In botany, a tendril is a specialized stem, leaf or petiole with a threadlike shape that is used by climbing plants for support, attachment and cellular invasion by parasitic plants, generally by twining around suitable hosts. They do not have a lamina or blade, but they can photosynthesize. They can be formed from modified shoots, modified leaves, or auxiliary branches and are sensitive to airborne chemicals, often determining the direction[…]

Bicycle culture can refer to a mainstream culture that supports the use of bicycles or to a subculture. Although « bike culture » is often used to refer to various forms of associated fashion, it is erroneous to call fashion in and of itself a culture.[1] Cycling culture refers to cities and countries which actively support a large percentage of utility cycling. Examples include Denmark, the Netherlands, Germany, Belgium (Flanders in particular),[…]

Spring is one of the four conventional temperate seasons, following winter and preceding summer. There are various technical definitions of spring, but local usage of the term varies according to local climate, cultures and customs. When it is spring in the Northern Hemisphere, it will be autumn in the Southern Hemisphere and vice versa. At the spring equinox, days are approximately 12 hours long with day length increasing as the[…]