Prove the Earth is round

Hello xouper,

Thanks for doing hard work. Actually, I want to find out how much ship will go down or invisible due the assumption that earth is round, matched with our visual capability by naked normal eyes. I think we can not take visual capability to see complete & clear ship more then 1/2 Km considering atmospheric hazyness, moisture of sea etc.

Some more factors are to be considered as under:-

1. Height of Sea Waves.(.5 to 3 M)

2. Differance in water pressure on ship near the beach & in deep Sea due to differance in depth.(more pressure less sinking)

3. Concentration of earth particles & polluted substances in Sea water near & far of beach.(more concentration less sinking)

4. Differance in atmospheric pressure near & far of beach on ship(may be more on deep sea due to more openness leading it to sink more).
 
Kumar: Thanks for doing hard work.
Click to expand...
You're welcome. And thanks go to 69dodge and Terry also for the same hard work, even though they didn't show it all.

I think we can not take visual capability to see complete & clear ship more then 1/2 Kms.
Click to expand...
I think we can. When I used to hang out at the beach in Fort DeSoto, Florida, we could easily see the freighters coming out of Tampa Bay under the Sunshine Skyway Bridge (which was about 8 km away) and then watch them disappear west over the horizon into the Gulf of Mexico.
 
xouper,

Pls see the previous message as I edited a bit.

There can be a differance in looking the ship (just an impression) coming ( from the fort/lighthouse Or from the beach) & look whole ship clearly to find out or measure its invisibility/sinking due to earth's slope.
 
Kumar: 1. Height of Sea Waves.(.5 to 3 M)
Click to expand...
If the waves are 3 meters that far out (8 kilometers), then it's simply not a good day to be at the beach watching ships.

2. Differance in water pressure on ship near the beach & in deep Sea due to differance in depth.(more pressure less sinking)

3. Concentration of earth particles & polluted substances in Sea water near & far of beach.(more concentration less sinking)

4. Differance in atmospheric pressure near & far of beach on ship(may be more on deep sea due to more openness leading it to sink more).
Click to expand...
I hope you aren't suggesting these as possible explanations for why a ship disappears over the horizon.
 
Originally posted by Kumar
2. Differance in water pressure on ship near the beach & in deep Sea due to differance in depth.(more pressure less sinking)
Click to expand...
Difference in depth? That doesn't matter at all. The ship is always on the surface. It doesn't know how deep the water is. As long as there's enough water to float it, that's all it cares about.
4. Differance in atmospheric pressure near & far of beach on ship(may be more on deep sea due to more openness leading it to sink more).
Click to expand...
I can't imagine atmospheric pressure differs significantly. And, anyway, it wouldn't matter. If the air pushed down harder on the ship, it would also push down harder on the water. So, no difference in the ship's height above the water level.
 
While he runs a perfect circle
And he wears a perfect smile.....

His score is a perfect zero.

BillyJoe
(And the Earth is still round)
 
SquishyDave: Hmmm, as I understand it, to experience this personally requires you to find an ocean, find a sail boat, or at least a boat with a tall mast or structure, get some good binoculars or a telescope on a tripod, watch as the boat sails away, and see the bottom of the boat disappear before the top of the mast.
--------------------------------------------------------------------------------

xouper: This effect can be experienced with the naked eye, no telescope or binoculars required.
Click to expand...
What we experiance of the bottom of the boat disappear before the top of the mast, can be due above mentioned effects also.

Conclusion: Any theory, system or therapy can be doubted & disapproved in this manner wheteher that is 'Science or Homeopathy or other Sprituals'. Do give respect to all long existing systems or things like the ancesstor's work.
 
Kumar: What we experiance of the bottom of the boat disappear before the top of the mast, can be due above mentioned effects also.
Click to expand...
If you are referring to the effects you posted and labelled 1, 2, 3, and 4, then, no, they do not explain how a ship can disappear over the horizon. When a ship goes over the horizon, it vanishes completely from sight. In order for your explanations to apply, the ship would have to be completely under water in order to disappear from sight. And this clearly does not happen. Your proposed explanations are simply nonsense and do not hold up to even the simplest scrutiny (not to mention being seriously flawed scientifically).
 
Xouper,

I do not mean ship disappear in horizon. I mean that we can see the ship clear & sharp just 1/2 Km unabling us to watch its bottom from the naked eyes. If we agree on slope per Km as 8 Cms then bottom of the ship will be invisible just 8/16 cms. But this much invisibility can be effected by other factors as I mentioned.
 
Originally posted by Kumar
I do not mean ship disappear in horizon. I mean that we can see the ship clear & sharp just 1/2 Km unabling us to watch its bottom from the naked eyes. If we agree on slope per Km as 8 Cms then bottom of the ship will be invisible just 8/16 cms. But this much invisibility can be effected by other factors as I mentioned.
Click to expand...
How did you arrive at the distance of 1 or 2 km? Ships are pretty big, so you can see them from farther away than that.
 
Kumar: I do not mean ship disappear in horizon.
Click to expand...
Well, that's what the rest of us are talking about. Ships disappearing over the horizon is the proof you asked about that the Earth is round. Ships do literally disappear completely from sight after going a small number of kilometers away from the observer.

I mean that we can see the ship clear & sharp just 1/2 Km unabling us to watch its bottom from the naked eyes. If we agree on slope per Km as 8 Cms then bottom of the ship will be invisible just 8/16 cms.
Click to expand...
We did not agree that the slope is 8 cm per kilometer. We only agreed that the slope at one kilometer is 8 cm. At other distances the slope is different. For example, the slope at 20 kilometers is not 8 cm.


[note for math pedants - yes I am using the word slope incorrectly, since I am willing to make allowances for Kumar's intended meaning rather than argue about the jargon.]
 
Sadly Kumar may be on to something, the inability to see the bottom of a ship could conceivably be due to diffraction like a mirage. This is if course as likely as it being due to the slope in the ocean, which of course would be sloped due to gravitational attraction in a flat earth scenario, unless of course gravitational attraction is nothing to do with mass.
 
xouper said:

We did not agree that the slope is 8 cm per kilometer. We only agreed that the slope at one kilometer is 8 cm. At other distances the slope is different. For example, the slope at 20 kilometers is not 8 cm.
Click to expand...

A rule of thumb used by my dad in the navy which, if you can be bothered to do the maths works out to be a pretty close approximation is:

distance to horizon in miles approx = square root (height above sea level in feet)

thus something 70 feet tall would just be visible by someone 8 miles away (assuming their eyeline is 5ft above sea level)
 
workings out as follows.....

height - h
distance - d
radius of earth - r

(r+h)^2 = r^2 + d^2 [pythagoras]

r^2 +2rh + h^2 = r^2 + d^2

d^2 = h^2 +2rh

assuming that h (height of observer) is << than r (radius of earth), a fair assumption in most shipwatching circumstances)

d^2 approx.= 2rh

d = (2x3963(miles)x5280(feet) x h)^0.5

d = 6469 * h^0.5 (number of feet in mile = 5280 so as first order approx)

d(miles) = h^0.5 (feet)

someone with (even) more time than I has worked out some values using a less simplistic derivation...

http://www.people.virginia.edu/~jlb8e/puzzlers/elevation.htm
 
Kumar said:
What we experiance of the bottom of the boat disappear before the top of the mast, can be due above mentioned effects also.

Conclusion: Any theory, system or therapy can be doubted & disapproved in this manner wheteher that is 'Science or Homeopathy or other Sprituals'. Do give respect to all long existing systems or things like the ancesstor's work.
Click to expand...

Uh... Kumar. You can't come up with goofy solutions (that don't work either), say they work, and then say because of that anything else you say works. That's not how science really works.

You see... I was asking people to prove to an idiot that the Earth was round.... not a normal person.

A normal person can see pictures of Earth from these things we call "satellites". Now this is beyond our common sense proofs, the use of shadows to show it, the fact that all other large objects in our solar system are spherical, etc.

And the simple statement that if I start here, I can fly all the way around the Earth and back to the point where I started.

The evidence (to a normal person, not an idiot) that the Earth is round is overwhelming.

The evidence that homeopathy or some of these other fanctiful ideas of yours are true is very close to NIL (in fact, there's good evidence the other way).

This is not because scientists HOPE the evidence will come out this way. It is because that is the way reality works.

But, of course, I'm arguing with an idiot so nevermind.
 
You can speak in a language taught to him. Get me the result of following mentioning first & then talk:-

Some experiments to check homeopathic efficiency;

1. Go to a homeopth when sick, keep faith in it & experiments the remedies.

2. Slect some 4 biggest idiots among many idiots. Send them each towords four directions all over the earth, give them one/few big note books with pens. Ask them to visit all homeopathic clinics & ask only few question from the available patients as under:-

(a) Why they came there, when so much publicity contrary to homeopathy, don't you believe in scientific findings?

(b) If you take homeopathic treatment, if yes since how many years?

(c) Are you satisfied & healthy with the treatments?

(d) Do you get adverse or side effects?

(e) How much you spend on this treatment?

(f) Do the homeopath attend properly & gives sufficient time or not?

(g) Do you feel natural repulsion to visit here or not?

(h) Remarks.......

If the earth is round as you say then they will reach to the same point after some time. They can also take planes, vehicles etc if can afford. When they come back then average the results. If it is more than 50% it means homeopathy works otherwise not.

Then you again send them to all the directions with note books & pens to genral public with following simple questions:-

(a) Wheter you have seen full earth by naked eye in my style?

(b) If above awnser is yes! then if it is round or flat??

Just simple experiments which an idiot can also do
 
On a flat, round earth, say, with the same surface area (on one side only please) as the spherical earth's surface area (~200,000,000 sq. miles), then require that the density and volume of the flat and spherical earths be equal, then the depth of the flat earth, given its area of ~200,000,000 sq. miles, would be ~1350 miles, given a spherical earth's volume of ~270 billion cubic miles.

How would this flat earth's gravity act upon us? If I'm standing near the edge, would I be able to stand, but be forced to counter a lean toward the centre? Would water cascade off the edge or flood inexorably toward the centre. Is the earth a cheesy economy flipper, with us on one side and all the homeopaths on the other, or is it single-sided deluxe DVD pressing with 6.1 channel DTS?

I have read Discworld, but for the purpose of this post, the Great Atuin and the Elephants are "resting" and their mass is this not a component.
 
You must log in or register to reply here.

Back
Top Bottom