The video discusses the process of making large ships and cruise liners. It begins by explaining that building these massive vessels can take around two to three years and requires a workforce of thousands. The video highlights that these ships can weigh over 100,000 tons and have the capacity to accommodate around 8,000 people.
The video showcases how Mitsubishi Heavy Industries constructs these massive ships. The process involves building a large dry dock on the seashore, where the ship's foundation is laid. The ship's structure is then built using steel sheets and rods.
Once the basic structure is complete, the ship is equipped with electricity, plumbing, and other essential systems. The interior is then designed and furnished with luxurious amenities such as bedrooms, bathrooms, casinos, hospitals, and shopping complexes.
The video also discusses the process of launching the ship into the water. There are three methods: the gravitational type launching method, the floating and type launching method, and the airbag method. The most common method used is the gravitational type launching method, where the ship is placed on a set of tracks and then launched into the water using gravity.
The video also explains why large ships can float in water, despite their massive size. It cites the Archimedes principle, which states that an object will float if it displaces a volume of water that weighs more than the object itself. Additionally, the video notes that ships are designed to be empty from the inside, which reduces their weight and allows them to float.
Overall, the video provides an in-depth look at the process of making large ships and cruise liners, from construction to launch, and explains the science behind how they are able to float in water.
Here are the key facts extracted from the text:
1. It takes around 2-3 years to build a big ship.
2. The weight of a big ship is more than one lakh tonnes.
3. Around 8-8.5 thousand people can travel together on a big ship.
4. Mitsubishi Heavy Industries is one of the companies that build big ships.
5. The base of a ship is made from thick material to prevent damage from salt water.
6. The ship's structure is prepared from sheets of cheesecloth and rods.
7. Steel settings and electricity are installed inside the ship.
8. Anti-rust chemical is applied to the body of the ship to prevent rust.
9. The ship is tested in the water before being launched.
10. There are three methods to launch a big ship in water: floating and type launching, gravitational type launching, and air bag launching.
11. The Archimedes principle explains why big ships float in water.
12. The density of an object determines whether it sinks or floats in water.
13. Big ships have empty spaces inside, making them less dense than water, which helps them float.