Monday, December 7, 2015

pinion

A pinion is a round gear used in several applications:
File:Rack and pinion animation.gif

Friday, December 4, 2015

Neuroptera

File:Chrysopidae 3035.jpg
The insect order Neuroptera, or net-winged insects, includes the lacewings, mantidflies, antlions, and their relatives. The order contains some 6,010 species. The group was once known as Planipennia, and at that time also included alderflies, fishflies, dobsonflies and snakeflies, but these are now generally considered to be separate orders (the Megaloptera and Raphidioptera). Sometimes the name Neuropterida is used to refer to these three orders as a group. This is either placed at superorder rank, with the Endopterygota becoming an unranked clade above it, or the Endopterygota are maintained as a superorder, with an unranked Neuropterida being a part of them. Within the endopterygotes, the closest living relatives of the neuropteridan clade are the beetles. The common name lacewings is often used for the most widely known net-winged insects - the green lacewings (Chrysopidae) - but actually most members of the Neuroptera are referred to as some sort of "lacewing".

Thursday, December 3, 2015

Tramontane

Tramontane is a classical name for a northern wind. The exact form of the name and precise direction varies from country to country. The word came to English from Italian tramontana, which developed from Latin trānsmontānus (trāns- + montānus), "beyond the mountains/across the mountains", referring to the Alps in the North of Italy. The word has other non-wind-related senses: it can refer to anything that comes from, or anyone who lives on, the other side of mountains, or even more generally, anything seen as foreign, strange, or even barbarous.

Wednesday, December 2, 2015

Dowlas

Dowlas is the name given to a plain cloth, similar to sheeting, but usually coarser.
It is made in several qualities, from line warp and weft to two warp and weft, and is used chiefly for aprons, pocketing, soldiers' gaiters, linings and overalls. The finer makes are sometimes made into shirts for workmen, and occasionally used for heavy pillow-cases.

Tuesday, December 1, 2015

synanthrope

 A synanthrope (from ancient Greek σύν sýn "together, with" and ἄνθρωπος ánthrōpos "man") is an organism that evolve...