Water Vehicles stability and Metacentre

TRANSVERSE STABILITY
When a vessel is
floating upright
(at equilibrium)
in still water, the
centre of buoyancy
(upthrust) and the
centre of gravity
(downthrust) will
be on the same line,
vertically above
the keel (K).
If the vessel is inclined by an external force
(i.e. without moving internal weight) a wedge of
buoyancy is brought out of the water on one side
and a similar wedge of buoyancy is immersed on
the other side. The centre of buoyancy being the
centre of the underwater section of the vessel has
now moved from point B to B1.




METACENTRE
Vertical lines drawn
from the centre
of buoyancy at
consecutive small
angles of heel will
intersect at a point      
called the metacentre
(M). The metacentre
can be considered
as being similar to a
pivot point when a
vessel is inclined at
small angles of heel.
The height of the metacentre is measured from the reference point (K) and is,
therefore, called KM.

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Three Amazing structure of the World!!

                           The Crooked House:

Though it looks like some sort of painting by a drunk painter. But this is a real house located in Rezydent Shopping Center in Sopot, Poland. It is claimed to be the most photographed building in Poland. It is spread to an area of 4,000 square meters

 

The Basket Building (Ohio, United State)

 This may look like a picnic basket kept in the park. But this actually is a 7-story building which is Longaberger's Home Office located in Newark, Ohio. This monument is in-fact world’s largest basket. Its 192 ft. long by 126 ft. wide at the bottom, spreads to 208-ft. long by 142-ft. wide at the roofline.

 

Cubic Houses (Rotterdam, Netherlands)

  This is a housing designed on top of a pedestrian bridge. The main idea behind this is to create a forest of cubes (abstract trees) as each cube represents an abstract tree.
The cubes are tilted and sit on hexagon-shaped pole structures. The cubes contain the living areas, which are split into three levels. The triangle-shaped lower level contains the living area.

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