Apex

Apex may refer to:

Astronomy

Biology

Places

Organizations

Apex (headdress)

The apex was a cap worn by the flamines and Salii at Rome. The essential part of the apex, to which alone the name properly belonged, was a pointed piece of olive-wood, the base of which was surrounded with a lock of wool. This was worn on the top of the head, and was held there either by fillets only, or, as was more commonly the case, was also fastened by means of two strings or bands, which were called apicula (Festus, s.v.), or offendices (Festus, s.v.), though the latter word is also interpreted to mean a kind of button, by which the strings were fastened under the chin (cf. Serv. ad Virg. Aen. ii.683, viii.664, x.270).

The flamines were forbidden by law to go into public, or even into the open air without the apex (Gellius x.15), and hence we find the expression of alicui apicem dialem imponere used as equivalent to the appointment of a Flamen Dialis (Livy vi.41). Sulpicius was deprived of the priesthood, only because the apex fell from his head whilst he was sacrificing (Valerius Maximus i.1 §5).

Apex (mollusc)

In anatomy, an apex (adjectival form: apical) is part of the shell of a mollusk. The apex is the pointed tip (the oldest part) of the shell of a gastropod, scaphopod, or cephalopod.

Gastropods

The word "apex" is most often used to mean the tip of the spire of the shell of a gastropod. The apex is the first-formed, and therefore the oldest, part of the shell.

To be more precise, the apex would usually be where the tip of the embryonic shell or protoconch is situated, if that is still present in the adult shell (often it is lost or eroded away).

Coiled gastropod shells

The phrase apical whorls, or protoconch, means the whorls that constitute the embryonic shell at the apex of the shell, especially when this is clearly distinguishable from the later whorls of the shell, otherwise known as the teleoconch.

Comparison of the apical part and the whole shell of Otukaia kiheiziebisu:

Limpet-like gastropod shells

Where this feature is present, the space under the apex of a patellate or patelliform (limpet-like) gastropod shell is called the apical cavity.

Fog

Fog is a complex atmospheric phenomenon. It is a visible mass consisting of cloud water droplets or ice crystals suspended in the air at or near the Earth's surface. Fog can be considered a type of low-lying cloud, and is heavily influenced by nearby bodies of water, topography, and wind conditions. In turn, fog has affected many human activities, such as shipping, travel, and warfare.

Definition

The term "fog" is typically distinguished from the more generic term "cloud" in that fog is low-lying, and the moisture in the fog is often generated locally (such as from a nearby body of water, like a lake or the ocean, or from nearby moist ground or marshes).

By definition, fog reduces visibility to less than 1 kilometre (0.62 mi), whereas mist causes lesser impairment of visibility.

For aviation purposes in the UK, a visibility of less than 5 kilometres (3.1 mi) but greater than 999 metres (3,278 ft) is considered to be mist if the relative humidity is 70% or greater; below 70%, haze is reported.

Tuman (album)

Tuman is a studio album of Sofia Rotaru released in the very beginning of 2007. The CD includes mostly unreleased, but already aired songs, although only a selection of them. It is a multilingual album, hence traditional edition for Sofia Rotaru. It includes popular duet with Nikolay Baskov "Raspberries Blossom" and dance remix of "White Dance", which marked in 2001 a new wave in the repertoire of Sofia Rotaru. The last song of the album "One Guelder Rose (or One Snowball Tree) was one of the most popular songs of Sofia Rotaru in Ukrainian for the last three years.

Track listing

Languages of performance

Songs 1, 18 and 19 are performed in Ukrainian language, all the other songs are performed in Russian language.

References

Abwehrflammenwerfer 42

The Abwehrflammenwerfer 42 was a German static defensive flamethrower, flame fougasse or flame mine used during the Second World War. The design was copied from Russian FOG-1 mines that were encountered in 1941 during Operation Barbarossa. These were usually buried at intervals of 12 to 30 yards (11 to 27 m) covering road blocks, landing beaches, harbour walls and other obstacles. They were normally mixed in with other mines or emplaced behind barbed wire and could be command detonated or triggered by tripwires or other devices.

The mine consisted of a large fuel cylinder 53 centimetres (21 in) high and 30 centimetres (12 in) with a capacity of 29.5 litres (6.5 imp gal; 7.8 US gal) containing a black viscid liquid; a mix of light, medium, and heavy oils. A second, smaller cylinder, 67 millimetres (2.6 in) in diameter and 25 centimetres (9.8 in) high, was mounted on top of the fuel cylinder; it contained the propellant powder, which was normally either black powder or a mixture of nitrocellulose and diethylene glycol dinitrate. A flame tube was fixed centrally on top of the fuel cylinder, it was a 50 millimetres (2.0 in) diameter pipe that rose from the centre of the fuel cylinder and curved to extend horizontally approximately 50 centimetres (20 in). When the mine was buried, only the flame tube was normally above ground.