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Cannabis Smoking
Cannabis smoking (or colloquially smoking pot) is the inhalation of smoke or vapor released by heating the flowers, leaves, or extracts of cannabis and releasing the main psychoactive chemical, Δ9-tetrahydrocannabinol (THC), which is absorbed into the bloodstream via the lungs. Archaeological evidence indicates cannabis with high levels of THC was being smoked at least 2,500 years ago. In addition to being smoked and vaporized, cannabis and its active cannabinoids may be ingested, placed under the tongue, or applied to the skin. The bioavailability characteristics and effects of smoking and vaporizing cannabis differ from other cannabis consumption methods in having a more rapid and predictable onset of effect. Methods Cannabis (marijuana) can be smoked in a variety of pipe-like implements made in different shapes and of different materials including hand pipes ( "bowls"), water pipes ("bongs"), cigarettes ("joints"), or blunts. Solar puffing (also called ''sol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganja Smoking - Gangasagar Fair Transit Camp - Kolkata 2013-01-12 2646
Ganja (, ; ) is one of the oldest and most commonly used synonyms for marijuana. Its usage in English dates to before 1689. Etymology ''Ganja'' is borrowed from Hindi/Urdu ( hi, गांजा, links=no, ur, , links=no, IPA: aːɲd͡ʒaː, a name for cannabis, which is derived from Sanskrit , referring to a "powerful preparation from ''Cannabis sativa''". The word was used in Europe as early as 1856, when the British enacted a tax on the "ganja" trade. One academic source places the date of introduction of ganja in Jamaica at 1845. The term came with 19th century workers whose descendants are now known as Indo-Jamaicans. Contemporary use of the term ''ganja'' English use ''Ganja'' is the most common term for marijuana in West Indies. In popular culture In 1975, Peter Tosh defended the use of ganja in the song "Legalize It". The hip hop group Cypress Hill revived the term in the United States in 2004 in a song titled "Ganja Bus", followed by other artists, includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bong
A bong (also known as a water pipe) is a filtration device generally used for smoking cannabis, tobacco, or other herbal substances. In the bong shown in the photo, the gas flows from the lower port on the left to the upper port on the right. In construction and function, a bong is similar to a hookah, except smaller and especially more portable. A bong may be constructed from any air- and water-tight vessel by adding a bowl and stem apparatus (or slide) which guides air downward to below water level whence it bubbles upward ("bubbler") during use. To get fresh air into the bong and harvest the last remaining smoke, a hole known as the "carburetor", "carb", "choke", "bink", "rush", "shotty", "kick hole", or simply "hole", somewhere on the lower part of the bong above water level, is first kept covered during the smoking process, then opened to allow the smoke to be drawn into the respiratory system. On bongs without such a hole, the bowl and/or the stem are removed to allow air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roll Up Cigarette
A roll-your-own (RYO) cigarette, also called a handrolled cigarette, is a cigarette made from loose tobacco (usually a ''shag'' cut) and rolling paper. Factory-made cigarettes are called industrial cigarettes. Rolling tobacco Rolling tobacco, or cigarette tobacco, is the primary tobacco used for RYO cigarettes. It is generally packaged in pouches. After 2009, the United States federal tax rate on RYO tobacco was raised from $1.0969 per pound to $24.78 per pound. This increase has caused many people to switch to using pipe tobacco to make cigarettes, since the pipe tobacco tax rate was also increased, but only to $2.83 per pound. In Australia, loose tobacco was taxed less than manufactured cigarettes until September 2016. Prevalence RYO has become more popular in the United States in recent years, but relatively few smokers, only 6.7%, actually roll their own cigarettes. In contrast, this rate was 15% in Canada, 22% in Australia, and 30% in the UK. Reasons for this diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Lung Foundation
The British Lung Foundation (BLF) is a British charity that promotes lung health and supports those affected by lung disease. History The British Lung Foundation was established by Professor Sir Malcolm Green and a group of United Kingdom lung specialists in 1984. It has maintained strong links with the medical profession, as well as utilising the talents of people from all walks of life who share a determination to try to conquer lung disease in the 21st Century. Breathe Easy Breathe Easy is the support network of the British Lung Foundation. The network includes 150 support groups across the UK. Breathe Easy supports people through regular group meetings and offering help over the phone. There is also a pen-pal scheme, enabling people to make contact with others in the same situation. After a Breathe Easy campaign the Department of Health decided to undertake a complete review of the way oxygen is provided in England and Wales. Campaigns The British Lung Foundation camp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tar (tobacco Residue)
Tar is the name for the resinous, combusted particulate matter made by the burning of tobacco and other plant material in the act of smoking. Tar is toxic and damages the smoker's lungs over time through various biochemical and mechanical processes. Tar also damages the mouth by rotting and blackening teeth, damaging gums, and desensitizing taste buds. Tar includes the majority of mutagenic and carcinogenic agents in tobacco smoke. Polycyclic aromatic hydrocarbons (PAH), for example, are genotoxic and epoxidative. Cigarette companies in the United States, when prompted to give tar/nicotine ratings for cigarettes, usually use "tar", in quotation marks, to indicate that it is not the road surface component. Tar is occasionally referred to as an acronym for ''total aerosol residue'', a backronym coined in the mid-1960s. Tar, when in the lungs, coats the cilia causing them to stop working and eventually die, causing conditions such as lung cancer as the toxic particles in tob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carcinogen
A carcinogen is any substance, radionuclide, or radiation that promotes carcinogenesis (the formation of cancer). This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. Several radioactive substances are considered carcinogens, but their carcinogenic activity is attributed to the radiation, for example gamma rays and alpha particles, which they emit. Common examples of non-radioactive carcinogens are inhaled asbestos, certain dioxins, and tobacco smoke. Although the public generally associates carcinogenicity with synthetic chemicals, it is equally likely to arise from both natural and synthetic substances. Carcinogens are not necessarily immediately toxic; thus, their effect can be insidious. Carcinogens, as mentioned, are agents in the environment capable of contributing to cancer growth. Carcinogens can be categorized into two different types: activation-dependent and activation-independent, and each nature impacts their level ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tobacco
Tobacco is the common name of several plants in the genus '' Nicotiana'' of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the chief commercial crop is ''N. tabacum''. The more potent variant ''N. rustica'' is also used in some countries. Dried tobacco leaves are mainly used for smoking in cigarettes and cigars, as well as pipes and shishas. They can also be consumed as snuff, chewing tobacco, dipping tobacco, and snus. Tobacco contains the highly addictive stimulant alkaloid nicotine as well as harmala alkaloids. Tobacco use is a cause or risk factor for many deadly diseases, especially those affecting the heart, liver, and lungs, as well as many cancers. In 2008, the World Health Organization named tobacco use as the world's single greatest preventable cause of death. Etymology The English word ''tobacco'' originates from the Spanish word "tabaco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Hand Smoke
Passive smoking is the inhalation of tobacco smoke, called secondhand smoke (SHS), or environmental tobacco smoke (ETS), by persons other than the intended "active" smoker. It occurs when tobacco smoke enters an environment, causing its inhalation by people within that environment. Exposure to secondhand tobacco smoke causes disease, disability, and death. The health risks of secondhand smoke are a matter of scientific consensus. These risks have been a major motivation for smoke-free laws in workplaces and indoor public places, including restaurants, bars and night clubs, as well as some open public spaces. Concerns around secondhand smoke have played a central role in the debate over the harms and regulation of tobacco products. Since the early 1970s, the tobacco industry has viewed public concern over secondhand smoke as a serious threat to its business interests. Harm to bystanders was perceived as a motivator for stricter regulation of tobacco products. Despite the indust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannabis Consumption
Cannabis consumption refers to the variety of ways cannabis is consumed, among which inhalation ( smoking and vaporizing) and ingestion are most common. All consumption methods involve heating the plant's THCA to decarboxylate it into THC, either at the time of consumption or during preparation. Salves and absorption through the skin (transdermal) are increasingly common in medical uses, both of CBD, THC, and other cannabinoids. Each method leads to subtly different psychoactive effects due to the THC and other chemicals being activated, and then consumed through different administration routes. It is generally considered that smoking, which includes combustion toxins, comes on quickly but lasts for a short period of time, while eating delays the onset of effect but the duration of effect is typically longer. In a 2007 ScienceDaily report of research conducted at the University of California–San Francisco, researchers reported that vaporizer users experience the same biologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannabis
''Cannabis'' () is a genus of flowering plants in the family Cannabaceae. The number of species within the genus is disputed. Three species may be recognized: ''Cannabis sativa'', '' C. indica'', and '' C. ruderalis''. Alternatively, ''C. ruderalis'' may be included within ''C. sativa'', all three may be treated as subspecies of ''C. sativa'', or ''C. sativa'' may be accepted as a single undivided species. The genus is widely accepted as being indigenous to and originating from Asia. The plant is also known as hemp, although this term is often used to refer only to varieties of ''Cannabis'' cultivated for non-drug use. Cannabis has long been used for hemp fibre, hemp seeds and their oils, hemp leaves for use as vegetables and as juice, medicinal purposes, and as a recreational drug. Industrial hemp products are made from cannabis plants selected to produce an abundance of fibre. Various cannabis strains have been bred, often selectively to pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burning Glass
A burning glass or burning lens is a large convex lens that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface. Burning mirrors achieve a similar effect by using reflecting surfaces to focus the light. They were used in 18th-century chemical studies for burning materials in closed glass vessels where the products of combustion could be trapped for analysis. The burning glass was a useful contrivance in the days before electrical ignition was easily achieved. Historical development: from legend to science Burning glass technology has been known since antiquity, as described by Greek and Roman writers who recorded the use of lenses to start fires for various purposes. Pliny the Elder noted the use of glass vases filled with water to create a heat intense enough to ignite clothing, as well as convex lenses that were used to cauterize wounds. Plutarch refers to a burning mirror made of joined triangular metal mir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnifying Lens
A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. A magnifying glass can be used to focus light, such as to concentrate the sun's radiation to create a hot spot at the focus for fire starting. A sheet magnifier consists of many very narrow concentric ring-shaped lenses, such that the combination acts as a single lens but is much thinner. This arrangement is known as a Fresnel lens. The magnifying glass is an icon of detective fiction, particularly that of Sherlock Holmes. History "The evidence indicates that the use of lenses was widespread throughout the Middle East and the Mediterranean basin over several millennia". The earliest explicit written evidence of a magnifying device is a joke in Aristophanes's ''The Clouds'' from 424 BC, where magnifying lenses to ignite tinder were sold in a pharmacy, and Pliny the Elder's "lens", a glass globe filled with water, used to cauteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
