Synthetic fibres are made artificially. They are solid, smooth and straight in structure unlike a natural fibre like cotton which is hollow. So when synthetic fabrics are soaked in water, only the surface of the fibres gets wet as water does not enter the body of the fibre. That is why these fabrics absorb very little amount of water and dry quickly as the water drips away. Such fabrics are also known as ‘drip dry’.

The ‘V’ is a hand gesture which means ‘Victory’ or ‘Peace.’ It is made with the first and second fingers raised and parted, whilst the remaining fingers are clenched and the palm faces outwards.According to legend, the ‘V’ sign goes back to the Hundred Years’ War between England and France. The story claims that the French cut off two fingers on the right hand of captured archers, and the ‘V’ sign was a gesture of defiance made by the English archers who were not mutilated. Former British Prime Minister Sir Winston Churchill used the ‘V’ sign to symbolize victory during World War II. The sign became very popular in the United States during the peace movement of the 1960s. 

The Japanese greet each other by bowing. The bow can be a small nod of the head, or a more elaborate bending from the waist. If your opposite is of higher social status than yourself, you are supposed to bow deeper and longer than him or her!However, nowadays the Japanese do shake hands too. The handshake is usually followed by a bow. Did you know that Japanese people sometimes bow toward the person whom they are talking to on the phone? Though they can’t actually see the person whom they are talking to, they tend to bow in order to show respect.Different bows are used for apologies and gratitude, to express different emotions like humility, sincerity, remorse, or deference, and in various traditional arts and religious ceremonies. Generally speaking, an inferior bows longer and more deeply, and more frequently, than a superior.

In India, people greet each other with folded hands and say ‘Namaste’. Many Asian people bow to greet each other, while others touch their foreheads with their hands to say ‘salaam’.The handshake is the universal form of greeting in the West, Now, this practice has spread to other parts of the world too. Native Hawaiians hug and exchange breaths when they meet, while Mexicans just hug each other.In many parts of the world, men greet each other by exchanging kisses on the cheek, while the Maoris of New Zealand rub noses to say ‘hello’!

Gestures are important means of communication, it is true, but sometimes, they can prove troublesome. This happens when the same gesture has different meanings in different When an American meets a Chinese, they will both greet each other with a handshake. Some of the gestures they use will have a common meaning… waving a hand to say good bye, frowning to show displeasure, nodding the head to say ‘yes’ and shaking it from side to side to say ‘no’.However, some gestures means different things to an American and a Chinese. An American will stamp his foot when he is impatient, a Chinese when he is angry. For an American, starting is very rude, while for a Chinese it is only a sign of curiosity or surprise. When an American makes a shushing sound, it means ‘be quiet’, while for a Chinese it is a sign of displeasure. Never pat a Chinese on the head. You may think you are encouraging him or consoling him, but for the Chinese, a pat on the head is an insult!

            About three-fourths of a poultry egg is plain water in which the albumin protein and fats are suspended. At room temperature, the protein strands are tightly folded in a complex three-dimensional shape. Because the individual proteins are able to move freely, both the egg-white and the yolk remain liquid. But when the egg is placed in boiling water, the protein strands begin to straighten out. The protein ends, normally protected within the folds, become exposed. When the temperature rises to , the open ends join together in bridge-like bonds forming a giant structure. These new bonds prevent the molecules to move                                                                                              thereby making the egg material solid.

            Fanning produces a sense of coolness in the body because of evaporation of moisture from the skin. On fanning the rate of evaporation increases. The water molecules from the body in the form of perspiration take up heat energy from the body and escape from the body surface, thus cooling it. However, if the air is hot, as in a desert, fanning does not produce any cooling as the heat for evaporation is supplied by the hot air.

   The intensity of light coming out from a TV screen is very high. If this bright light with varying intensity is the only source of light in a darkened room, the eye has to constantly adjust for vision by opening wide or narrowing the iris when a person focuses on the bright screen or looks away from it. The constant adjustments that the eye has to make causes eye strain. Whereas in a lighted room, intensity of the T.V. image is only a little brighter than the surroundings, which makes the viewing easier for the eyes. It is, therefore, advised to have some light in the room while watching the television.

            The softness of ice cream arises out of the nature of the ingredients and the way they are combined. Two essential ingredients of ice-cream are fat in the form of cream and air bubbles introduced by stirring.  As the water in the ingredients starts freezing, the suspended fat globules prevent the whole content from freezing as a single mass. Tiny air bubbles trapped in the mixture due to continuous stirring of the ingredients also prevent the ice crystals from growing as the temperature is reduced further. This prevents the ice cream from becoming hard and the frozen mass remains soft.

  In the case of ice, the absence of fat and air bubbles leads to the tiny ice crystals growing into large chunks of hard ice.