Mathmatical Question on Earths Axis

[txswinner]

Re: Mathmatical Question on Earths Axis

1. It is movement of magnetic north which is not true north.<br /><br />2. If it were the tilt, you would have to know the direction of tilt, toward sun or parallel or something in between.<br /><br />3. Nice to see something to consider rather than the hard line, "Ain't no such thing as global warming."<br /><br />4. Other points, globe is not true representation as earth is not a true sphere, or and for some who never change beliefs it is not flat.<br /><br />5. The axis or imaginary axis do move and this is what causes the season as the earth's relationship with the sun changes.<br /><br />6. The movement of the imaginary axis moves a great deal more than 6" per year.

 

[Limited-Time]

Re: Mathmatical Question on Earths Axis

rodbolt is describing (Tool Nose) radius compensation if I could figure out how to post a drawing, the visual would explain it. Although I'm not sure how it applies here.

 

[tommays]

Re: Mathmatical Question on Earths Axis

Is that G41 or G42 ? with a G90 or G91<br /><br /><br />tommays

 

[Limited-Time]

Re: Mathmatical Question on Earths Axis

Could be a G02 or a G03!!!

 

[neumanns]

Re: Mathmatical Question on Earths Axis

Ya'll can laufgh if ya want but 6" is six inches and over time it add's up. I have been in this house for six years now and when I moved in my porch swing was a very comfertable place to set with a cup of iced tea in the mid day sun. But over the years it has just gotten to warm...The ice melts in my tea faster, the sun just batters ya now! I was finally forced to move my swing 36" to the north to compensate. I know it sound's odd and your saying to yourself...So what, move the swing every few years. But there is a problem, my deck is only so big, I only got another 12' to work with! If it keep's up at this rate I'll have to add on to the deck in 24 year's.

 

[JB]

Re: Mathmatical Question on Earths Axis

The reach of the sun on your porch will move a lot more than 36" between the winter and summer solstice, neumanns.

 

[rodbolt]

Re: Mathmatical Question on Earths Axis

its GOO baby and hopefully with an mo2 someplace <br /> yep an interesting question. mostly would depend on setting up some paremeters that are difficult to determine other than by hypothesis or conjecture.<br />if the sun was perpendicular with the equator and the pole axis for the sun and the earth parralell not much motion at the pole would look like a lot at the equator if you could measure it. where I spend a lot of my time in VE its about 10*N latitude. the length of the day varies about 40 min per year. at the poles it varies much more throughout the seasons. in Rio Chico there are 2 seasons I have observed, wet and really wet.<br />other than that the temp varies about 10* each day from low to high and the length of the day changes almost impreceptibly.<br /> but if ya really want a brain teaser goolge the drill bit that drills a square hole.<br /> I actually saw one once and its a mind blower <br /> I finally had to watch it work to belive it.

 

[--GQ--]

Re: Mathmatical Question on Earths Axis

Alright folks get out of ya cave, we got some evolving to do. I can't believe many of you question the fact that the Earth is tilted. How do you explain the "4 SEASONS"? And NO the Earth is not flat. Now I'm beginning to question our education system. Maybe math/science wasn't taught on a comprehensive level back when you folks were in school. Or maybe you were too busy "Tuning In, Turning On and Dropping Out". Ahhh good old Timothy Lerry. <br /><br />Professor Rodbolt, you dropped the ball this time. Inexcusable from a person of your status. The formula you are looking for..see diagram below, but let us use the KISS principle. This is what we know. the circumference (circle) of the Earth is 24,900 miles (see equation in diagram 1). The earth is basically a circle therefore has 360 degrees. Now divide 24,900 by 360, you will get 69.166666666 miles per degree. If the Earth shifted 3 degrees, the total distance shifted on the surface at any point is 207 miles. This formula is not taught in school. Rather logical reasoning from a mathematical point of view. Anyone with a high school education should be able to do this. Just to prove to you that I am correct, I will use the conventional formula you can find it in your Algebra 1&2 and in your Precalulus book. <br /><br />Diagram below shows two equations. One is conventional and the other one i made up. If you notice the answers are the same. Plug in some numbers and see for yourself. Let me know if there any holes. Now let us move on to the next issue at hand.<br /><br />The purpose of the triangle is to calculate the distant of point "A" and point "B" with respect to the sun after a 3 degrees shift and not intended to find the circular sector between point "A" and "B". Sure there are many ways of doing it, but prefer to do things my way. <br /><br /><br />

 

[rodbolt]

Re: Mathmatical Question on Earths Axis

GQ I agree<br /> however that was not the question.<br /> the question was how much would it shift related to the sun. if you assume the sun is fixed and a single point then the distance from the sun will be different at the poles and the equator.<br /> thus any linear motion of the poles would be different from 90*to 0*. however total motion would remain the same regardless.<br />so if a stright line from the sun to the equater was drawn and the earth shifted 10* you would have to take into account the curvature of the earth to calculate the total distance the earths surface moved away from the sun.<br /> its actaully a simple fire control solution but I forgot it.<br /> most gunners dont have to deal with the curvature but missle techs and fire controlman do.<br />FC2 retired <br />your foumula foprgot that as the axis tilts the curvature will increase the distance.<br /> as long as the centers of both points(sun&earth)remain staionary.

 

[rodbolt]

Re: Mathmatical Question on Earths Axis

oh and in Rio chico VE there are no "seasons" other than wet and wetter.<br /> in fact the sun is a vastly different color there than here.<br /> and the rays are prickly even in the shade.<br /> good thing is the Iguanas wont steal your beers

 

[--GQ--]

Re: Mathmatical Question on Earths Axis

Professor Rodbolt, look at diagram # 2. Notice the triangle. X Y line is the same as the radius of the Earth. Now imagine the line shifted up to the top line marked by 3959miles. That line is shorter by distance X with respect to the sun. Distance X is 5.6 miles at 3 degrees shift.

 

[--GQ--]

Re: Mathmatical Question on Earths Axis

The answer is 5.6 miles. If you flip the triangle around with the tail end toward the sun, the result will be the same. perhaps I should make another drawing.

 

[rodbolt]

Re: Mathmatical Question on Earths Axis

dude<br /> I am telling ya ya cannot use the right trianle formula on a curve unless both curves remain the same.<br /> it wont work on a machine tool either.<br /> if ya really wanna get jiggy figgure the fire control solution with a missle at 6000 miles from both east and west.<br /> I never took algebra, but I did have to learn practicle solutions to all fire control issues as well as manually programming CNC lathes and mills.<br /> your solution has an error.

 

[--GQ--]

Re: Mathmatical Question on Earths Axis

 

[rodbolt]

Re: Mathmatical Question on Earths Axis

yep<br /> but your fomular is wrong.<br /> you have to flip it from the earth that is moving to the sun which we are assuming is staying the same.<br /> like I said, for this question your foumula is flawed.<br /> my hitting some kick arse VE rum aint helping <br /> wish I was smart enough to draw it .<br /> alas I am only smart when I have to be <br />but the lil arrow from the top drawing to the bottom reenforces my statement<br /> as B moves away from the fixed point it does it at a linier motion.

 

[Mr.Ladyfish]

Re: Mathmatical Question on Earths Axis

When LF gets some spare time I'll have her explain it to you guys. She once explained to me that north is always straight up because when you look at a map the arrow always points to the top.

 

[rodbolt]

Re: Mathmatical Question on Earths Axis

yep<br /> thats why kids that wear their hats backwards are always lost.<br /> I always follow my hat brim so I always know what direction I am heading

 

[neumanns]

Re: Mathmatical Question on Earths Axis

The thought that the the axis is moving 207 miles a year just cracks me up...Especially since you believe that with such conviction!<br /><br />The magnetic poles are migrating but not a half mile a day. Magnetic north is moving 10-40 km a year. But magnetic north has no bearing on the earth's axis it is simply a magnetic field.It is also speculated The earth's axis is moving but at a MUCH slower pace! <br /><br />GQ, they have been trying to explain or even prove it for years...Perhaps you have a higher calling than trying to educate us since you have such a complete understanding and the mathmatical equations to prove it. I hope to see your work in scientific journal's some day. But till then I'll rest secure in the fact that that we here at iboats know somthing now that scient's have been trying to prove or disprove for decades....<br /><br />Or could it be that you misinterpited 3 inches for 3 degree's, if that is the case then perhap's we should forget the high school mathmatics and go back to remedial reading!<br />.<br />.<br />.<br />.<br />Care to take another shot at explaining it it?

 

[--GQ--]

Re: Mathmatical Question on Earths Axis

Originally posted by neumanns:<br />[QB] The thought that the the axis is moving 207 miles a year<br /><br /><br />Neumanns, no where did i say that. Go back and read again. Perhaps take a closer look at the second equation. I am assuming you don't understand the equation to come to such a conclusion. It's used to find distance between points on a linear surface. Due to the fact that Earth has a radius of 3959 miles, at 3 degrees shift objects closer to the pivot point movement is minimal. On the other hand objects on the outer edge travel a greater distance. <br /><br />Imagine you standing near the equator. If the Earth tilta 3 degrees, you are roughly 207 miles away from your original position. This is due to the fact that you are standing 3959 miles away from the pivot point. The further you are, the greater the distance.<br /><br />Professor Rod, I'm not reading you correct. You keep beating on the linear path thing. We are trying to find the distance of two points with respect to the sun. The circular sector between the point is not important. Imagine this. Let say you travel 10 miles to ship wreck point (A). Then you go on a wild goose chase to ship wreck point (B). The question is how far are you from your <br />launch position. We don't care what you do in between. See what I'm saying?

 

[--GQ--]

Re: Mathmatical Question on Earths Axis

For the record, I am not here to prove the Earth is drifting away from the Sun. Nor I'm i suggesting the Earth Axis shifting away at all. That would be laughable at best. I am merely trying to figure the distant a point travels due to 3 degrees shift. And maybe answers any temp. differences between the two points <br /><br />This is what I know to the best of my knowledge. The earth Axis spin on 23.5 degrees inclination. At some point it tilts away from the sun thus creating winter season in the northern hemisphere. Summer season as it tilts toward the sun. And two seasons in the transitions. The result 4 seasons cycle. Whether you believe it or not, more power to you.