As we learned in the previous lesson, Earth rotates at a rate of 15 degrees per hour. To complete one rotation the Earth has to spin around 360 degrees.
At a rate of 15 degrees per hour it takes 24 HOURS TO COMPLETE 1 ROTATION.
SOLAR TIME
In the past, people would use the Sun's position in the sky to tell time. This is called SOLAR TIME.
When the Sun first rises, the solar time is approximately 6AM
When the Sun is directly overhead, the solar time is 12PM noon.
When the Sun sets, the solar time is approximately 6PM.
The problem is, the Sun rises, and sets at different times in different places. For example, when we see the sunrise in NYC, it is still dark in Los Angeles. When the sun is directly overhead in NYC, it is still the morning in Denver.
TIME ZONES
To standardize time, so that we could all agree on the time no matter where we were, we developed different TIME ZONES.
To make time zones, we divided the Earth up into 24 different sections, with each one 15 degrees apart. This makes it so that every time zone is a one hour difference.
As you travel East each time zone decreases by one hour
As you travel West each time zone increases by one hour.
The Sun appears to move across the sky each day from East to West
The Moon appears to move through the night's sky
The stars appear to spin around Polaris in the night's sky (as shown in the image to the right)
ll of these are examples of apparent motion - meaning they aren't really occurring. The motion that is occuring in reality is the Earth's rotation.
Since all of these motions are caused Earth's rotation, they all appear to move at the same speed as the Earth.
The sun moves 15 degrees through the sky per hour
The moon moves 15 degrees through the sky per hour
The stars spin around Polaris 15 degrees per hour
ROTATION AND TIME
The Earth's rotation is the bases for our whole system of measuring time.
As we learned in the previous lesson, Earth rotates at a rate of 15 degrees per hour. To complete one rotation the Earth has to spin around 360 degrees.
At a rate of 15 degrees per hour it takes 24 HOURS TO COMPLETE 1 ROTATION.
SOLAR TIME
In the past, people would use the Sun's position in the sky to tell time. This is called SOLAR TIME.
When the Sun first rises, the solar time is approximately 6AM
When the Sun is directly overhead, the solar time is 12PM noon.
When the Sun sets, the solar time is approximately 6PM.
The problem is, the Sun rises, and sets at different times in different places. For example, when we see the sunrise in NYC, it is still dark in Los Angeles. When the sun is directly overhead in NYC, it is still the morning in Denver.
TIME ZONES
To standardize time, so that we could all agree on the time no matter where we were, we developed different TIME ZONES.
To make time zones, we divided the Earth up into 24 different sections, with each one 15 degrees apart. This makes it so that every time zone is a one hour difference.
As you travel East each time zone decreases by one hour
As you travel West each time zone increases by one hour.
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