Upcycling is a component of sustainability in which waste materials are used to provide new products. It is generally a reinvestment in the environment. "Upcycling is the practice of taking something that is disposable and transforming it into something of greater use and value." This process allows for the reduction of waste and virgin material use.
Wednesday, July 29, 2009
A hakapik is a club, of Norwegian design, used for killing seals. The hakapik is a multipurpose hunting tool—a heavy wooden club, with a hammer head (used to crush a seal's skull), and a hook (used to drag away the carcass) on the end. In Norway, and possibly elsewhere, the hakapik is used only to kill seal cubs, while a rifle is used to kill mature individuals. The hakapik is also used to ensure that shot seals are actually dead.
Tuesday, July 28, 2009
Monday, July 27, 2009
Tokenism refers to a policy or practice of limited inclusion of members of a minority group, usually creating a false appearance of inclusive practices, intentional or not. Typical examples in real life and fiction include purposely including a member of a minority race (such as a black character in a mainly white cast, or vice versa) into a group. Classically, token characters have some reduced capacity compared to the other characters and may have bland or inoffensive personalities so as to not be accused of stereotyping negative traits. Alternatively, their differences may be overemphasized or made "exotic" and glamorous.
Tokenism can also be used in newspapers and other media. Newspapers will often only criticise a minority group by using a pundit from that minority group. An asian columnist arguing that immigration is too high, or a black pundit arguing that affirmative action is wrong could be considered a token minority.
Sunday, July 26, 2009
Thermidor was the second month of the summer quarter (mois d'été). It started July 19 or July 20. It ended August 17 or August 18. It follows the Messidor and precedes the Fructidor. During Year 2, it was sometimes called Fervidor.
Saturday, July 25, 2009
Friday, July 24, 2009
Chemiluminescence is the emission of light with limited emission of heat (luminescence), as the result of a chemical reaction.
A standard example of chemiluminescence in the laboratory setting is found in the luminol test, where evidence of blood is taken when the sample glows upon contact with iron. When chemiluminescence takes place in living organisms, the phenomenon is called bioluminescence. A lightstick emits a form of light by chemiluminescence.
Chemiluminescence takes place in numerous living organisms, the American firefly being a widely studied case of bioluminescence.
Thursday, July 23, 2009
In the operation of fixed-wing aircraft, autorotation is the name given to the manner in which an aircraft in a stall, or approaching the stall, displays a tendency to roll spontaneously to the right or left. A fixed-wing aircraft in a spin rolls continuously to the right or left, displaying the characteristic known as autorotation.
In the operation of helicopters and autogyros, autorotation is the name given to the generation of lift by the main rotor even though no power is being provided to the rotor by an engine. Autogyros have an un-powered main rotor so they rely continuously on autorotation as their source of lift. Following an engine failure, a helicopter may be able to slow its descent before landing and land in a controlled manner, using autorotation.
Wednesday, July 22, 2009
Tuesday, July 21, 2009
A superscalar CPU architecture implements a form of parallelism called instruction-level parallelism within a single processor. It thereby allows faster CPU throughput than would otherwise be possible at the same clock rate. A superscalar processor executes more than one instruction during a clock cycle by simultaneously dispatching multiple instructions to redundant functional units on the processor. Each functional unit is not a separate CPU core but an execution resource within a single CPU such as an arithmetic logic unit, a bit shifter, or a multiplier.
Monday, July 20, 2009
Sunday, July 19, 2009
Saturday, July 18, 2009
Friday, July 17, 2009
Thursday, July 16, 2009
Honorificabilitudinitatibus is the ablative plural of the medieval Latin word honorificabilitudinitas, which can be translated as "the state of being able to achieve honours". It is mentioned by the character Costard in Act V, Scene I of William Shakespeare's Love's Labour's Lost. As it appears only once in Shakespeare's works, it is a hapax legomenon in the Shakespeare canon. It is also the longest word in the English language featuring alternating consonants and vowels.
Wednesday, July 15, 2009
Noodling is a southern US practice of fishing for catfish using only bare hands. Many other names, such as catfisting, grabbling, graveling, hogging, dogging, gurgling, tickling and stumping, are used in different regions for the same activity. Noodling is currently legal in eleven states.
The term "noodling", although today used primarily towards the capture of flathead catfish, can and has been applied to all hand fishing methods, regardless of the method or species of fish sought. Noodling as a term has also been applied to various unconventional methods of fishing, such as any which do not use bait, rod & reel, speargun, etc., but this usage is much less common.
Tuesday, July 14, 2009
Neoteny, also called juvenilization, is the retention, by adults in a species, of traits previously seen only in juveniles (a kind of pedomorphosis), and is a subject studied in the field of developmental biology. In neoteny, the physiological (or somatic) development of an animal or organism is slowed or delayed (alternatively, seen as a dilation of biological time). Ultimately this process results in the retention, in the adults of a species, of juvenile physical characteristics well into maturity.
Monday, July 13, 2009
Phlegmatized is a term applied to an explosive that has had an agent added to stabilize or desensitize it. Sometimes this is desirable, to enable handling or to reduce the rate of combustion. Typical phlegmatizing agents include wax, paper, water, and paraffin. These agents are nearly always flammable themselves, or at least boil off easily. Normally, only explosives which may be cast are phlegmatized. Dynamite is a phlegmatized form of nitroglycerine.
Sunday, July 12, 2009
Saturday, July 11, 2009
Friday, July 10, 2009
In mechanical watches and clocks, an escapement is a device which converts continuous rotational motion into an oscillating or back and forth motion. The term is also used in fisheries science to refer to that portion of the spawning stock surviving fishing pressures over a spawning cycle.
Thursday, July 9, 2009
A chronon is a proposed quantum of time, that is, a discrete and indivisible "unit" of time as part of a theory that proposes that time is not continuous. While time is a continuous quantity in standard quantum mechanics, many physicists have suggested that a discrete model of time might work, especially when considering the combination of quantum mechanics with general relativity to produce a theory of quantum gravity.
Wednesday, July 8, 2009
In physics and astronomy, redshift occurs when electromagnetic radiation—usually visible light—emitted or reflected by an object is shifted towards the (less energetic) red end of the electromagnetic spectrum due to the Doppler effect. More generally, redshift is defined as an increase in the wavelength of electromagnetic radiation received by a detector compared with the wavelength emitted by the source. This increase in wavelength corresponds to a drop in the frequency of the electromagnetic radiation. Conversely, a decrease in wavelength is called blue shift.
Any increase in wavelength is called "redshift", even if it occurs in electromagnetic radiation of non-optical wavelengths, such as gamma rays, x-rays and ultraviolet. This nomenclature might be confusing since, at wavelengths longer than red (e.g., infrared, microwaves, and radio waves), redshifts shift the radiation away from the red wavelengths.
Tuesday, July 7, 2009
Monday, July 6, 2009
Sunday, July 5, 2009
Saturday, July 4, 2009
The reef, rectangular, wedge-tail, or Picasso triggerfish, also known by its Hawaiian name, humuhumunukunukuāpuaʻa (also spelled Humuhumunukunukuapua'a or just humuhumu for short; meaning "triggerfish with a snout like a pig"), is one of several species of triggerfish. Classified as Rhinecanthus rectangulus, it is endemic to the salt water coasts of various central and south Pacific Ocean islands. It is often asserted that the Hawaiian name is one of the longest words in the Hawaiian Language and that "the name is longer than the fish."
Friday, July 3, 2009
cyanocobalamin, a vitamer of B12.
A vitamer of a particular vitamin is any of the chemical compounds which exhibit vitamin activity. Very commonly "vitamins" are not single compounds, but rather each vitamin, which is defined by its biological activity, not its structure, is actually represented by a number of substances, all of which show vitamin activity. These substances are called vitamers.
Typically, the vitamin activity of multiple vitamers is due to the body's (limited) ability to convert one vitamer to another, or many vitamers to the same enzymatic cofactor(s), which is active in the body as the important form of the vitamin.
As part of the definition of vitamin the body cannot completely synthesize an optimal amount of vitamin activity from simple foodstuffs, without some minimal amount of a vitamer molecule as a basis.