Selenium disulfide has been use in shampoo as an anti-dandruff agent, an inhibitor in polymer chemistry, a glass dye, and a reducing agent in fireworks.

Shellac finds a use in pyrotechnic compositions as a low-temperature fuel, where it allows the creation of pure ' greens ' and ' blues ', colours difficult to achieve with other fuel mixes in fireworks formulae.

* 13th century AD-Rockets and fireworks evolved with use in weaponry in China.

The most common use of a firework is as part of a fireworks display.

Improper use of fireworks may be dangerous, both to the person operating them ( risks of burns and wounds ) and to bystanders ; in addition, they may start fires after landing on flammable material.

For this reason, the use of fireworks is generally legally restricted.

Display fireworks are restricted by law for use by professionals ; consumer items, available to the public, are smaller versions containing limited amounts of explosive material to reduce potential danger.

One of the oldest clubs is CrackerJacks, Inc., However, many users travel to neighboring states such as Indiana, Missouri, Kentucky, and Wisconsin to obtain fireworks for use in Illinois.

Concerns over pollution, consumer safety, and debris have restricted the sale and use of consumer fireworks in many countries.

In the US some states and local governments restrict the use of fireworks in accordance with the Clean Air Act which allows laws relating to the prevention and control of outdoor air pollution to be enacted.

In Chile, the manufacture, importation, possession and use of fireworks is prohibited to unauthorized individuals ; only certified firework companies can legally use fireworks.

In some municipalities of Western Finland it is allowed to use fireworks without a fire station's permission on the last weekend of August.

In Iceland, the Icelandic law states that anyone may purchase and use fireworks during a certain period around New Year's Eve.

Importation, sale or use of fireworks even on private property can result in a fine of up to € 10, 000 and / or up to five years in prison.

One state ( Arizona ) permits residents to purchase and use all non-aerial fireworks such as novelties, fountains, sparklers, and smoke bombs, while still prohibiting firecrackers.

Seventeen states ( California, Colorado, Connecticut, Florida, Georgia, Idaho, Maryland, Minnesota, Nebraska, North Carolina, Oregon, Pennsylvania, Rhode Island, Utah, Virginia, Wisconsin, West Virginia, and the District of Columbia ) allow residents to purchase and use non-aerial and non-explosive fireworks like novelties, fountains and sparklers.

In Nebraska the sale and use of all consumer fireworks are prohibited in Omaha as of December 31, 2010, while in Lincoln there is a two-day selling period and in other parts of the state all of the permitted types can be sold and used by residents.

Because some states restrict the in-state use of fireworks by purchasers, large fireworks stores like this one near Richmond, Indiana, are sometimes located on state borders.

For example, Clark County, Nevada, where Las Vegas is located, allows residents to purchase and use only non-explosive and non-aerial consumer fireworks during Independence Day, while other counties permit all types of consumer fireworks.

But there is no use causing him to worry at this time ''.

But apart from racial problems, the old unreconstructed South -- to use the moderate words favored by Mr. Thomas Griffith -- finds itself unsympathetic to most of what is different about the civilization of the North.

Only the President is permitted to authorize the use of nuclear weapons.

The sequence is determined by chance, and Mr. Cunningham makes use of any one of several chance devices.

If they avoid the use of the pungent, outlawed four-letter word it is because it is taboo ; ;

This is the rhetoric of righteousness the beatniks use in defending their way of life, their search for wholeness, though their actual existence fails to reach these `` religious '' heights.

Part of the ritual of sex is the use of marijuana.

Holmes is addicted to the use of cocaine and other refreshing stimulants ; ;

But what a super-Herculean task it is to winnow anything of value from the mud-beplastered arguments used so freely, particularly since such common use is made of cliches and stereotypes, in themselves declarations of intellectual bankruptcy.

`` The argument that is cutting most ice is that Hearst is the only candidate who is fighting the trusts fearlessly and who would use all the powers of government to disrupt them if he were elected.

for if this can be proved we shall surely be the gainers -- I mean, if there is a use in poetry as well as a delight ''.

It is even true that some among them use the sheer fact of conformity -- `` everyone does it '' -- as a criterion for conduct.

Without a precise knowledge of Germanic philology, however, it is debatable whether their use was not more often a source of confusion and error than anything else.

Often the historian must consider the use of intuition or instinct by those individuals or nations which he is studying.

Easily the best known of these three novels is The Space Merchants, a good example of a science-fiction dystopia which extrapolates much more than the impact of science on human life, though its most important warning is in this area, namely as to the use to which discoveries in the behavioral sciences may be put.

The narrator is an Alsatian serving with the French Army, and he has the same name ( Berger ) that Malraux himself was later to use in the Resistance ; ;

And by a skillful and unobtrusive use of imagery ( the enclosure is called a `` Roman-camp stockade '', the hastily erected lean-to is a `` Babylonian hovel '', the men begin to look like `` Peruvian mummies '' and to acquire `` Gothic faces '' ), Malraux projects a fresco of human endurance -- which is also the endurance of the human -- stretching backward into the dark abyss of time.

With respect to other frequencies, these are designated as regional or local, and assigned for use by class 3, and class 4, stations, respectively, stations operating generally with lower power.

Any alteration of one of these factors is distortion, although we generally use that word only for effects so pronounced that they can be stated quantitatively on the basis of standard tests.

When an alphabet is adopted or developed for use in representing a given language, an orthography generally comes into being, providing rules for the spelling of words in that language.

It is, however, generally agreed that the use of mouthwash does not eliminate the need for both brushing and flossing.

The term " allocution " is generally only in use in jurisdictions in the United States, though there are vaguely similar processes in other common law countries.

One motivation for this use is that a number of generally accepted mathematical results, such as Tychonoff's theorem, require the axiom of choice for their proofs.

In modern English, " Americans " generally refers to residents of the United States, and among native speakers of English this usage is almost universal, with any other use of the term requiring specification of the subject under discussion.

In adjectival use, it is generally understood to mean " of or relating to the United States "; for example, " Elvis Presley was an American singer " or " the American President gave a speech today ".

The school has been highly influential in setting the agenda for historiography in France and numerous other countries, especially regarding the use of social scientific methods by historians, emphasizing social rather than political or diplomatic themes, and for being generally hostile to the class analysis of Marxist historiography.

Locally, the relatives of the camel, the llama, and the alpaca continue to carry out important uses as pack animals, but this use has generally diminished in modern times.

Police officers and court officials have a general power to use force for the purpose of performing an arrest or generally carrying out their official duties.

Fried rice is generally prepared with rice cooled overnight, allowing restaurants to put unserved leftover rice to good use.

The use of full stops / periods after most abbreviations can also be found in the UK, although publications generally tend to eschew the use of American punctuation.

The terms mulatto and colored were widely used until the second quarter of the 20th century, when they were considered outmoded and generally gave way to the use of negro.

Non-traditional Protestant communities generally use the term " ordinance " rather than " Sacrament ".

Although they are generally classified as a cappella metal, the band also includes a drummer, and use amplifiers on some songs to distort the voice to sound more like a real guitar.

Oil paints may require the use of solvents such as mineral spirits or turpentine to thin the paint and clean up ; these generally have some level of toxicity and are often found objectionable.

A review of the methods used in trials of antipsychotics, despite stating that the overall quality is " rather good ," reported issues with the selection of participants ( including that in schizophrenia trials up to 90 % of people who are generally suitable do not meet the elaborate inclusion and exclusion criteria, and that negative symptoms have not been properly assessed despite companies marketing the newer antipsychotics for these ); issues with the design of trials ( including pharmaceutical company funding of most of them, and inadequate experimental " blinding " so that trial participants could sometimes tell whether they were on placebo or not ); and issues with the assessment of outcomes ( including the use of a minimal reduction in scores to show " response ," lack of assessment of quality of life or recovery, a high rate of discontinuation, selective highlighting of favorable results in the abstracts of publications, and poor reporting of side-effects ).

The resulting sensitivity ( photophobia ) generally leads to discomfort in bright light, but this can be reduced by the use of sunglasses and / or brimmed hats.

25, 000 AIM-7Es were produced, and saw extensive use during the Vietnam War, where its performance was generally considered disappointing.

The most common method is the use of dice, generally six-sided.

The use of these custom character sets was generally incompatible between manufacturers.

Some, mainly utility, bicycles use hub gears with between 3 and 14 ratios, but most use the generally more efficient dérailleur system, by which the chain is moved between different cogs called chainrings and sprockets in order to select a ratio.