An anonymous reader sent in the following:
“Flat earth. …no curvature is seen in high altitude balloon footage. ..the coriolis effect is a myth, no scientific experiments ever proven the spins ,no real pictures of earth from space. the moon landings were faked …people have taken pictures of objects from 60 plus miles away. ..I can go on but I would like you guys to do the research and see for yourself”
Lets address these points one at a time.
According to optical researchers, while we can fool ourselves into thinking we see the curvature of the Earth from high mountains, this is usually wishful thinking.
You should be able to detect it from an airplane at a cruising height of around 10,600 meters (35,000 feet), but you need a fairly wide field of view (ie 60 degrees) and a virtually cloud-free horizon. The reality is that clouds, hills and mountains mean we rarely get to see the kind of perfectly flat horizon where the curve would be most obvious.
However, you can detect the curve of the Earth from ground level at the coast with a pair of binoculars – just look for distant ships on the horizon and you’ll see that their hulls start to disappear before their masts and other superstructure. Ancient Greek scientists, who spotted this without any optical aids, used this to conclude that the Earth was spherical. This can be observed in the photograph of the three ships. This cannot be dismissed by claims of ‘perspective’ or ‘parallax’.
The coriolis effect is a myth, no scientific experiments ever proven the spins
Gaspard-Gustave Coriolis (1792-1843) was a French mathematician and physicist who discovered the Coriolis effect (also known as the Coriolis force) in 1835 that affects the movements of winds in the atmosphere and currents in the ocean.
A reproducable experiment (assuming that you have a friend in the opposite hemisphere) that provides irrefutable proof was done by Destin from Smarter Every Day and Derek Muller from Veritasium, and they went to great lengths to show it. Very great lengths: literally opposite sides of the Earth.
They set up identical pools, one in the US and one in Australia, and drained the water from them. The observed effect was exactly what would be predicted based on coriolis effect. They created two videos, meant to be seen side by side. They are not just videos; there is a narrative that explains what is going on as it’s going on. To view, go to Smarter Every Day.
No real pictures of earth from space
The Apollo program provided one of the most popular earth photographs and many other high-resolution space and moon photographs using a 70mm Hasselblad camera. Real film photographs (not digital photographs) from Apollo missions 4 through 17 can be seen HERE.
As for why present-day photographs need to be composites (NOT CGI), that’s fairly simple. Many orbiting satellites are too close to the surface to make a single-frame photograph of the earth without an extreme wide-angle lens. Such a lens would introduce severe image distortion. Multiple ‘swath’ images are stitched together from multiple satellites to produce a whole-globe view.
For a deeper understanding of this, forget the camera and picture yourself on a space ship. The average field of view of the human eye is 135 degrees. A high value for a rectilinear image in DX format is only 109.2 degrees. (10mm lens focal length) Considering these angles, it’s not hard to see that in order to take a single-frame photograph of the Earth, horizon-to-horizon, the distance ‘L’ in the graphic needs to be a fairly large number.
Additionally, composite pictures (again, NOT CGI) are necessary because satellite cameras are designed to capture the most accurate images possible. To do so, often visible light pictures are shot separately in three frequency bands representing red, green and blue. The three images are combined to form a full color image. This is no different from what your digital camera does, except that your camera does it in one step. NASA does not conceal this fact.
The moon landings were faked
Demonstrably untrue, and we’re unsure why this point was included in a primarily flat-earth request.
There is photographic evidence of the occurrence, on the order of thousands of film-based photographs. Again, as above, see photographs from Apollo missions 4 through 17 HERE.
The photograph on the left was taken with the Hasselblad 70mm camera.
Additionally, there is physical evidence.
On three of the Apollo landings, 11, 14 & 15, Laser Light Reflectors (photograph on the right) were left behind for experiments from observatories
around the world. These were placed on the moon by hand and aligned with the earth in the sky. As the moon is in acaptured rotation, the earth doesn’t move in the moon’s sky. Lasers are fired toward the three sites on the moon and a reflection is made back to the telescope every time. If a laser is aimed at any other part of the moon, nothing comes back.
These reflectors are the only US experiments still functioning on the surface of the moon.
People have taken pictures of objects from 60 plus miles away
Accurate, but it doesn’t indicate a flat Earth.
The effect that allows this to happen is called Atmospheric refraction, which is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of altitude or temperature. Further, when a temperature inversion occurs the level of refraction can be greatly enhanced.
If, however, this was to be taken as proof of a flat Earth, such observations would be constant, as opposed to extremely infrequent occurrences. They are not.
In closing, the assertions made in the request represent no challenge whatsoever to the oblate spheroid Earth model. To be called ‘evidence’, something must first be accurate, and second, point to one and only one conclusion above all others. None of the statements in the request meet both of these requirements, and all but one doesn’t even meet the first requirement.
Thanks for reading