Bathyscaphe Trieste
Imagine there's a big metal ball. This ball is called a bathyscaphe trieste. It's like a car that can go really, really deep into the ocean, farther down than any other kind of car can go.
The bathyscaphe trieste has two parts: the top part is called the cabin, and that's where people go when they go for a ride in the bathyscaphe. The bottom part is called the 'ballast'. The ballast is filled with water or air, depending on whether the bathyscaphe is going up or down.
The bathyscaphe trieste is special because it can dive down deeper than anyone thought was possible. It can go down to the very bottom of the ocean. It's like a magic elevator that can take you down to see all sorts of cool things underwater.
The reason the bathyscaphe trieste can go so deep is because of something called 'buoyancy'. Buoyancy is like a tug-of-war between two forces. One force is called gravity, and that tries to pull everything down. The other force is called buoyancy, and that tries to lift things up. When the bathyscaphe is filled with water, the water is heavier than the ballast, so gravity wins and the bathyscaphe sinks down. But when the cabin is full of air, the air is lighter than the ballast, so buoyancy wins and the bathyscaphe floats back up to the surface.
Because the bathyscaphe trieste can dive so deep, scientists can learn all sorts of things about the ocean that they couldn't before. They can study creatures that live in the deepest, darkest parts of the ocean, and even look for hidden treasure!
The bathyscaphe trieste has two parts: the top part is called the cabin, and that's where people go when they go for a ride in the bathyscaphe. The bottom part is called the 'ballast'. The ballast is filled with water or air, depending on whether the bathyscaphe is going up or down.
The bathyscaphe trieste is special because it can dive down deeper than anyone thought was possible. It can go down to the very bottom of the ocean. It's like a magic elevator that can take you down to see all sorts of cool things underwater.
The reason the bathyscaphe trieste can go so deep is because of something called 'buoyancy'. Buoyancy is like a tug-of-war between two forces. One force is called gravity, and that tries to pull everything down. The other force is called buoyancy, and that tries to lift things up. When the bathyscaphe is filled with water, the water is heavier than the ballast, so gravity wins and the bathyscaphe sinks down. But when the cabin is full of air, the air is lighter than the ballast, so buoyancy wins and the bathyscaphe floats back up to the surface.
Because the bathyscaphe trieste can dive so deep, scientists can learn all sorts of things about the ocean that they couldn't before. They can study creatures that live in the deepest, darkest parts of the ocean, and even look for hidden treasure!