Hey everyone! Have you ever wondered why, even though the Earth looks flat when you stand on it, we all know it’s actually round? Today, we’re diving into some cool, easy-to-understand proofs that show our home is definitely a sphere!
One of the simplest proofs is watching a ship sail away. Ever noticed how the hull, the bottom part, disappears before the mast and sails? If the Earth were flat, the entire ship would just get smaller and smaller until it vanished, but here, it looks like it’s sinking over a curve!
Think about stargazing! If you travel from, say, Canada to Australia, you’ll see totally different constellations. In the north, you might see the Big Dipper, but in the south, you’ll find the Southern Cross. This happens because the Earth’s curve blocks your view of stars below the horizon, depending on where you are.
Next, lunar eclipses. During a lunar eclipse, the Earth passes directly between the Sun and the Moon, casting a shadow on the Moon’s surface. And guess what? That shadow is always perfectly round! The only shape that consistently casts a round shadow from any angle is a sphere.
How about time zones? When it’s noon in London, it’s evening in Tokyo and morning in New York. This global difference in time is only possible if the Sun is shining on different parts of a round Earth at any given moment, continuously moving across its surface.
And finally, if you’ve ever flown on a plane or stood on a very tall mountain, you might have even seen it for yourself: a slight, undeniable curve on the horizon. It’s subtle, but it’s there, evidence of our planet’s true shape.
Beyond these observations, we now have undeniable proof: countless photos and videos from space, taken by astronauts and satellites, clearly show our Earth as a magnificent, spinning sphere.