Pink

Pink is a pale red color, which takes its name from the flower of the same name. According to surveys in Europe and the United States, pink is the color most often associated with love, beauty, charm, politeness, sensitivity, tenderness, sweetness, childhood, femininity, and the romantic. When combined with violet or black, it is associated with eroticism and seduction.

Pink was first used as a color name in the late 17th century.

In nature and culture

The color pink takes its name from the flowers called pinks, members of the genus Dianthus.

The color pink takes its name from the flowers called pinks, members of the genus Dianthus.

In most European languages, pink is called rose or rosa, after the rose flower.

In most European languages, pink is called rose or rosa, after the rose flower.

Cherry blossoms in Senai, Miyagi, Japan. The Japanese language has different words for the pink of cherry blossoms (sakura-iro), and peach blossoms (momo-iro). Recently the word pinku has also become popular.

Grass

Grasses are monocotyledonous, usually herbaceous flowering plants in the family Poaceae (also called Gramineae). They have stems that are hollow except at the nodes and narrow alternate leaves borne in two ranks. The lower part of each leaf encloses the stem, forming a leaf-sheath. Grasses include cereals, bamboo and the grasses of lawns (turf) and grassland.

Uses for grasses include food (as grain, sprouted grain, shoots, rhizomes and sugar), drink (sugarcane juice, rum, beer, whisky, vodka), pasture for livestock, thatch, paper, fuel, clothing, insulation, timber for fencing, furniture, scaffolding and construction, sports turf, basket weaving and many others.

Ecology

Grasses include some of the most versatile plant life-forms. They became widespread toward the end of the Cretaceous period, and fossilized dinosaur dung (coprolites) have been found containing phytoliths of a variety that include grasses that are related to modern rice and bamboo. Grasses have adapted to conditions in lush rain forests, dry deserts, cold mountains and even intertidal habitats, and are now the most widespread plant type; grass is a valuable source of food and energy for all sorts of wildlife and organics.

Active

Active may refer to:

Music

Ships

Computers and electronics

Foam

A foam is a substance that is formed by trapping pockets of gas in a liquid or solid. A bath sponge and the head on a glass of beer are examples of foams. In most foams, the volume of gas is large, with thin films of liquid or solid separating the regions of gas.

An important division of solid foams is into closed-cell foams and open-cell foams. In a closed-cell foam, the gas forms discrete pockets, each completely surrounded by the solid material. In an open-cell foam, the gas pockets connect with each other. A bath sponge is an example of an open-cell foam: water can easily flow through the entire structure, displacing the air. A camping mat is an example of a closed-cell foam: the gas pockets are sealed from each other so the mat cannot soak up water.

Foams are examples of dispersed media. In general, gas is present in large amount so it will be divided into gas bubbles of many different sizes (the material is polydisperse) separated by liquid regions which may form films, thinner and thinner when the liquid phase is drained out of the system films. When the principal scale is small, i.e. for a very fine foam, this dispersed medium can be considered as a type of colloid.