Friday, January 31, 2014
Thursday, January 30, 2014
Wednesday, January 29, 2014
A form of punishment for web trolls:
A hellbanned user is invisible to all other users, but crucially, not himself. From their perspective, they are participating normally in the community but nobody ever responds to them. They can no longer disrupt the community because they are effectively a ghost. It's a clever way of enforcing the "don't feed the troll" rule in the community. When nothing they post ever gets a response, a hellbanned user is likely to get bored or frustrated and leave.
Tuesday, January 28, 2014
Monday, January 27, 2014
Genderqueer (GQ; alternatively non-binary) is a catch-all term for gender identities other than man and woman, thus outside of the gender binary and heteronormativity. People who identify as genderqueer may think of themselves as one or more of the following:
- both man and woman (bigender, pangender);
- neither man nor woman (genderless, agender);
- moving between genders (genderfluid);
- third gender or other-gendered; includes those who do not place a name to their gender;
- having an overlap of, or blurred lines between, gender identity and sexual orientation.
Sunday, January 26, 2014
Saturday, January 25, 2014
Friday, January 24, 2014
Thursday, January 23, 2014
Wednesday, January 22, 2014
Tuesday, January 21, 2014
A hypergiant (luminosity class 0) is a star with a tremendous mass and luminosity, showing signs of a very high rate of mass loss.
The word "hypergiant" is commonly used as a loose term for the most massive stars found, even though there are more precise definitions. In 1956, the astronomers Feast and Thackeray used the term super-supergiant (later changed into hypergiant) for stars with an absolute magnitude greater than MV = −7. In 1971, Keenan suggested that the term would be used only for supergiants showing at least one broad emission component in Hα, indicating an extended stellar atmosphere or a relatively large mass loss rate. The Keenan criterion is the one most commonly used by scientists today. This means that a hypergiant does not necessarily have to be more massive than a similar supergiant. Still, the most massive stars are considered to be hypergiants, and can have masses ranging up to 100–265 solar masses.
Monday, January 20, 2014
In geometry, a cuboctahedron is a polyhedron with eight triangular faces and six square faces. A cuboctahedron has 12 identical vertices, with two triangles and two squares meeting at each, and 24 identical edges, each separating a triangle from a square. As such it is a quasiregular polyhedron, i.e. an Archimedean solid, being vertex-transitive and edge-transitive.
Sunday, January 19, 2014
An airfoil-shaped body moved through a fluid produces an aerodynamic force. The component of this force perpendicular to the direction of motion is called lift. The component parallel to the direction of motion is called drag. Subsonic flight airfoils have a characteristic shape with a rounded leading edge, followed by a sharp trailing edge, often with asymmetric camber. Foils of similar function designed with water as the working fluid are called hydrofoils.
Saturday, January 18, 2014
Hard rime is a white ice that forms when the water droplets in fog freeze to the outer surfaces of objects. It is often seen on trees atop mountains and ridges in winter, when low-hanging clouds cause freezing fog. This fog freezes to the windward (wind-facing) side of tree branches, buildings, or any other solid objects, usually with high wind velocities and air temperatures between −2 °C (28 °F) and −8 °C (18 °F).
Scientists at meteorologically extreme places such as Mount Washington in New Hampshire often have to break huge chunks of hard rime off weather equipment, in order to keep anemometers and other measuring instruments operating.
Friday, January 17, 2014
Graupel (also called soft hail or snow pellets) refers to precipitation that forms when supercooled droplets of water are collected and freeze on a falling snowflake, forming a 2–5 mm ball of rime. The term graupel is the German word for this meteorological phenomenon. Graupel is sometimes referred to as small hail, although the World Meteorological Organization defines small hail as snow pellets encapsulated by ice, a precipitation halfway between graupel and hail.
Thursday, January 16, 2014
Wednesday, January 15, 2014
Tuesday, January 14, 2014
Orz (also seen as Or2, on_, OTZ, OTL, STO, JTO, _no, ＿冂○, 囧rz, O7Z, _|7O, Sto, O|¯|_, orz, and Jto) is an emoticon representing a kneeling or bowing person, with the "o" being the head, the "r" being the arms and part of the body, and the "z" being part of the body and the legs. This stick figure represents failure and despair. It is also commonly used for representing a great admiration (sometimes with an overtone of sarcasm) for someone else's view or action.
Monday, January 13, 2014
Sunday, January 12, 2014
Elision is the omission of one or more sounds (such as a vowel, a consonant, or a whole syllable) in a word or phrase, producing a result that is easier for the speaker to pronounce. Sometimes, sounds may be elided for euphonic effect.
In English, elision is often unintentional, giving a result that may in some cases be impressionistically described as "slurred" or "muted." Often, however, the elision is deliberate, as in the use of contractions.
Saturday, January 11, 2014
Friday, January 10, 2014
Thursday, January 9, 2014
Wednesday, January 8, 2014
Tuesday, January 7, 2014
A cephalophore (from the Greek for "head-carrier") is a saint who is generally depicted carrying his or her own head; in art, this was usually meant to signify that the subject in question had been martyred by beheading. Handling the halo in this circumstance offers a unique challenge for the artist. Some put the halo where the head used to be; others have the saint carrying the halo along with the head.
The term "cephalophore" was first used in a French article by Marcel Hébert, "Les martyrs céphalophores Euchaire, Elophe et Libaire", in Revue de l'Université de Bruxelles, v. 19 (1914).
Monday, January 6, 2014
Sunday, January 5, 2014
Saturday, January 4, 2014
Cummingtonite shares few compositional similarities with alkali amphiboles such as arfvedsonite, glaucophane-riebeckite. There is little solubility between these minerals due to different crystal habit and inability of substitution between alkali elements and ferro-magnesian elements within the amphibole structure.