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Post by kls on Jan 28, 2018 13:13:05 GMT
The distance from the Sun must have an effect. Yes, a peanut of an effect. The variation from 91 million to 94 million is a variation of approx. +/- 1.5%. However, the tilt causes a variation in the concentration of the sun's rays of approx. +100% to -50%. That is much more significant. Here:  When the sun is overhead in the sky, a beam of sunlight of width x, falls on the ground with width x. However, when the sun is low (due to the tilt), a beam of width x can fall on the ground with width 2x, i.e. the rays are half as concentrated, therefore are delivering half the concentration of heat. Exactly. The distance might mean perhaps the average temperature might be a degree F milder or colder (if that), but certainly not a cause for the seasons. |
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Post by Harold of Whoa on Jan 28, 2018 13:56:06 GMT
I take the word responsible as meaning the cause/why something happens. If distance has an effect it still isn't the reason for seasons happening. I disagree. I think the tilt and distance are responsible for the seasons. And yet the effect is the opposite of what you are postulating. You said in an earlier post that the Southern Hemisphere has milder winters than the Northern Hemisphere, which seems true (although I haven't checked any data on that.) But Earth is closest to the sun in January, when it is winter in the north. |
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Post by movieliker on Jan 28, 2018 19:42:26 GMT
I disagree. I think the tilt and distance are responsible for the seasons. And yet the effect is the opposite of what you are postulating. You said in an earlier post that the Southern Hemisphere has milder winters than the Northern Hemisphere, which seems true (although I haven't checked any data on that.) But Earth is closest to the sun in January, when it is winter in the north. All the links I can find say the weather is warmer in the Southern Hemisphere because it is covered by more water and less land. It has nothing to do with the Sun, tilt or distance.
"Water has a high specific heat capacity so it loses heat slowly. Most of the area of the southern hemisphere is ocean. The oceans warm up in the summer and retain heat during the winter.
The northern hemisphere has much more land mass which loses its heat quickly. This is demonstrated by the continental effect where the central regions of the northern continents have very cold winters."socratic.org/questions/why-is-the-southern-hemisphere-warmer-than-the-northern |
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Post by kls on Jan 28, 2018 20:14:57 GMT
And yet the effect is the opposite of what you are postulating. You said in an earlier post that the Southern Hemisphere has milder winters than the Northern Hemisphere, which seems true (although I haven't checked any data on that.) But Earth is closest to the sun in January, when it is winter in the north. All the links I can find say the weather is warmer in the Southern Hemisphere because it is covered by more water and less land. It has nothing to do with the Sun, tilt or distance.
"Water has a high specific heat capacity so it loses heat slowly. Most of the area of the southern hemisphere is ocean. The oceans warm up in the summer and retain heat during the winter.
The northern hemisphere has much more land mass which loses its heat quickly. This is demonstrated by the continental effect where the central regions of the northern continents have very cold winters."socratic.org/questions/why-is-the-southern-hemisphere-warmer-than-the-northernBut you haven't come up with anything that says distance from the sun even has much of an effect on the seasons (never mind being responsible for them). |
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Post by movieliker on Jan 28, 2018 20:31:32 GMT
All the links I can find say the weather is warmer in the Southern Hemisphere because it is covered by more water and less land. It has nothing to do with the Sun, tilt or distance.
"Water has a high specific heat capacity so it loses heat slowly. Most of the area of the southern hemisphere is ocean. The oceans warm up in the summer and retain heat during the winter.
The northern hemisphere has much more land mass which loses its heat quickly. This is demonstrated by the continental effect where the central regions of the northern continents have very cold winters."socratic.org/questions/why-is-the-southern-hemisphere-warmer-than-the-northernBut you haven't come up with anything that says distance from the sun even has much of an effect on the seasons (never mind being responsible for them). That is because I can't find anything. It was always just my opinion. All the links give theory. Not proof. I disagree with their theory. |
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Post by kls on Jan 28, 2018 20:42:20 GMT
But you haven't come up with anything that says distance from the sun even has much of an effect on the seasons (never mind being responsible for them). That is because I can't find anything. It was always just my opinion. All the links give theory. Not proof. I disagree with their theory. No matter where Earth is in its orbit around the sun (91 million miles, in the middle of the range or 94 million miles) the southern and northern hemispheres are the same distance from the sun. And yet the seasons are opposites. I still don't comprehend how if distance caused the seasons why all parts of the planet Earth wouldn't have the same season at the same time. Tilt is not theory. It's fact. |
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Post by Deleted on Jan 28, 2018 21:27:41 GMT
That is because I can't find anything. It was always just my opinion. All the links give theory. Not proof. I disagree with their theory. No matter where Earth is in its orbit around the sun (91 million miles, in the middle of the range or 94 million miles) the southern and northern hemispheres are the same distance from the sun. And yet the seasons are opposites. I still don't comprehend how if distance caused the seasons why all parts of the planet Earth wouldn't have the same season at the same time. Tilt is not theory. It's fact. Kls the distance does matter but only minutely on earth its all about the angle. the focusing of the solar radiation with a steeper angle look at my post to understand exactly what i am saying. in the northern hem, the sun is farther away from us than in the winter its opposite in the southern hem Now of course summertime on earth is hotter than summertime on mars. distance IS a factor- but not on earth- not in the way you mean. When you are sitting on the beach in a bathing suit and you feel that sun on you... its becuase the rays are being focused. despite being farther away, they are being focused and feels hotter( which is why you are far more likely to get sunburn in the summer because in the other seasons the rays are less focused onto 1 spot. |
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Post by kls on Jan 28, 2018 21:29:49 GMT
No matter where Earth is in its orbit around the sun (91 million miles, in the middle of the range or 94 million miles) the southern and northern hemispheres are the same distance from the sun. And yet the seasons are opposites. I still don't comprehend how if distance caused the seasons why all parts of the planet Earth wouldn't have the same season at the same time. Tilt is not theory. It's fact. Kls the distance does matter but only minutely on earth its all about the angle. the focusing of the solar radiation with a steeper angle look at my post to understand exactly what i am saying. in the northern hem, the sun is farther away from us than in the winter its opposite in the southern hem Now of course summertime on earth is hotter than summertime on mars. distance IS a factor- but not on earth- not in the way you mean. Right, but I'm confused why you quoted me. How did what I write dispute that or demonstrate I don't understand? Several times I have mentioned tilt in this thread. |
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Post by Deleted on Jan 28, 2018 21:32:23 GMT
The distance from the Sun must have an effect. Yes, a peanut of an effect. The variation from 91 million to 94 million is a variation of approx. +/- 1.5%. However, the tilt causes a variation in the concentration of the sun's rays of approx. +100% to -50%. That is much more significant. Here: When the sun is overhead in the sky, a beam of sunlight of width x, falls on the ground with width x. However, when the sun is low (due to the tilt), a beam of width x can fall on the ground with width 2x, i.e. the rays are half as concentrated, therefore are delivering half the concentration of heat. yes thats right. see they are thinking distance in earths orbit is a HUGE factor- and it is not. on Mars temps are lower becuase of distance but on earth the slight change between earth and sun during earths revolution wouldnt make much of a difference. |
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Post by Deleted on Jan 28, 2018 21:38:35 GMT
Kls the distance does matter but only minutely on earth its all about the angle. the focusing of the solar radiation with a steeper angle look at my post to understand exactly what i am saying. in the northern hem, the sun is farther away from us than in the winter its opposite in the southern hem Now of course summertime on earth is hotter than summertime on mars. distance IS a factor- but not on earth- not in the way you mean. Right, but how did what I write dispute that or demonstrate I don't understand? see the problem with some people on this thread- not naming names- u can clearly tell who the dumbasses are) that they think just because its 800 degrees on Venus and at most like 70 ish degrees at its hottest on Mars that the distances between the Sun and our planet during the elliptical orbit of Earth is going to make a vast difference ITS NOT. While distance + temperature does matter comparing the planets in the solar system- they mean very little for our revolution on earth While its generally true that the closer you are to the sun , the hotter the planet is going to be, that isnt ALWAYS the case the hottest planet in our solar system is NOT Mercury like some may think,. but Venus ( due to the massive greenhouse effect trapping heat as well as the high pressure atmosphere.) Mercury has no atmosphere and it despite being so closer to the sun it not as hot as Venus this is just an example why distance doesnt always count. Understand now? The focusing of the rays is more important |
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Post by Deleted on Jan 28, 2018 21:53:48 GMT
I take the word responsible as meaning the cause/why something happens. If distance has an effect it still isn't the reason for seasons happening. I disagree. I think the tilt and distance are responsible for the seasons. You are incorrect. its very cold during the winter of both hemispheres even though northern winter should be milder( closer to sun)- its not -check the world temps during those times. same for summer- the north should have a mild summer but they doesnt- hottest temps were recorded in the northern hem(136 degrees libya ,and death valley 134)  distance only applies if it is in a much larger scale- not the distance between summer and winter during earths elliptical orbit Focusing solar rays are more important.  You can be out all day in winter with your shirt off on a clear day and not get sunburn- try that during the summer. www.shsu.edu/~dl_www/bkonline/131online/f02latitude/02index.htm |
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Post by kls on Jan 28, 2018 22:09:26 GMT
Right, but how did what I write dispute that or demonstrate I don't understand? see the problem with some people on this thread- not naming names- u can clearly tell who the dumbasses are) that they think just because its 800 degrees on Venus and at most like 70 ish degrees at its hottest on Mars that the distances between the Sun and our planet during the elliptical orbit of Earth is going to make a vast difference ITS NOT. While distance + temperature does matter comparing the planets in the solar system- they mean very little for our revolution on earth While its generally true that the closer you are to the sun , the hotter the planet is going to be, that isnt ALWAYS the case the hottest planet in our solar system is NOT Mercury like some may think,. but Venus ( due to the massive greenhouse effect trapping heat as well as the high pressure atmosphere.) Mercury has no atmosphere and it despite being so closer to the sun it not as hot as Venus this is just an example why distance doesnt always count. Understand now? The focusing of the rays is more important Again, thank you-but I understood before. |
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Post by Deleted on Jan 29, 2018 0:27:02 GMT
aplanetruth.info/9-why-is-the-earth-closest-to-the-sun-in-the-wintertime/see the problem with some people on this thread- not naming names- u can clearly tell who the dumbasses are) that they think just because its 800 degrees on Venus and at most like 70 ish degrees at its hottest on Mars that the distances between the Sun and our planet during the elliptical orbit of Earth is going to make a vast difference ITS NOT. While distance + temperature does matter comparing the planets in the solar system- they mean very little for our revolution on earth While its generally true that the closer you are to the sun , the hotter the planet is going to be, that isnt ALWAYS the case the hottest planet in our solar system is NOT Mercury like some may think,. but Venus ( due to the massive greenhouse effect trapping heat as well as the high pressure atmosphere.) Mercury has no atmosphere and it despite being so closer to the sun it not as hot as Venus this is just an example why distance doesnt always count. Understand now? The focusing of the rays is more important Again, thank you-but I understood before. yw sorry quoted the wrong person LOL |
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Post by kls on Jan 29, 2018 0:39:00 GMT
Again, thank you-but I understood before. yw sorry quoted the wrong person LOL That's okay. |
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Post by kls on Jan 30, 2018 14:25:12 GMT
I still don't understand the logic of anyone claiming Earth's seasons are caused by distance from the sun when the southern and northern hemispheres have opposite seasons. Earth's distance from the sun changes but wherever it is in its orbit both hemispheres are the same distance.
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