It is called raft to structure which, generally constructed from the union of timbers, is used as boat. By extension, the raft is also called inflatable boat used in emergencies when a larger ship is at risk of sinking.
The rafts are flat in shape and can develop in different ways. In addition to timbers, you can use different kinds of boards, reeds or even synthetic substances.
It is important to know that there are different types of rafts, among which we can highlight the following:
-Wood raft, which, as its name suggests, is made with wood. This kind of boat can be found in small towns to undertake very short trips down the river to, for example, be able to carry bulky materials from shore to shore. This without overlooking the fact that in literary works, movies and television series where shipwrecked people appear, it is usual for those to escape from the island where they are decide to cut tree trunks with which to make a raft.
-Rap of synthetic materials that give it great stability and flotation capacity. In this group we also find two other different types. Among those are, for example, recreational, which can be used on beaches, swamps, lakes … In the same way, we cannot forget those that are created to be able to carry out, for example, what is the descent of rivers .
The history of the rafts has several millennia. Man, since ancient times, has built rafts to float and navigate rivers, seas, lakes, streams, lagoons and all kinds of bodies of water.
The boat wood, on the other hand, is that obtained from tree Ochroma pyramidale. It stands out for its low density: it is a wood that is lighter even than cork. From South America, stands out for its rapid growth and for its qualities for the development of acoustic and thermal insulation.
Another use of the raft concept refers to gap of a surface that, either artificially or naturally, fills with Water. A reservoir, in this framework, can be a work of hydraulic engineering that is developed to store water and that has a dam to retain it.
A lipid raft or lipid raftOn the other hand, it is a molecular microdomain found in the plasma membrane. Compared to your environment, this raft has a lower fluidity.
In the same way, we cannot ignore the existence of certain popular expressions that use the term at hand. This would be the case, for example, of oil raft. This is used to refer to that a person, an animal, a situation or a fact is calm. An example of this would be the following sentence: “After the reprimand of his parents for his rebellious and immature action, the attitude of the minor was a real raft of oil.”
“The raft”, finally, is the name of a song that is considered like foundational in the Argentine rock. It was composed by Litto nebbia Y Tanguito and recorded by The cats in 1967.