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23rd March 2017, 03:47 PM  #390114 / #1654  
unbowed before the chaos
Read my posts with the following stupid accent: a peninsula in the North Atlantic

Quote:
In the diagram, the point at the right represents the position of the viewer. The ball at the left represents the sun (or any other round thing in the distance). The two lines represent two lines of sight, one of them to one point on the apparent “edge” of the sun (or other round thing), and the other to the opposite point. The angle between those points is the “angular diameter” of the object in question. Got that so far? I’ve drawn the diagram to show an angular diameter of nearly 15 degrees. But the sun’s angular diameter, as viewed from the earth, is of course much less than that. It’s actually only about half a degree. The important thing is that this angular diameter can be measured very precisely. The angular diameter tells you something about the relationship between the object’s size and its distance from the viewer. Given the angular diameter, if you make an assumption about the size, you can find the distance. Alternatively, if you make an assumption about the distance, you can find the size. The actual math here involves trigonometry, which is far too advanced for any flatearther. But have no fear: The sun’s angular diameter is small enough that we can use a smallangle approximation. Angular diameter in radians ≈ actual diameter / distance to viewer. or Angular diameter in degrees ≈ (180 / pi) (actual diameter / distance to viewer). When you’re dealing with an angular diameter in the ballpark of half a degree, this approximation is good to within about one thousandth of one percent. (It gets even better as you deal with even smaller angles.) So the angular diameter of the sun is inversely proportional to the distance between the sun and the viewer. And this angular diameter changes very little over the course of a day. That immediately debunks your model, in which the distance to the sun varies greatly over the course of a day. In your model, the sun has to be something like 4400 miles from me at noon near the equinox, and 6200 miles from me four hours later. So its angular diameter should decrease by about 30% in that time – more than enough to be noticeable. (1/6200 is about 70% of 1/4400.) These big swings in distance are simply not what we observe. The angular diameter of the sun stays constant over the course of the day, to within one percent of one percent. And it’s the same (again within one percent of one percent) no matter where on earth it’s measured from. It follows immediately – from this simple observation – that distances between different points on the earth are always a tiny fraction of the distance to the sun. In other words, the distance to the sun is MUCH greater than the size of the earth. And yet, the sun's elevation angle (i.e., how far it is above the horizon) is different in different places on the earth at the same time. Given the huge distance to the sun, these observations can only work with a round earth. This much was figured out thousands of years ago, and indeed is obvious to anyone who isn’t completely hopeless at geometry. 

Yay from  Majiffy (23rd March 2017) 
23rd March 2017, 03:54 PM  #390116 / #1655 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

Angular diameter here assumes a known distance.
Fail. You can not use assumptions to prove assumptions.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 03:57 PM  #390119 / #1657 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

PH, Carl there is exposing himself, and laughing at those who are stuck in his bamboozle.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 03:59 PM  #390120 / #1658 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

But you have to assume a size to get a distance, or assume a distance to get a size.
Using the size assumption to prove the distance, then using the distance assumption to prove the size, this is not science. Assumptions can't prove assumptions, which is what all cosmology is.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 04:02 PM  #390121 / #1659 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

Your calculations also assume no effect from the various degrees of clarity in the atmosphere.
Its as if the below phenomenon does not exist in your world.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 05:12 PM  #390125 / #1662 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

You can't tell distance or size because of perspective.
Your calculations need assumptions, thus show us nothing without knowing actual size and/or distance.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 05:48 PM  #390127 / #1663 
unbowed before the chaos
Read my posts with the following stupid accent: a peninsula in the North Atlantic

Not from a single measurement, that's true. But when you measure the angular diameter of the same object as viewed from several different places at the same time, that is sometimes enough to figure it out.
We know distances between different places on the earth, at least roughly. We know that the angular diameter of the sun is almost exactly the same regardless of what point on the earth it's viewed from. If the sun were close by, those measurements would yield greatly different values for the angular diameter. But they don't. It follows, directly from these observations, that the distance to the sun is huge. Exactly how huge can't be determined from this much information alone. From what I've said so far, it could be 10 million miles away, or 100 million, or 1 billion, or much more. (And all of these different distances would lead to different conclusions about its size.) But whatever it is, it's much greater than the size of the earth. 
Yay from  Majiffy (23rd March 2017) 
23rd March 2017, 05:55 PM  #390131 / #1664  
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

Quote:
Again, assumptions can't prove other assumptions, at least in real science. Btw, how long do you think it takes for the earth to complete one revolution on its axis?
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 

23rd March 2017, 05:57 PM  #390132 / #1665 
Grissle Hardman, The MR Mafia Honey Badger
Read my posts with the following stupid accent: Buffalo, NY

She found out being a bookie actually involves a lot of exciting spreadsheet formulas.
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Herpy derpy jerfy! ʘᴥʘ pledged my daily allegiance to Satan and pearshaped air hockey turntable earth Vivere diu rebellionus! Proud propagator of the "fire for warmth" myth 
Yay from  nostrum (24th March 2017) 
23rd March 2017, 06:07 PM  #390133 / #1666  
unbowed before the chaos
Read my posts with the following stupid accent: a peninsula in the North Atlantic

Quote:
Quote:


Yay from  Majiffy (23rd March 2017) 
23rd March 2017, 06:29 PM  #390134 / #1667 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

Wait, you think there is no difference between two points on a sphere and two points on a plane?
The earth is revolving on its axis, but whatever, yes, how long does it take?
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 06:48 PM  #390137 / #1668  
unbowed before the chaos
Read my posts with the following stupid accent: a peninsula in the North Atlantic

Quote:
Quote:
To rotate a full 360 degrees, it takes about 23 hours, 56 minutes, 4 seconds. 

23rd March 2017, 06:51 PM  #390138 / #1669  
Grissle Hardman, The MR Mafia Honey Badger
Read my posts with the following stupid accent: Buffalo, NY

__________________
Herpy derpy jerfy! ʘᴥʘ pledged my daily allegiance to Satan and pearshaped air hockey turntable earth Vivere diu rebellionus! Proud propagator of the "fire for warmth" myth 

23rd March 2017, 07:04 PM  #390140 / #1670 
redolent needling balm
Read my posts with the following stupid accent: Appalachia, CSA

And so, little Billy, that's why they call them revolvers and not rotators.
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"immigrants should be required to spaak Australian... or Mooneese, equally" * ^ * ^ * ^ * ^ * ^ * I smell the STANK OF DEF! 
Yay from  Majiffy (23rd March 2017) 
23rd March 2017, 07:15 PM  #390144 / #1671 
Grissle Hardman, The MR Mafia Honey Badger
Read my posts with the following stupid accent: Buffalo, NY

What about repeaters though
__________________
Herpy derpy jerfy! ʘᴥʘ pledged my daily allegiance to Satan and pearshaped air hockey turntable earth Vivere diu rebellionus! Proud propagator of the "fire for warmth" myth 
23rd March 2017, 07:25 PM  #390146 / #1672 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

re·volve
rəˈvälv/ verb gerund or present participle: revolving move in a circle on a central axis. ... and if you want to get more pedantic, rotate means to move in a circle, and the earth is said to move in an ellipse, which is an oval. So you are wrong with the standards you are trying to place on word usage here. Of course it matters, because the two of you are on a curved surface, thus the angle you are viewing the object is different. You are trying to use flat earth parameters to prove the size and distance of the sun, lol.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 07:26 PM  #390147 / #1673 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

Btw, did you find the part in your calculation that takes into account the atmosphere?
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 
23rd March 2017, 07:52 PM  #390149 / #1675 
Life is just a bowl of cherries
Read my posts with the following stupid accent: Pleasant Living

No, you are using assumptions to prove assumptions.
Its just like the fossils date the rocks, and the rocks date the fossils. Its nonsense, and certainly not close to real science. You live in a science fiction world which does not follow the rules established within the scientific method.
__________________
The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. Albert Camus 

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