Frosty

Frosty or Frosties and similar may refer to:

Fictional snowman

Aerosol burn

An aerosol burn is an injury to the skin caused by the pressurized gas within an aerosol spray cooling quickly, with the sudden drop in temperature sufficient to cause frostbite to the applied area. Medical studies have noted an increase of this practice, known as "frosting", in pediatric and teenage patients.

Adiabatic expansion causes the gas (with a low boiling temperature) to rapidly cool on exit from the aerosol applier. According to controlled laboratory experiments, the gas from a typical deodorant spray can reduce skin temperature by up to sixty degrees Celsius.

The form of injury is freezing of the skin, a type of frostbite. It is highly advised for those who suffer from frostbite to seek medical attention.

In rare cases aerosol-induced burns can be severe enough to necessitate skin grafting.

Causes

The most common cause of aerosol burns is patients' spraying deodorants for prolonged periods of time in close proximity to their skin. This practice is more common in younger persons such as teenagers and can be referred to as "frosting" or having a "frosty". Injuries such as these are often self-inflicted, and depression should be considered as an underlying cause. However, some do it due to influence by their peers as a way of "impressing" them, with the "Aerosol Challenge" gaining popularity alongside the "Cinnamon Challenge" and "Chubby Bunny" contests as trends in dangerous peer-pressure-induced self-harm.

Ulmus parvifolia

Ulmus parvifolia, commonly known as the Chinese elm or lacebark elm, is a species native to eastern Asia, including China, India, Taiwan, Japan, North Korea, and Vietnam. It has been described as "one of the most splendid elms, having the poise of a graceful Nothofagus".<ref name=Hilliers'>Hilliers' Manual of Trees & Shrubs, 4th edition, 1977, David & Charles, Newton Abbot, England</ref> The tree was introduced to the UK in 1794.

Description

A small to medium deciduous, semi-deciduous (rarely semi-evergreen) tree growing to 10–18 m (33–59 ft) tall and 15–20 m (49–66 ft) wide with a slender trunk and crown. The leathery, lustrous green single-toothed leaves are small, 2–5 cm long by 1–3 cm broad, and often retained as late as December or even January in Europe and North America. The apetalous wind-pollinated perfect flowers are produced in early autumn, small and inconspicuous. The fruit is a samara, elliptic to ovate-elliptic, 10–13 mm long by 6–8 mm broad. The samara is mostly glabrous, the seed at the centre or toward the apex, borne on a stalk 1–3 mm in length; it matures rapidly and disperses by late autumn. The trunk has a handsome, flaking bark of mottled greys with tans and reds, giving rise to its other common name, the lacebark elm, although scarring from major branch loss can lead to large canker-like wounds.