Science  People  Locations  Timeline
Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Home > Straw


Straw is the dry stalk of a cereal plant, after the nutrient grain or seed has been removed. Straw makes up about half of the yield of a cereal crop such as wheat, oats, rye or barley. In times gone by, it was regarded as a useful by-product of the harvest, but with the advent of the combine harvester, straw has become more of a burden, almost a nuisance to farmers.

However, straw can be put to many uses, old and new.

Uses of straw




A straw is also a device used for suckingCreating a partial vacuum is called sucking . Infants, and all baby mammals, are born with a sucking (or suckling) reflex, by which they instinctively know to suck for food (or more specifically, milk). More generally, drinking is partly done by sucking, up a liquid. A thin tube of plastic or other material, it is employed by being held with one end in the mouth and another end in the drink. Muscular action reduces air pressure in the mouth, whereupon atmospheric pressure forces the drink up the straw. The first straw was made in 1886 and used a year later for the first time in the first Wimpy bar in London.

The straw is usually made of polystyrene. Straws may be straight or with a folding hingeA hinge is a mechanical device that connects two solid objects, allowing a relative motion between them. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges. There are three main types of door hinges.

Packaging materials

Read more »

Non User