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| Topic: Blackholes | |
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Actually, the whirlpool that is formed by a toilet is exactly like the matter falling into a black hole ... and for the same reason, i.e., gravity. hmmmm. not quite. if gravity was the only phenomenon affecting water falling, why would it not fall strait down on all sides? why the rotating motion of a whirlpool? anybody?  I want to know why the whirl pool always goes the same direction. I also heard that on the other side of the world it flows in the opposite direction... always. What causes that? |
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Yeh I guess going from the north to the south pole (axis) you could go in any "direction." Of course if you are at the north pole and you want to go to the south pole, I would advise you just go south. Which would be any direction you took.  Weird though. bingo. a+ for bean. the only direction you can go from the north pole is south or heading one eight zero degrees. |
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That's the Magnetic North Pole, rather than the true North Pole. It's 11 or so degrees off from the true North Pole. hmmmm. not quite. magnetic variation as it's called, varies depending on where you are on earth. yes, where you live, the east coast i'd guess as you used eleven degrees, variation may amount to eleven degrees. but variation changes as you travel east or west. at two lines of longitude on the globe variation is zero meaning true north and magnetic north line up exactly. the magnetic north pole is changing as well so navigation charts must be altered from time to time. the reason that compasses are not much good near the poles is that magnetic variation can be so huge as to render them useless. here's an interesting question. let's say you are flying directly over the true north pole, that is the point where the earth's axis would protrude if it were visible. if you want to fly to new york, what heading would you take? what heading for paris? moscow? australia? maybe you'll understand why navigating over the poles requires training that involves more than simply looking at a compass. Draw a line through the earth that goes directly from one point to another on the surface. Then, for every point on that line, draw a line from the center of the earth to the surface of the earth. This creates a line on the surface of the earth that is the shortest distance between the two points on the surface. (Of course, this doesn't work if the two surface points are exactly opposite each other. In that case, any line on the surface, going from one point to the other, would be the same length.) good point. we call these lines "great circles". so which direction is it from the north pole to ny? I told you.... SOUTH. |
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Actually, the whirlpool that is formed by a toilet is exactly like the matter falling into a black hole ... and for the same reason, i.e., gravity. hmmmm. not quite. if gravity was the only phenomenon affecting water falling, why would it not fall strait down on all sides? why the rotating motion of a whirlpool? anybody? I want to know why the whirl pool always goes the same direction. I also heard that on the other side of the world it flows in the opposite direction... always. What causes that? don't want to spoil everybody's fun bean. let's give them a chance huh? lol. |
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Yeh I guess going from the north to the south pole (axis) you could go in any "direction." Of course if you are at the north pole and you want to go to the south pole, I would advise you just go south. Which would be any direction you took. Weird though. bingo. a+ for bean. the only direction you can go from the north pole is south or heading one eight zero degrees. OH GOODY I GET AN A+ 
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That's the Magnetic North Pole, rather than the true North Pole. It's 11 or so degrees off from the true North Pole. hmmmm. not quite. magnetic variation as it's called, varies depending on where you are on earth. yes, where you live, the east coast i'd guess as you used eleven degrees, variation may amount to eleven degrees. but variation changes as you travel east or west. at two lines of longitude on the globe variation is zero meaning true north and magnetic north line up exactly. the magnetic north pole is changing as well so navigation charts must be altered from time to time. the reason that compasses are not much good near the poles is that magnetic variation can be so huge as to render them useless. here's an interesting question. let's say you are flying directly over the true north pole, that is the point where the earth's axis would protrude if it were visible. if you want to fly to new york, what heading would you take? what heading for paris? moscow? australia? maybe you'll understand why navigating over the poles requires training that involves more than simply looking at a compass. Draw a line through the earth that goes directly from one point to another on the surface. Then, for every point on that line, draw a line from the center of the earth to the surface of the earth. This creates a line on the surface of the earth that is the shortest distance between the two points on the surface. (Of course, this doesn't work if the two surface points are exactly opposite each other. In that case, any line on the surface, going from one point to the other, would be the same length.) good point. we call these lines "great circles". so which direction is it from the north pole to ny? I told you.... SOUTH. jeez. you got your a plus. you want an apple too? |
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I do know something ironic about the flushing of a toilette.
In my many travels I realized that above the equater the flushing of the water goes from left to right and if I am below the equator the flushing goes from right to left. I think I got that right? I haven't been traveling much lately and forgot, but I did notice a different rotation when I did use them. Gosh this makes it sound like I spend half of my days on a toilette seat doesn't it! Anyway would this have something to do with gravity pull or is it just the toilettes have different functions, or am I going slightly insane and becoming superstitious |
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Actually, the whirlpool that is formed by a toilet is exactly like the matter falling into a black hole ... and for the same reason, i.e., gravity. hmmmm. not quite. if gravity was the only phenomenon affecting water falling, why would it not fall strait down on all sides? why the rotating motion of a whirlpool? anybody? you already graduated sky. give the students a shot. |
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Actually, the whirlpool that is formed by a toilet is exactly like the matter falling into a black hole ... and for the same reason, i.e., gravity. hmmmm. not quite. if gravity was the only phenomenon affecting water falling, why would it not fall strait down on all sides? why the rotating motion of a whirlpool? anybody? bernoulli? venturi? corliolis? I would have to look that one up and I'm too butt lazy this mornin |
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Edited by
Jeanniebean
on
Thu 11/12/09 10:37 AM
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I do know something ironic about the flushing of a toilette. In my many travels I realized that above the equater the flushing of the water goes from left to right and if I am below the equator the flushing goes from right to left. I think I got that right? I haven't been traveling much lately and forgot, but I did notice a different rotation when I did use them. Gosh this makes it sound like I spend half of my days on a toilette seat doesn't it! Anyway would this have something to do with gravity pull or is it just the toilettes have different functions, or am I going slightly insane and becoming superstitious Its not just toilets. It is sinks too. What does the equator have to do with it? Plus, what if you are right on the equator.... dead on it? |
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I do know something ironic about the flushing of a toilette. In my many travels I realized that above the equater the flushing of the water goes from left to right and if I am below the equator the flushing goes from right to left. I think I got that right? I haven't been traveling much lately and forgot, but I did notice a different rotation when I did use them. Gosh this makes it sound like I spend half of my days on a toilette seat doesn't it! Anyway would this have something to do with gravity pull or is it just the toilettes have different functions, or am I going slightly insane and becoming superstitious you're on the right track but no cigar. you got your directions and hemispheres right though. |
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I do know something ironic about the flushing of a toilette. In my many travels I realized that above the equater the flushing of the water goes from left to right and if I am below the equator the flushing goes from right to left. I think I got that right? I haven't been traveling much lately and forgot, but I did notice a different rotation when I did use them. Gosh this makes it sound like I spend half of my days on a toilette seat doesn't it! Anyway would this have something to do with gravity pull or is it just the toilettes have different functions, or am I going slightly insane and becoming superstitious Its not just toilets. It is sinks too. What does the equator have to do with it? Plus, what if you are right on the equator.... dead on it? would you believe bathtubs too? |
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I do know something ironic about the flushing of a toilette. In my many travels I realized that above the equater the flushing of the water goes from left to right and if I am below the equator the flushing goes from right to left. I think I got that right? I haven't been traveling much lately and forgot, but I did notice a different rotation when I did use them. Gosh this makes it sound like I spend half of my days on a toilette seat doesn't it! Anyway would this have something to do with gravity pull or is it just the toilettes have different functions, or am I going slightly insane and becoming superstitious Its not just toilets. It is sinks too. What does the equator have to do with it? Plus, what if you are right on the equator.... dead on it? I never tried a toilette exactly at the equator  Maybe it just goes straight I just found it ironic that it does that. I am not sure what causes this, but I found it ironic. If it has something to do with gravity, magnetism, or just pressure, it would be interesting to know. 
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lest we forget hurricanes.
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sky's had his hand up quite awhile. when you've all given up let him show his stuff. normally showing off is my gig but feeling generous today. lol.
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yeah the more I think of it the more I think its just coriolis force doing it
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lest we forget hurricanes. Yeh right. Something about them spinning in the same direction all the time. |
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Edited by
smiless
on
Thu 11/12/09 10:44 AM
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lest we forget hurricanes. Which is interesting because what if a hurricane starts at the south of the equator and passes it up to the north of it. It doesn't suddenly change direction would it? It would lose its momentum right? You know I have been through quiet a few hurricanes here in Miami, yet never paid attention to that. I thought Ida just recently would hit us as it looked liked it was going to change directions. The rotating of the hurricane doesn't change direction does it? Very interesting point you bring up jrbogie.
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I do know something ironic about the flushing of a toilette. In my many travels I realized that above the equater the flushing of the water goes from left to right and if I am below the equator the flushing goes from right to left. I think I got that right? I haven't been traveling much lately and forgot, but I did notice a different rotation when I did use them. Gosh this makes it sound like I spend half of my days on a toilette seat doesn't it! Anyway would this have something to do with gravity pull or is it just the toilettes have different functions, or am I going slightly insane and becoming superstitious Its not just toilets. It is sinks too. What does the equator have to do with it? Plus, what if you are right on the equator.... dead on it? coriolis effect and they don't flush exactly on the equator. |
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From wikipedia:
Perhaps the most commonly encountered rotating reference frame is the Earth. Moving objects on the surface of the Earth experience a Coriolis force, and appear to veer to the right in the northern hemisphere, and to the left in the southern. Exactly on the equator, motion east or west, remains (precariously) along the line of the equator. Initial motion of a pendulum in any other direction will lead to a motion in a loop. Movements of air in the atmosphere and water in the ocean are notable examples of this behavior: rather than flowing directly from areas of high pressure to low pressure, as they would on a non-rotating planet, winds and currents tend to flow to the right of this direction north of the equator, and to the left of this direction south of the equator. This effect is responsible for the rotation of large cyclones (see Coriolis effects in meteorology). |
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