Brightness of a Total Lunar Eclipse

“Looking at the pictures of the progression of a lunar eclipse, the Moon turns red, but there’s no apparent change of brightness of the Moon as it progresses from full moon to total eclipse. Therefore, a total lunar eclipse cannot be the result of the Earth casting its shadow on the surface of the Moon.”

Some flat-Earthers —presumably never seen a total lunar eclipse in person before— actually claim that.

Continue reading “Brightness of a Total Lunar Eclipse”

Lunar Phase and Lunar Eclipse

Apparently it is a very common misconception that the phases of the Moon is caused by the Earth’s shadow. Not only among flat-Earthers, but the general public as well. The difference is that flat-Earthers will usually jump to conclusion, and have some outlandish interpretation about this.

In reality, the phases of the Moon happen because we see a different sunlit part of the Moon at different time. Not because it is over the shadow of the Earth.

Continue reading “Lunar Phase and Lunar Eclipse”

Not to Scale: Illustration of the Solar System

Practically every illustration showing the Sun, Earth, and Moon is drawn not to scale. The reason is that the sizes of celestial bodies are far too small compared to the distances between them.

Flat-Earthers sometimes use this fact to point out the alleged “failure of modern science” to describe celestial bodies, or even “a mean to deceive us all.” However, the real reason is just that it is practically impossible to create a model of the solar system in the actual scale, using static images, that still effectively describes the objects it is trying to explain.

Continue reading “Not to Scale: Illustration of the Solar System”

Non-Stop Long-Haul Flight Routes in the Southern Hemisphere

There are many non-stop long-haul flight routes between two locations in the southern hemisphere, all without crossing the northern hemisphere. These routes can only exist if Earth is a sphere.

Some flat-Earthers claim there is no non-stop long-haul flights between two locations in the southern hemisphere. Flights need to make a stop in a location in the northern hemisphere because the distance will be too far and such flight will traverse the northern hemisphere, or more accurately, the center of the Earth according to their model. They are wrong. There are many such flight routes.

Continue reading “Non-Stop Long-Haul Flight Routes in the Southern Hemisphere”

Flat-Earth Ideology and The Fallacy of Lonely Fact

Flat-Earthers often commit the fallacy of ‘hasty generalization’. They would draw the conclusion from limited sample that fail to represent the entire population. Sometimes they would even draw the conclusion from a single case, and it becomes the fallacy of ‘lonely fact’.

Furthermore, they would deliberately cherry-pick cases that support their position, and use those to disprove the other cases that are against their position.

Continue reading “Flat-Earth Ideology and The Fallacy of Lonely Fact”

Star Trail: Evidence the Earth is a Sphere and Rotating Around Its Axis

In the northern hemisphere, if we look at the sky to the north, we can observe stars rotate counter-clockwise around a point. This axis of rotation is not visible from observers in the southern hemisphere.

On the other hand, in the southern hemisphere, if we look at the sky to the south, we can observe stars rotate in the opposite direction. Conversely, this axis of rotation is not visible from observers in the northern hemisphere.

This motion of the stars cannot possibly happen in a flat-Earth. The motion of the stars is a proof that the Earth is round and rotates around its axis.

Continue reading “Star Trail: Evidence the Earth is a Sphere and Rotating Around Its Axis”