Earth is flat

You wouldn't need a curved glass to see a curvature on the surface, you can even see this on the Mt Everest view, it may be slightly less but it's there. There's no curved glass involved. Remember Earth is large enough to feel flat, try zooming in a lot on Google Earth on a spherical picture, it'll just look flat. The Russians landed a probe on the moon, it was spherical and yet it still felt flat on surface? Earth should be the same then. Shadows differ from place to place Flat earth vs Curved earth https://gyazo.com... Eratosthenes carried out this experiment to determine the circumference of the Earth, already assuming its spherical shape; incidentally, the proof of such being consequential of the procedure. However, a demonstration can be achieved by a simple, local experiment (as opposed to having a party venture to a distant enough point): Take a piece of card (A3, or so), attach two obelisks to the card by their bases and, with a light source, produce shadows - now, slowly bend the card so that it becomes convex (that is, the side with obelisks attached bulging out) and watch the effect. You can see farther from higher Flat earth vs Curved earth https://gyazo.com... There are numerous other ways of demonstrating that the Earth is round at least, from analysing the center of gravity to simply observing the other round objects that are visible in space; but I believe these illustrations to be the simplest to comprehend. Another way is the triple-right triangle: You move in a straight line for a long enough distance Turn right 90" degrees, walk in that same direction for the same distance Turn again to the right 90" degrees and walk again the same distance After this you'll end up at the starting point. This is not possible on a flat surface since you'd just be "drawing" a half-finished square. https://gyazo.com... Responding to where you said if the Earth was rotating, objects would feel it or move slightly, no this would not happen because the Earth is moving at a speed that remains the same, it will only be felt when slowed down, similar to a plane, more smoother. The Moon Now that humanity knows quite positively that the Moon is not a piece of cheese or a playful god, the phenomena that accompany it (from its monthly cycles to lunar eclipses) are well-explained. It was quite a mystery to the ancient Greeks, though, and in their quest for knowledge, they came up with a few insightful observations that helped humanity figure out the shape of our planet. Aristotle (who made quite a lot of observations about the spherical nature of the Earth) noticed that during lunar eclipses (when the Earth"s orbit places it directly between the Sun and the Moon, creating a shadow in the process), the shadow on the Moon"s surface is round. This shadow is the Earth"s, and it"s a great clue on the spherical shape of the Earth. Since the earth is rotating (see the "Foucault Pendulum" experiment for a definite proof, if you are doubtful), the consistent oval-shadow it produces in each and every lunar eclipse proves that the earth is not only round but spherical " absolutely, utterly, beyond a shadow of a doubt not flat. Remember they may have or may not have sent men to Earth but Russia did definitely throw a probe at it's surface showing it appear flat but it's actually spherical, if the moon can do it and is a lot smaller than Earth but slightly spherical because of the small size. Why can't Earth do it? It's very easy to see how the Earth is round and spherical, it's much more possible than a flat Earth. Send me a picture on what Earth looks like. It's not a flat disk or a pancake, otherwise Earth would have an edge to fall off. Other planets are spherical, however do not compare this to a pool table with 8-balls on it. An 8-ball and a pool table are different types of objects. Earth and other planets are the same type of object. Is there a flat ball? No, then there shouldn't be a flat planet. So really, the Earth is round.