Where is science going?

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thinkandmull

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There have been two threads on this site recently on flat earth society. I was wondering if anyone has seen this interesting thread. I has to do with Einstein more than with the Flat Earth Society:

youtube.com/watch?v=VNqNnUJVcVs

Geocentrists like to quote Einstein as saying that it doesn’t matter whether you say the earth revolves around the sun or vice verse. General relativity makes it relative/irrelevant. According to videos I’ve seen, Einstein believed that when you drop something the earth goes up to the object instead of the object going down, and this based on GR. But if I drop something on one side of the earth and someone drops something on the other side of the earth, which way will the earth go? This is so confusing for me. Is science/physics getting into the realm where lay people can’t even understand it anymore? Take non-Euclidean geometry. Is this saying there is no straight lines on a table? I have never understood why non-Euclidean geometry has been used at all
 
thinkandmull said:
There have been two threads on this site recently on flat earth society. I was wondering if anyone has seen this interesting thread. I has to do with Einstein more than with the Flat Earth Society:

youtube.com/watch?v=VNqNnUJVcVs

Geocentrists like to quote Einstein as saying that it doesn’t matter whether you say the earth revolves around the sun or vice verse. General relativity makes it relative/irrelevant. According to videos I’ve seen, Einstein believed that when you drop something the earth goes up to the object instead of the object going down, and this based on GR. But if I drop something on one side of the earth and someone drops something on the other side of the earth, which way will the earth go? This is so confusing for me. Is science/physics getting into the realm where lay people can’t even understand it anymore? Take non-Euclidean geometry. Is this saying there is no straight lines on a table? I have never understood why non-Euclidean geometry has been used at all
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Science reached that point in the early 1900s with Einstein.

Yet, despite all the Einsteinian and later corrections to the math, Newtonian approximations are good enough for heavy, slow-moving entities like our human bodies.

Likewise, it is true that on a spherical planet, there can be no Euclidean lines. But a normal tabletop is too small for the correction factors to matter.

ICXC NIKA
 
I understand how non-Euclidean geometry works on a sphere, but you can always put straight lines through the sphere, right? That is what my Catholic math teach told me in college. Even if space is curved, something perfectly straight can be put into it, right? 🤷
 
thinkandmull said:
I understand how non-Euclidean geometry works on a sphere, but you can always put straight lines through the sphere, right? That is what my Catholic math teach told me in college. Even if space is curved, something perfectly straight can be put into it, right? 🤷
Click to expand...
Of course, you can, but that would require digging a trench 🙂

ICXC NIKA
 
Well I posted this thread because science is now saying that up and down is relative, that whether the earth or sun is the center of our galaxy is relative, and if you watch the video I posted, it leads right into the idea that roundness and flatness of the earth are relative ideas.

off topic, they also say that the universe can be infinite and expand at the same time 🤷

How can the scientific method contradict common sense?
 
thinkandmull said:
I understand how non-Euclidean geometry works on a sphere, but you can always put straight lines through the sphere, right? That is what my Catholic math teach told me in college. Even if space is curved, something perfectly straight can be put into it, right? 🤷
Click to expand...
Does the line stay straight, when in the sphere, or will it conform to physics and curve, bend, distort?
 
Intellectually I can put a straight line through a sphere; that is, my imagination and reason can do that. I can even straighten my arm in space. Can’t I use Euclidean geometry on my finger? Or is **all **space a sphere inside a sphere inside a sphere… to infinity.?
 
A PBS science series on youtube said that the Lorenze transformation changed how we even see Newtonian relativity, which merely said that objects on the moon move at there own speed plus the speed of the moon in relation to us. It makes me wonder in scientists are really just messing with the public in order to establish their own rule over us
 
You can put a laser levelled straight line through, but what happens inside?

Considering everything is made of atoms, is anything really straight? Or is there a curve?

Are we conforming to the curvature of the sphere we know as earth?

Think of what happens when light hits a prism, or of the properties of light?
How does a wave travel?

Ps I am a Scientist, I can confirm we like messing with the perception of things.
We discover the amazing things of God, like Fractals, then try to duplicate them.
 
thinkandmull said:
Intellectually I can put a straight line through a sphere; that is, my imagination and reason can do that. I can even straighten my arm in space. Can’t I use Euclidean geometry on my finger? Or is **all **space a sphere inside a sphere inside a sphere… to infinity.?
Click to expand...
How does fire behave in Space?

Fire has its own properties, we are learning a lot about fire through bushfire complexes,

For example, large fire complexes create their own weather fronts.
You see flames, but you can feel radiant heat (and it will kill) several km in front of the complex, also the front devours oxygen to a life threatening degree.

No oxygen in space right? No weather fronts possible?
 
thinkandmull said:
Well I posted this thread because science is now saying that up and down is relative, that whether the earth or sun is the center of our galaxy is relative, and if you watch the video I posted, it leads right into the idea that roundness and flatness of the earth are relative ideas.

off topic, they also say that the universe can be infinite and expand at the same time 🤷

How can the scientific method contradict common sense?
Click to expand...
You can only tell how something is moving if you have a point that is static. Which isn’t possible. Everything is moving. So we simply say that, for example, Mars is moving away from us at a particular trajectory and speed so we can work out how to get a rocket there. But it would make no difference if we were to consider Mars static and us moving or a combination of the two.

You pays your money and makes your choice.

And it’s not the universe itself that is expanding (like blowing up a balloon). It’s space itself that is expanding. So you could have two objects that were static and the distance between them would actually be increasing without either of them having to move.

Common sense is quite useful if you want to estimate the trajectory of a rock thrown at something edible or the distance to a river but not much good when it comes to times. sizes and distances we have not evolved to comprehend at a gut level.
 
Bradski said:
You can only tell how something is moving if you have a point that is static. Which isn’t possible. Everything is moving. So we simply say that, for example, Mars is moving away from us at a particular trajectory and speed so we can work out how to get a rocket there. But it would make no difference if we were to consider Mars static and us moving or a combination of the two.

You pays your money and makes your choice.

And it’s not the universe itself that is expanding (like blowing up a balloon). It’s space itself that is expanding. So you could have two objects that were static and the distance between them would actually be increasing without either of them having to move.

Common sense is quite useful if you want to estimate the trajectory of a rock thrown at something edible or the distance to a river but not much good when it comes to times. sizes and distances we have not evolved to comprehend at a gut level.
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And since we cannot aim a spacecraft or design a scientific experiment by “gut,” it’s just as well.

Science can’t move fast enough for me.

ICXC NIKA
 
thinkandmull said:
There have been two threads on this site recently on flat earth society. I was wondering if anyone has seen this interesting thread. I has to do with Einstein more than with the Flat Earth Society:

youtube.com/watch?v=VNqNnUJVcVs

Geocentrists like to quote Einstein as saying that it doesn’t matter whether you say the earth revolves around the sun or vice verse. General relativity makes it relative/irrelevant. According to videos I’ve seen, Einstein believed that when you drop something the earth goes up to the object instead of the object going down, and this based on GR. But if I drop something on one side of the earth and someone drops something on the other side of the earth, which way will the earth go? This is so confusing for me. Is science/physics getting into the realm where lay people can’t even understand it anymore? Take non-Euclidean geometry. Is this saying there is no straight lines on a table? I have never understood why non-Euclidean geometry has been used at all
Click to expand...
I think all Einstein was saying is that the object which you drop, and the earth both move toward their common center of gravity. So the earth falls up, but only by a tiny distance as it’s so much more massive. When objects are dropped on opposite sides of the earth, the same rule applies, they and the earth move towards their common center of gravity.

Gravity is the name given to the curving of space and time in the presence of mass. The moon is moving in what is to it a straight line through space, but gravity curves the space so it moves in an ellipse. The path is called a geodesic. Easily the best explanation I’ve seen is this school teacher giving a low tech demo to colleagues. Over 35 million views. - youtube.com/watch?v=MTY1Kje0yLg
thinkandmull said:
Intellectually I can put a straight line through a sphere; that is, my imagination and reason can do that. I can even straighten my arm in space. Can’t I use Euclidean geometry on my finger? Or is **all **space a sphere inside a sphere inside a sphere… to infinity.?
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Yes, suppose you drill a tunnel through the earth from A to B. Even though it’s dead straight in the diagram, when you walk into it you’ll be going downhill and when you walk out you’ll be going uphill. Whereas if you walk overland from A to B, even though it’s a curve on the diagram, you´ll not go downhill or uphill.

 
Why has Euclidian geometry been replaced by non-Euclidean geometry in the first place. Euclid and those who expanded on his work in early centuries already dealt with curves
 
thinkandmull said:
Why has Euclidian geometry been replaced by non-Euclidean geometry in the first place. Euclid and those who expanded on his work in early centuries already dealt with curves
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Because we live upon a sphere, and the divergence of the two geometries is enough to matter when you need to follow an arc several thousand miles long? (such as at sea)

Also, Einsteinian space is curved, and not necessarily spherically.

ICXC NIKA
 
thinkandmull said:
Does anyone claim to understand what curved space even means?
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As was said earlier, it is not something we can grasp “by gut.”

We can, however, learn the math governing it, and see that it works just fine.

Curved space governs the orbits of astronomical bodies as well as the “gravitational lens” effect. It’s real.

ICXC NIKA
 
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