We all took it up when we were in elementary. Heck, pretty sure it came up a couple of times in high school or university too but we never bothered to distinguish between the two. If you are one of those people who paid extra attention to your Science class, then congratulations buddy. On the other hand, if you’re one of the ones who still get a little confused, you aren’t alone. In fact, majority of the Earth’s population often interchange the two. Don’t worry, the reign of terror will end, because we’re here to clear the air. We’ve got you covered with 10 fast facts about the differences between the Earth’s rotation and its revolution. So the next time you run into an old friend and happen to stir up a conversation about the Earth and its rotation and revolution – you know, normal stuff – go ahead and mention a couple of things you learned from this good read. You’re welcome.
Fact 1: More often than not, people get confused when it comes to the terms ‘rotation’ and ‘revolution’. Simply put, Rotation is defined as the spinning of the Earth, or any object for that matter, on its own axis.
Fact 2: Revolution on the other hand is defined as the movement of the Earth, or any other object for that matter, around another body or object. In this case, it’s the movement of the Earth around the Sun.
Fact 3: The rotation of the Earth around its axis is what causes the 24-hour phenomena of daytime and nighttime over the planet.
Fact 4: The rotation of the Earth, on the other hand, is what causes the difference in time zones in all of the Earth’s continents and countries.
Fact 5: The Earth, during the course of its revolution experiences summer and winter depending on which hemisphere of the Earth is closer to the Sun, and which hemisphere is farther. The closer it is to the sun causes summer, while it being further causes winter for some parts of the Earth. When both of the Earth’s hemispheres are equidistant from the sun, the world experiences spring, autumn, or fall.
Fact 6: When the Earth is on its rotation around its axis, the planet follows a the West-to-East path.
Fact 7: The path that the Earth takes while on its revolution is more of an ellipse, resulting into the Earth being closer to the sun on most days and further during other times. This causes seasonal fluctuations, which we know as the four seasons.
Fact 8: When the Earth rotates around its axis, it does so at a 15 angular degree per hour. It takes approximately 24 hours for the Earth to complete one rotation.
Fact 9: How long does it take for the Earth to complete a revolution, you ask? The Earth needs 365.25 days! It takes that long in order for the Earth to complete a revolution at an elliptical angle with the sun as its focal point.
Fact 10: Contrary to popular belief, the Earth is not a perfect circle. This is because the Earth’s rotation around its axis is responsible for its being slightly oblate rather than have a spherical shape.