During a total solar eclipse, the Moon is right between the Earth and the Sun. Thus, the near side of the Moon does not receive any sunlight. But while it is dark, it still gets some light reflected by the surface of the Earth. This phenomenon is called Earthshine.
Some flat-Earthers argue that a solar eclipse is not caused by the blocking of the Sun by the Moon, but by another, mysterious celestial body. The reason is that eclipses are incompatible with their beliefs about the motion of the Sun and the Moon.
Earthshine proves that they are wrong.
Continue reading “Earthshine Proves the Moon Obscures the Sun During a Total Solar Eclipse”
The argument from incredulity occurs if someone refuses to accept an argument simply because he cannot personally understand it. This is a logical fallacy very frequently used by flat-Earthers.
Continue reading “Argument from Incredulity”
In photography, the starburst effect gives the illusion of light rays from strong light sources in an image. The effect happens when the lens’ aperture is not a perfect circle, and it gets more pronounced under narrower aperture.
Flat-Earthers often find themselves looking for any peculiarity —no matter how small or unbelievable— in order to discredit any picture they deem unacceptable to their misguided causes. One of this peculiarity is the starburst effect.
Continue reading “The Starburst Effect is not Proof of CGI”
Aether was the hypothetical material that fills the region of space. It was assumed to be the medium that allows light and gravity to propagate in space. Throughout the late 1800s and early 1900s, there were experiments that attempted to prove if the aether actually exists.
Flat-Earthers (and geocentrists alike) often use the results of these experiments in order to support their case that the Earth is stationary. But they are wrong. These experiments were conducted to prove if the Aether theory, or if one of its competing hypotheses —like the Special Relativity— better explains reality.
Continue reading “The Aether Experiments Are Not Evidence of Flat and Stationary Earth”
In 1870, Alfred Russell Wallace proved the curvature of the Earth and answered the challenge put forward by a flat-Earther, John Hampden.
Continue reading “The Bedford Level Experiment Proved the Curvature of the Earth”
Wi-Fi is one of the most common ways of getting connected to the Internet. It is usually used in most short-range local network. But if using specialized equipment, Wi-Fi can be used over very long distance, even over hundreds of miles.
When designing a long-range Wi-Fi link, the curvature of the Earth needs to be accounted for.
Continue reading “Long-Range Wi-Fi and the Curvature of the Earth”
A hot air balloon rises because it has buoyancy. Buoyancy is the upward force that is exerted on the trapped hot air because its density is lower than the surrounding air. If buoyancy is greater than the force of gravity — or the weight of the balloon—, then the balloon will rise.
The basic physics escape most flat-Earthers. To them, the fact that a hot-air balloon rises is an ‘evidence’ that gravity does not exist. They believe things go up or down because of density. They are wrong.
Continue reading “Hot Air Balloon and the Force of Gravity”
Flat-Earthers often point out to a ‘map’ that they think represents ‘the real Earth’. At a glance, it looks identical to the azimuthal equidistant map centered on the north pole. But both maps are in fact fundamentally different. The polar azimuthal equidistant map is not the so-called flat-Earth map.
Continue reading “The Polar Azimuthal Equidistant Map is NOT the Flat Earth Map”
The film ‘Dark Side of the Moon’ is a mockumentary. It is fictional but presented as if it is a real documentary. The film features guests like Donald Rumsfield, Henry Kissinger, Alexander Haig, Vernon Walters, Buzz Aldrin, and Stanley Kubrick’s wife. In the film, they all pretend that the Moon landings are faked, and created in a studio by Stanley Kubrick.
There are many cut versions of the film circulated on the Internet. Usually, the ‘giveaways’ are cut to make the film more believable. Then, the film is presented as ‘evidence’ that Moon landings did not happen. Unfortunately, many believe these unfaithful versions of the film and don’t realize the events in the film are completely fictional.
Continue reading “The Mockumentary ‘Dark Side of the Moon’”
An ice dome is one of many forms a glacier can take. It is an upright ice surface in the higher altitude portions of an ice cap or an ice sheet. There are many such features found on icy terrain. And Antarctica is no exception.
When an ice dome gets mentioned, flat-Earthers often confuse it with the mythical dome enclosing the Earth as described in most flat Earth model. No such dome actually exists.
Continue reading “Antarctic Ice Domes: Not The Dome That is Supposedly Enclosing the Earth”