Reverend said:Do they each occur at the exact same time in the mornings and nights?
Reverend said:Do they each occur at the exact same time in the mornings and nights?
Well, if you mean, "Is the day symmetric about noon?" then the answer is no, it isn't. Part comes from the discreetized time zones. Part from daylight savings time.Reverend said:Do they each occur at the exact same time in the mornings and nights?
digitalwanderer said:What is this "sun" thing y'all are talking about? Does it have something to do with that mysterious "outside" thing all the kids talk about?
Only if you live on the equatorReverend said:Do they each occur at the exact same time in the mornings and nights?
Well, actually, everywhere experiences longer days at some times, shorter at others. It's only during the equinoxes that the length of day and night are the same, and even then, if you're in an area that is extremely flat, the refraction of the light through the atmosphere extends the day very slightly.OpenGL guy said:Only if you live on the equator
Everywhere else experiences longer days in the summer and shorter days in the winter. That precludes the sun from rising and setting at the same time each day.
OpenGL guy said:Only if you live on the equator
I'm pretty certain the equator has the same length of day every day of the year. Here's some info for you, http://en.wikipedia.org/wiki/Equator. Note the passage:Chalnoth said:Well, actually, everywhere experiences longer days at some times, shorter at others. It's only during the equinoxes that the length of day and night are the same, and even then, if you're in an area that is extremely flat, the refraction of the light through the atmosphere extends the day very slightly.
wikipedia said:Places near the equator experience the quickest rates of sunrise and sunset in the world, taking minutes. Such places also have a relatively constant amount of day/night time on every day throughout the year compared with more northerly or southerly places.
He's in Malaysia? Then it's a bit of a moot point isn't it?MuFu said:He's close, but in Malaysia you can never see then damn sun anyway.
Keyword: relatively.OpenGL guy said:I'm pretty certain the equator has the same length of day every day of the year. Here's some info for you, http://en.wikipedia.org/wiki/Equator. Note the passage:
Note that it also says locations "near" the equator. If you were exactly on the equator, the day would be the same length every day, discounting weather conditions of course.Chalnoth said:Keyword: relatively.
If you can be arrogant, why can't I?Chalnoth said:Oh, God, don't know what I was thinking. But you don't have to be an ass about it
If you won't take my word for it, why wouldn't I point out other sources?Anyway, if you want to convince me quicker, you'd be better-off appealing to a logical description, not worrying about outside sources.
That argument is not very good as you don't know that the place where equality happens is the same place for each day.Yes, at the equator, the length of the day is independent of the time of year. A simple argument is that in the northern hemisphere, the day is longer than night between the March equinox and the September equinox six months later. In the southern hemisphere, it's shorter during the same period. Since the length of the day cannot possibly be discontinuous, at some point inbetween the length must be constant.
Whew, I'm glad you finally agreed, at least up to 6 decimal placesGranted, the above assumes that the Earth is rotating with zero wobble, which is not absolutely true. So there will be some small variations, but these won't be related to the yearly cycle the rest of the world experiences.