ELI5: Explain Like I'm 5

International Terrestrial Reference System and Frame

Okay kiddo, have you ever heard of maps? Imagine if the whole world was a giant map and we wanted to make sure everything was in the right place on this map. That’s what the International Terrestrial Reference System (ITRS) and Frame is all about!

The ITRS is like a special map that shows us where everything is on Earth – like countries, oceans, mountains, and even you and me! It’s used by scientists and engineers all over the world to help them find their way around and do cool things like explore space.

Now, the ITRS needs something called a “frame” to work properly. A frame is like a big “picture frame” that we can use to see everything on the map in the right spot. We need this frame because the Earth is always moving – it spins on its axis, it revolves around the sun, and it even wobbles a little bit!

So, scientists use special tools and satellites to measure how the Earth is moving and how everything on it is changing. Then, they use this information to adjust the frame for the ITRS so that everything is still in the right spot. This way, we can always find our way around the world and even beyond it!

In summary, the International Terrestrial Reference System and Frame is like a giant map of the world that helps scientists and engineers find their way around and do awesome things like explore space. The ITRS shows us where everything is on Earth, while the frame helps us keep everything in the right spot despite the Earth’s movements.