BSSN formalism
Okay kiddo, let's talk about something called BSSN formalism. Basically, it's a way that scientists can understand how gravity works in the universe, and it's really complicated.
You know how when you throw a ball up in the air, it goes up and then comes back down again because of gravity? Well, imagine that instead of a ball, you're throwing around something really, really big, like say, an entire planet.
Now, imagine that you're trying to figure out how the gravity of that planet affects everything around it - other planets, stars, and even space itself. That's what scientists do with BSSN formalism.
They use a bunch of really complicated math equations to describe how the planet's gravity affects all of these different things. It's kind of like a puzzle, where they fit all of the different pieces together to get a complete picture of how everything is connected.
One thing they do is break down the gravity of the planet into smaller pieces, kind of like breaking down a puzzle into smaller pieces. Then they can figure out how each piece fits with the others.
It's really, really hard work, but it helps scientists understand some of the biggest questions about the universe - like how stars are born and how black holes work. So, it's kind of like a big, complicated puzzle that scientists solve to figure out how everything in the universe fits together.
You know how when you throw a ball up in the air, it goes up and then comes back down again because of gravity? Well, imagine that instead of a ball, you're throwing around something really, really big, like say, an entire planet.
Now, imagine that you're trying to figure out how the gravity of that planet affects everything around it - other planets, stars, and even space itself. That's what scientists do with BSSN formalism.
They use a bunch of really complicated math equations to describe how the planet's gravity affects all of these different things. It's kind of like a puzzle, where they fit all of the different pieces together to get a complete picture of how everything is connected.
One thing they do is break down the gravity of the planet into smaller pieces, kind of like breaking down a puzzle into smaller pieces. Then they can figure out how each piece fits with the others.
It's really, really hard work, but it helps scientists understand some of the biggest questions about the universe - like how stars are born and how black holes work. So, it's kind of like a big, complicated puzzle that scientists solve to figure out how everything in the universe fits together.